:root{--color-bg: #000000;--color-bg-primary: #000000;--color-bg-secondary: #080808;--color-bg-elevated: #101010;--color-bg-card: #101010;--color-bg-hover: #1A1A1A;--color-bg-active: #242424;--color-bg-disabled: #080808;--color-border: #E7E2EB;--color-border-hover: #D8D1E0;--color-border-focus: #7E6DD8;--color-border-disabled: #F1EEF3;--color-text-primary: #272335;--color-text-secondary: #6E687B;--color-text-tertiary: #9891A4;--color-text-disabled: #B7B1BF;--color-text-inverse: #FFFFFF;--color-brand-primary: #7C69D8;--color-brand-secondary: #6756C0;--color-brand-hover: #6F5DCA;--color-brand-active: #5E4BB3;--color-brand-subtle: rgba(124, 105, 216, .12);--color-brand-subtle-hover: rgba(124, 105, 216, .19);--color-success: #10B981;--color-success-subtle: rgba(16, 185, 129, .15);--color-warning: #F59E0B;--color-warning-subtle: rgba(245, 158, 11, .15);--color-danger: #EF4444;--color-danger-subtle: rgba(239, 68, 68, .15);--color-danger-dark: #B91C1C;--color-info: #3B82F6;--color-info-subtle: rgba(59, 130, 246, .15);--color-error-bg: var(--color-danger-subtle);--color-error-border: var(--color-danger);--color-error-primary: var(--color-danger);--color-error-dark: var(--color-danger-dark);--color-error-text: var(--color-text-primary);--color-surface-primary: var(--color-bg-elevated);--color-surface-secondary: var(--color-bg-secondary);--color-surface-tertiary: var(--color-bg-hover);--font-family-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;--font-family-serif: "Fraunces", Georgia, serif;--font-family-mono: "SF Mono", "Fira Code", monospace;--font-size-xs: 11px;--font-size-sm: 12px;--font-size-base: 14px;--font-size-md: 16px;--font-size-lg: 18px;--font-size-xl: 20px;--font-size-2xl: 24px;--font-size-3xl: 30px;--font-size-4xl: 36px;--font-size-5xl: 48px;--font-size-6xl: 60px;--font-weight-regular: 400;--font-weight-medium: 500;--font-weight-semibold: 600;--font-weight-bold: 700;--line-height-tight: 1.2;--line-height-snug: 1.4;--line-height-normal: 1.5;--line-height-relaxed: 1.6;--line-height-loose: 1.8;--letter-spacing-tight: -.02em;--letter-spacing-normal: 0;--letter-spacing-wide: .02em;--space-0: 0;--space-1: 4px;--space-2: 8px;--space-3: 12px;--space-4: 16px;--space-5: 20px;--space-6: 24px;--space-8: 32px;--space-10: 40px;--space-12: 48px;--space-16: 64px;--space-20: 80px;--space-24: 96px;--radius-none: 0;--radius-sm: 4px;--radius-md: 8px;--radius-lg: 12px;--radius-xl: 16px;--radius-2xl: 20px;--radius-full: 9999px;--shadow-xs: 0 1px 2px rgba(0, 0, 0, .22);--shadow-sm: 0 6px 14px rgba(0, 0, 0, .2);--shadow-md: 0 12px 28px rgba(0, 0, 0, .24);--shadow-lg: 0 22px 46px rgba(0, 0, 0, .3);--shadow-xl: 0 28px 70px rgba(0, 0, 0, .42);--shadow-2xl: 0 38px 92px rgba(0, 0, 0, .5);--shadow-inner: inset 0 1px 2px rgba(0, 0, 0, .3);--shadow-inner-lg: inset 0 2px 4px rgba(0, 0, 0, .4);--glow-brand: 0 0 20px rgba(139, 92, 246, .3);--glow-success: 0 0 20px rgba(16, 185, 129, .3);--glow-danger: 0 0 20px rgba(239, 68, 68, .3);--duration-instant: 50ms;--duration-fast: .1s;--duration-normal: .15s;--duration-slow: .2s;--duration-slower: .25s;--duration-slowest: .3s;--ease-linear: linear;--ease-in: cubic-bezier(.4, 0, 1, 1);--ease-out: cubic-bezier(0, 0, .2, 1);--ease-in-out: cubic-bezier(.4, 0, .2, 1);--ease-bounce: cubic-bezier(.68, -.55, .265, 1.55);--easing-default: var(--ease-out);--z-index-dropdown: 100;--z-index-sticky: 200;--z-index-fixed: 300;--z-index-modal-backdrop: 400;--z-index-modal: 500;--z-index-popover: 600;--z-index-tooltip: 700;--z-index-toast: 800;--z-index-max: 9999;--breakpoint-xs: 375px;--breakpoint-sm: 480px;--breakpoint-md: 640px;--breakpoint-lg: 768px;--breakpoint-xl: 1024px;--breakpoint-2xl: 1280px;--breakpoint-3xl: 1536px;--size-button-sm: 32px;--size-button-md: 40px;--size-button-lg: 48px;--size-button-xl: 56px;--size-input-sm: 32px;--size-input-md: 40px;--size-input-lg: 48px;--size-avatar-xs: 24px;--size-avatar-sm: 32px;--size-avatar-md: 40px;--size-avatar-lg: 48px;--size-avatar-xl: 64px;--size-avatar-2xl: 96px;--size-icon-xs: 12px;--size-icon-sm: 16px;--size-icon-md: 20px;--size-icon-lg: 24px;--size-icon-xl: 32px;--layout-max-width: 1200px;--layout-content-width: 800px;--layout-sidebar-width: 280px;--layout-header-height: 64px;--layout-tab-height: 70px;--overlay-subtle: rgba(0, 0, 0, .3);--overlay-normal: rgba(0, 0, 0, .5);--overlay-strong: rgba(0, 0, 0, .7);--overlay-brand: rgba(139, 92, 246, .9)}.gap-1{gap:var(--space-1)}.gap-2{gap:var(--space-2)}.gap-3{gap:var(--space-3)}.gap-4{gap:var(--space-4)}.gap-6{gap:var(--space-6)}.gap-8{gap:var(--space-8)}.p-1{padding:var(--space-1)}.p-2{padding:var(--space-2)}.p-3{padding:var(--space-3)}.p-4{padding:var(--space-4)}.p-6{padding:var(--space-6)}.p-8{padding:var(--space-8)}.px-1{padding-left:var(--space-1);padding-right:var(--space-1)}.px-2{padding-left:var(--space-2);padding-right:var(--space-2)}.px-3{padding-left:var(--space-3);padding-right:var(--space-3)}.px-4{padding-left:var(--space-4);padding-right:var(--space-4)}.px-6{padding-left:var(--space-6);padding-right:var(--space-6)}.py-1{padding-top:var(--space-1);padding-bottom:var(--space-1)}.py-2{padding-top:var(--space-2);padding-bottom:var(--space-2)}.py-3{padding-top:var(--space-3);padding-bottom:var(--space-3)}.py-4{padding-top:var(--space-4);padding-bottom:var(--space-4)}.py-6{padding-top:var(--space-6);padding-bottom:var(--space-6)}.m-1{margin:var(--space-1)}.m-2{margin:var(--space-2)}.m-3{margin:var(--space-3)}.m-4{margin:var(--space-4)}.m-6{margin:var(--space-6)}.m-8{margin:var(--space-8)}.mx-auto{margin-left:auto;margin-right:auto}.my-auto{margin-top:auto;margin-bottom:auto}.text-xs{font-size:var(--font-size-xs)}.text-sm{font-size:var(--font-size-sm)}.text-base{font-size:var(--font-size-base)}.text-md{font-size:var(--font-size-md)}.text-lg{font-size:var(--font-size-lg)}.text-xl{font-size:var(--font-size-xl)}.font-regular{font-weight:var(--font-weight-regular)}.font-medium{font-weight:var(--font-weight-medium)}.font-semibold{font-weight:var(--font-weight-semibold)}.font-bold{font-weight:var(--font-weight-bold)}.text-primary{color:var(--color-text-primary)}.text-secondary{color:var(--color-text-secondary)}.text-tertiary{color:var(--color-text-tertiary)}.text-brand{color:var(--color-brand-primary)}.text-success{color:var(--color-success)}.text-warning{color:var(--color-warning)}.text-danger{color:var(--color-danger)}.bg-brand{background-color:var(--color-brand-primary)}.bg-success{background-color:var(--color-success)}.bg-warning{background-color:var(--color-warning)}.bg-danger{background-color:var(--color-danger)}.border{border:1px solid var(--color-border)}.border-brand{border-color:var(--color-brand-primary)}.border-success{border-color:var(--color-success)}.border-danger{border-color:var(--color-danger)}.rounded-sm{border-radius:var(--radius-sm)}.rounded-md{border-radius:var(--radius-md)}.rounded-lg{border-radius:var(--radius-lg)}.rounded-xl{border-radius:var(--radius-xl)}.rounded-full{border-radius:var(--radius-full)}.shadow-sm{box-shadow:var(--shadow-sm)}.shadow-md{box-shadow:var(--shadow-md)}.shadow-lg{box-shadow:var(--shadow-lg)}.shadow-xl{box-shadow:var(--shadow-xl)}.hidden{display:none!important}.flex{display:flex}.inline-flex{display:inline-flex}.grid{display:grid}.flex-col{flex-direction:column}.items-center{align-items:center}.justify-center{justify-content:center}.justify-between{justify-content:space-between}.relative{position:relative}.absolute{position:absolute}.fixed{position:fixed}.cursor-pointer{cursor:pointer}.cursor-not-allowed{cursor:not-allowed}.transition{transition:all var(--duration-normal) var(--ease-out)}.transition-fast{transition:all var(--duration-fast) var(--ease-out)}.transition-slow{transition:all var(--duration-slow) var(--ease-out)}.overflow-hidden{overflow:hidden}.overflow-auto{overflow:auto}.overflow-scroll{overflow:scroll}:root{--bg: var(--color-bg);--bg-alt: var(--color-bg-secondary);--bg-card: var(--color-bg-card);--bg-primary: var(--color-bg-primary);--bg-secondary: var(--color-bg-secondary);--bg-hover: var(--color-bg-hover);--fg: var(--color-text-primary);--fg-dim: var(--color-text-secondary);--fg-faint: var(--color-text-tertiary);--fg-primary: var(--color-text-primary);--fg-secondary: var(--color-text-secondary);--line: var(--color-border);--border: var(--color-border);--purple: var(--color-brand-primary);--purple-dark: var(--color-brand-hover);--purple-light: var(--color-brand-primary);--accent: var(--color-brand-primary);--accent-hover: var(--color-brand-hover);--amber: var(--color-warning);--amber-light: var(--color-warning);--green: var(--color-success);--red: var(--color-danger);--shadow: var(--shadow-lg);--tab-height: var(--layout-tab-height)}*{box-sizing:border-box}html,body{margin:0;padding:0;height:100%;background:var(--color-bg);color:var(--color-text-primary);font-family:var(--font-family-sans);overflow:hidden;-webkit-tap-highlight-color:transparent}::selection{background:var(--color-brand-primary);color:#fff}[data-theme=light]{--color-bg: #FCF4E3;--color-bg-primary: #FCF4E3;--color-bg-secondary: #F6E9D1;--color-bg-elevated: #FCF4E3;--color-bg-card: #FCF4E3;--color-bg-hover: #F0DFC1;--color-bg-active: #E8D3B1;--color-bg-disabled: #F9F0E0;--color-border: #E4D1B0;--color-border-hover: #CFB78E;--color-border-focus: #7560D9;--color-border-disabled: #F0E3CD;--color-text-primary: #211A10;--color-text-secondary: #62513B;--color-text-tertiary: #8A765B;--color-text-disabled: #B9A98F;--color-text-inverse: #FFFFFF;--color-danger-dark: #B4232D;--color-error-bg: #FBE8E5;--color-error-border: #D8756C;--color-error-primary: #B4232D;--color-error-dark: #7F1720;--color-error-text: #5C1D1D;--color-surface-primary: var(--color-bg-elevated);--color-surface-secondary: var(--color-bg-secondary);--color-surface-tertiary: var(--color-bg-hover);--easing-default: var(--ease-out);--shadow-xs: 0 1px 2px rgba(0, 0, 0, .05);--shadow-sm: 0 2px 4px rgba(0, 0, 0, .08);--shadow-md: 0 4px 8px rgba(0, 0, 0, .1);--shadow-lg: 0 8px 16px rgba(0, 0, 0, .12);--shadow-xl: 0 16px 32px rgba(0, 0, 0, .15);--shadow-2xl: 0 24px 48px rgba(0, 0, 0, .18);--shadow-inner: inset 0 1px 2px rgba(0, 0, 0, .05);--shadow-inner-lg: inset 0 2px 4px rgba(0, 0, 0, .08);--overlay-subtle: rgba(0, 0, 0, .1);--overlay-normal: rgba(0, 0, 0, .3);--overlay-strong: rgba(0, 0, 0, .5)}[data-theme=dark]{--color-bg: #000000;--color-bg-primary: #000000;--color-bg-secondary: #080808;--color-bg-elevated: #101010;--color-bg-card: #101010;--color-bg-hover: #1A1A1A;--color-bg-active: #242424;--color-bg-disabled: #080808;--color-border: #2A2A2A;--color-border-hover: #484848;--color-border-focus: #7770DD;--color-border-disabled: #2B2B2B;--color-text-primary: #FFFFFF;--color-text-secondary: #B6B6B6;--color-text-tertiary: #858585;--color-text-disabled: #5A5A5A;--color-text-inverse: #000000;--color-danger-dark: #B91C1C;--color-error-bg: #311315;--color-error-border: #8F3035;--color-error-primary: #FF7474;--color-error-dark: #B91C1C;--color-error-text: #FFE1E1;--color-surface-primary: var(--color-bg-elevated);--color-surface-secondary: var(--color-bg-secondary);--color-surface-tertiary: var(--color-bg-hover);--easing-default: var(--ease-out);--shadow-xs: 0 1px 2px rgba(0, 0, 0, .3);--shadow-sm: 0 2px 4px rgba(0, 0, 0, .4);--shadow-md: 0 4px 8px rgba(0, 0, 0, .5);--shadow-lg: 0 8px 16px rgba(0, 0, 0, .6);--shadow-xl: 0 16px 32px rgba(0, 0, 0, .7);--shadow-2xl: 0 24px 48px rgba(0, 0, 0, .8);--shadow-inner: inset 0 1px 2px rgba(0, 0, 0, .3);--shadow-inner-lg: inset 0 2px 4px rgba(0, 0, 0, .4);--overlay-subtle: rgba(0, 0, 0, .3);--overlay-normal: rgba(0, 0, 0, .5);--overlay-strong: rgba(0, 0, 0, .7)}#app{display:flex;flex-direction:column;height:100%;padding-bottom:var(--real-tab-bar-height, calc(var(--layout-tab-height) + env(safe-area-inset-bottom, 0px)));box-sizing:border-box}.page{flex:1;height:100%;overflow:hidden;position:relative;min-height:0}.page.active{display:flex;flex-direction:column;min-height:0}#chatPage{display:none;flex-direction:column;background:var(--color-bg);min-height:0}#chatPage.active{display:flex;min-height:0}.chat-header{padding:var(--space-3) var(--space-4);border-bottom:1px solid var(--color-border);font-family:var(--font-family-sans);font-weight:var(--font-weight-semibold);font-size:var(--font-size-md);letter-spacing:var(--letter-spacing-tight);flex-shrink:0;display:flex;align-items:center;justify-content:space-between;background:var(--color-bg-secondary)}.chat-header-left{display:flex;align-items:center;gap:var(--space-3)}.chat-header-icon{width:36px;height:36px;border-radius:var(--radius-full);background:linear-gradient(135deg,var(--color-brand-primary) 0%,var(--color-brand-hover) 100%);display:flex;align-items:center;justify-content:center;font-size:var(--font-size-lg);flex-shrink:0}.chat-header-title{color:var(--color-text-primary);font-weight:var(--font-weight-bold);font-size:var(--font-size-md)}.chat-header-status{display:flex;align-items:center;gap:var(--space-2);font-family:var(--font-family-sans);font-size:var(--font-size-xs);font-weight:var(--font-weight-medium);color:var(--color-success);background:var(--color-success-subtle);padding:var(--space-1) var(--space-3);border-radius:var(--radius-full);border:1px solid rgba(16,185,129,.3)}.chat-header-center{display:flex;align-items:center;gap:var(--space-2)}.stat-pill{display:flex;align-items:center;gap:var(--space-2);font-family:var(--font-family-sans);font-size:var(--font-size-xs);font-weight:var(--font-weight-semibold);color:var(--color-text-secondary);background:var(--color-bg-card);padding:var(--space-2) var(--space-3);border-radius:var(--radius-full);border:1px solid var(--color-border)}.stat-pill.xp{color:var(--color-warning)}.stat-pill.streak{color:var(--color-danger)}.chat-header-right{display:flex;align-items:center;gap:var(--space-2)}.mode-toggle{display:flex;align-items:center;gap:var(--space-1);font-family:var(--font-family-sans);font-size:var(--font-size-sm);font-weight:var(--font-weight-semibold);padding:var(--space-2) var(--space-4);border-radius:var(--radius-full);cursor:pointer;transition:all var(--duration-normal) var(--ease-out)}.mode-toggle.active{background:linear-gradient(135deg,var(--color-brand-primary) 0%,var(--color-brand-hover) 100%);color:#fff;border:none}.mode-toggle:not(.active){background:transparent;border:1px solid var(--color-border);color:var(--color-text-secondary)}.mode-toggle:not(.active):hover{border-color:var(--color-brand-primary);color:var(--color-brand-primary)}.chat-messages{flex:1;overflow-y:auto;padding:var(--space-4) var(--space-5) var(--space-2);display:flex;flex-direction:column;gap:var(--space-3);min-height:0}.chat-messages::-webkit-scrollbar{width:4px}.chat-messages::-webkit-scrollbar-thumb{background:var(--color-border);border-radius:var(--radius-sm)}.chat-input-area{padding:var(--space-3) var(--space-4) var(--space-4);border-top:1px solid var(--color-border);flex-shrink:0;display:flex;gap:var(--space-3);background:var(--color-bg);align-items:center}.file-preview-area{padding:var(--space-2) var(--space-4) 0;display:flex;flex-wrap:wrap;gap:var(--space-2);min-height:0;max-height:120px;overflow-y:auto}.file-preview-area::-webkit-scrollbar{width:4px}.file-preview-area::-webkit-scrollbar-thumb{background:var(--color-border);border-radius:var(--radius-sm)}#reelsPage{display:none;flex-direction:column;background:var(--color-bg)}#reelsPage.active{display:flex}.reels-header{padding:var(--space-3) var(--space-5);border-bottom:1px solid var(--color-border);flex-shrink:0;display:flex;align-items:center;justify-content:space-between;gap:var(--space-3);background:var(--color-bg);display:none!important}@media (max-width: 768px){.reels-header{display:none!important}}.reels-header .title{font-family:var(--font-family-serif);font-weight:var(--font-weight-semibold);font-size:var(--font-size-md);letter-spacing:var(--letter-spacing-tight);display:flex;align-items:center;gap:var(--space-2)}.reels-header .title .node-name{font-family:var(--font-family-sans);font-weight:var(--font-weight-regular);font-size:var(--font-size-sm);color:var(--color-text-secondary);background:var(--color-bg-secondary);padding:var(--space-1) var(--space-3);border-radius:var(--radius-full);border:1px solid var(--color-border)}.reels-header .actions{display:flex;gap:var(--space-2)}#reelsContainer{flex:1;min-height:0;overflow-y:scroll;scroll-snap-type:y mandatory;scroll-behavior:smooth;-webkit-overflow-scrolling:touch}#reelsContainer::-webkit-scrollbar{width:0}.reel{height:100%;min-height:100%;width:100%;flex-shrink:0;scroll-snap-align:start;scroll-snap-stop:always;display:flex;align-items:center;justify-content:center;position:relative;padding:0 46px;box-sizing:border-box}@media (max-width:700px){.reel{padding:0 30px}}.reel-inner{position:relative;max-width:640px;width:100%;max-height:82%;overflow-y:auto;overscroll-behavior:auto;background:var(--color-bg-elevated);border:1px solid var(--color-border);border-radius:var(--radius-lg);box-shadow:0 8px 30px #0000001f;padding:var(--space-6);box-sizing:border-box}.reel-inner::-webkit-scrollbar{width:0}@media (max-width:700px){.reel-inner{max-height:78%;padding:var(--space-4);border-radius:var(--radius-md)}}.lesson-navigation{flex-shrink:0;width:100%;display:flex;flex-direction:column;position:sticky;bottom:0;z-index:5;padding:var(--space-4) var(--space-5);background:var(--color-bg-elevated);border-top:1px solid var(--color-border);transition:height var(--duration-slower) var(--ease-out),opacity var(--duration-slower) var(--ease-out)}.lesson-navigation.collapsed{height:0;overflow:hidden;opacity:0;padding:0}#savedPage{display:none;flex-direction:column;background:var(--color-bg)}#savedPage.active{display:flex}.saved-header{padding:var(--space-3) var(--space-5);border-bottom:1px solid var(--color-border);flex-shrink:0;background:var(--color-bg-secondary)}.saved-header .title{font-family:var(--font-family-serif);font-weight:var(--font-weight-semibold);font-size:var(--font-size-lg);color:var(--color-text-primary)}.saved-folders-container{flex:1;overflow-y:auto;padding:var(--space-5)}.saved-folders-container::-webkit-scrollbar{width:4px}.saved-folders-container::-webkit-scrollbar-thumb{background:var(--color-border);border-radius:var(--radius-sm)}.saved-folder-card{background:var(--color-bg-card);border:1px solid var(--color-border);border-radius:var(--radius-lg);padding:var(--space-4) var(--space-5);margin-bottom:var(--space-3);cursor:pointer;transition:all var(--duration-normal) var(--ease-out)}.saved-folder-card:hover{border-color:var(--color-brand-primary);transform:translateY(-2px)}.saved-folder-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:var(--space-2)}.saved-folder-name{font-family:var(--font-family-sans);font-weight:var(--font-weight-semibold);font-size:var(--font-size-md);color:var(--color-text-primary)}.saved-folder-count{font-family:var(--font-family-sans);font-size:var(--font-size-xs);font-weight:var(--font-weight-medium);color:var(--color-text-secondary);background:var(--color-bg-secondary);padding:var(--space-1) var(--space-3);border-radius:var(--radius-full)}.saved-folder-back{display:flex;align-items:center;gap:var(--space-2);margin-bottom:var(--space-4);background:none;border:none;color:var(--color-brand-primary);font-family:var(--font-family-sans);font-size:var(--font-size-sm);font-weight:var(--font-weight-medium);cursor:pointer;padding:var(--space-2) 0}.saved-folder-back:hover{color:var(--color-brand-hover)}.saved-reels-container{flex:1;overflow-y:auto;padding:var(--space-5)}.saved-reels-container::-webkit-scrollbar{width:4px}.saved-reels-container::-webkit-scrollbar-thumb{background:var(--color-border);border-radius:var(--radius-sm)}.saved-reel-preview-slot{margin:var(--space-3) 0;border-radius:var(--radius-md);overflow:hidden;border:1px solid var(--color-border);background:var(--color-bg-secondary)}.saved-reel-item{background:var(--color-bg-card);border:1px solid var(--color-border);border-radius:var(--radius-lg);padding:var(--space-4);margin-bottom:var(--space-3);position:relative}.saved-reel-headline{font-family:var(--font-family-serif);font-weight:var(--font-weight-semibold);font-size:var(--font-size-lg);color:var(--color-text-primary);margin-bottom:var(--space-2)}.saved-reel-body{font-family:var(--font-family-sans);font-size:var(--font-size-base);color:var(--color-text-secondary);line-height:var(--line-height-normal);margin-bottom:var(--space-3)}.saved-reel-meta{font-family:var(--font-family-sans);font-size:var(--font-size-xs);color:var(--color-text-tertiary);display:flex;justify-content:space-between;align-items:center}.saved-reel-actions{display:flex;gap:var(--space-2);margin-top:var(--space-3)}.saved-reel-action-btn{flex:1;padding:var(--space-2);border:none;border-radius:var(--radius-md);font-size:var(--font-size-xs);cursor:pointer;transition:all var(--duration-normal) var(--ease-out);font-family:var(--font-family-sans);font-weight:var(--font-weight-medium)}.saved-reel-action-btn.unsave{background:var(--color-bg-secondary);color:var(--color-danger);border:1px solid var(--color-border)}.saved-reel-action-btn.unsave:hover{background:var(--color-danger);color:#fff}.saved-empty{text-align:center;padding:60px var(--space-5);color:var(--color-text-secondary)}.saved-empty-icon{font-size:var(--font-size-5xl);margin-bottom:var(--space-4);opacity:.5}.saved-empty-text{font-family:var(--font-family-sans);font-size:var(--font-size-md)}#setup{position:fixed;top:0;right:0;bottom:0;left:0;z-index:var(--z-index-fixed);display:flex;align-items:center;justify-content:center;background:radial-gradient(ellipse at 50% 20%,var(--color-bg-elevated) 0%,var(--color-bg) 65%);padding:var(--space-6)}.panel{width:100%;max-width:440px;border:1px solid var(--color-border);border-radius:var(--radius-xl);background:var(--color-bg-secondary);box-shadow:var(--shadow-lg);padding:var(--space-8) var(--space-8) var(--space-7);position:relative;overflow:hidden}.panel:before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,var(--color-warning),var(--color-danger),var(--color-brand-primary),var(--color-success))}.eyebrow{font-family:JetBrains Mono,monospace;font-size:var(--font-size-xs);letter-spacing:.15em;text-transform:uppercase;color:var(--color-text-tertiary);margin-bottom:var(--space-3)}.panel h1{font-family:var(--font-family-serif);font-weight:var(--font-weight-semibold);font-size:var(--font-size-5xl);line-height:var(--line-height-tight);margin:0 0 var(--space-2);letter-spacing:var(--letter-spacing-tight)}.panel h1 em{color:var(--color-warning);font-style:italic;font-weight:var(--font-weight-medium)}.panel p.sub{color:var(--color-text-secondary);font-size:var(--font-size-sm);line-height:var(--line-height-normal);margin:0 0 var(--space-6)}.field{margin-bottom:var(--space-4)}.field label{display:block;font-family:JetBrains Mono,monospace;font-size:var(--font-size-xs);letter-spacing:.08em;text-transform:uppercase;color:var(--color-text-tertiary);margin-bottom:var(--space-2)}.field input{width:100%;background:var(--color-bg-elevated);border:1px solid var(--color-border);border-radius:var(--radius-md);color:var(--color-text-primary);font-family:var(--font-family-sans);font-size:var(--font-size-base);padding:var(--space-3) var(--space-3);outline:none;transition:border-color var(--duration-normal) var(--ease-out)}.field input::placeholder{color:var(--color-text-tertiary)}.field input:focus{border-color:var(--color-brand-primary)}.row2{display:flex;gap:var(--space-3)}.row2 .field{flex:1}.hint{font-size:var(--font-size-xs);color:var(--color-text-tertiary);margin:-8px 0 var(--space-4);line-height:var(--line-height-normal)}.btn-primary{width:100%;border:none;border-radius:var(--radius-md);padding:var(--space-3) var(--space-4);cursor:pointer;font-family:var(--font-family-sans);font-size:var(--font-size-base);font-weight:var(--font-weight-semibold);background:linear-gradient(135deg,var(--color-brand-primary) 0%,var(--color-brand-hover) 100%);color:#fff;transition:transform var(--duration-normal) var(--ease-out),box-shadow var(--duration-normal) var(--ease-out);letter-spacing:.01em}.btn-primary:hover{transform:translateY(-1px);box-shadow:0 8px 22px #8b5cf666}.btn-primary:active{transform:translateY(0)}.btn-primary:disabled{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none}.err-box{background:var(--color-danger-subtle);border:1px solid var(--color-danger);color:var(--color-danger);font-size:var(--font-size-sm);padding:var(--space-3) var(--space-3);border-radius:var(--radius-md);margin-bottom:var(--space-4);line-height:var(--line-height-normal);display:none;word-break:break-word}.mode-buttons{display:flex;gap:var(--space-2)}.mode-btn{background:var(--color-bg-secondary);border:1px solid var(--color-border);border-radius:var(--radius-full);padding:var(--space-2) var(--space-4);font-family:var(--font-family-sans);font-size:var(--font-size-sm);font-weight:var(--font-weight-medium);color:var(--color-text-secondary);cursor:pointer;transition:all var(--duration-normal) var(--ease-out);display:flex;align-items:center;gap:var(--space-2)}.mode-btn:hover{border-color:var(--color-brand-primary);color:var(--color-text-primary)}.mode-btn.active{background:linear-gradient(135deg,var(--color-brand-primary) 0%,var(--color-brand-hover) 100%);border-color:var(--color-brand-primary);color:#fff}.upload-btn{background:var(--color-bg-secondary);border:1px solid var(--color-border);border-radius:var(--radius-full);width:var(--size-avatar-md);height:var(--size-avatar-md);font-size:var(--font-size-xl);font-weight:var(--font-weight-semibold);color:var(--color-text-secondary);cursor:pointer;transition:all var(--duration-normal) var(--ease-out);display:flex;align-items:center;justify-content:center;flex-shrink:0}.upload-btn:hover{border-color:var(--color-brand-primary);color:var(--color-brand-primary);background:var(--color-brand-subtle)}.chat-input-area input{flex:1;background:var(--color-bg-card);border:2px solid var(--color-border);border-radius:var(--radius-full);color:var(--color-text-primary);font-family:var(--font-family-sans);font-size:var(--font-size-base);padding:var(--space-3) var(--space-4);outline:none;transition:border-color var(--duration-normal) var(--ease-out),box-shadow var(--duration-normal) var(--ease-out)}.chat-input-area input:focus{border-color:var(--color-brand-primary);box-shadow:0 0 0 3px #8b5cf633}.chat-input-area input::placeholder{color:var(--color-text-tertiary)}.chat-input-area button#sendBtn{background:linear-gradient(135deg,var(--color-brand-primary) 0%,var(--color-brand-secondary) 100%);border:none;border-radius:var(--radius-full);padding:0 var(--space-5);font-weight:var(--font-weight-semibold);color:var(--color-text-inverse);cursor:pointer;font-size:var(--font-size-base);transition:transform var(--duration-normal) var(--ease-out),box-shadow var(--duration-normal) var(--ease-out);white-space:nowrap}.chat-input-area button#sendBtn:hover{transform:scale(1.02);box-shadow:0 4px 16px #8b5cf666}.chat-input-area button#sendBtn:disabled{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none}.file-preview-item{background:var(--color-bg-secondary);border:1px solid var(--color-border);border-radius:var(--radius-md);padding:var(--space-2) var(--space-3);display:flex;align-items:center;gap:var(--space-2);font-size:var(--font-size-xs);color:var(--color-text-primary);max-width:200px}.file-preview-item .file-icon{font-size:var(--font-size-base);flex-shrink:0}.file-preview-item .file-name{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.file-preview-item .file-remove{background:transparent;border:none;color:var(--color-text-tertiary);cursor:pointer;font-size:var(--font-size-sm);padding:var(--space-1);border-radius:var(--radius-sm);transition:all var(--duration-normal) var(--ease-out);flex-shrink:0}.file-preview-item .file-remove:hover{color:var(--color-brand-primary);background:var(--color-brand-subtle)}.explain-differently-btn{background:var(--color-bg-secondary);border:1px solid var(--color-border);color:var(--color-text-primary);padding:var(--space-2) var(--space-3);border-radius:var(--radius-md);font-size:var(--font-size-xs);font-family:var(--font-family-sans);cursor:pointer;transition:all var(--duration-normal) var(--ease-out);margin-top:var(--space-3)}.explain-differently-btn:hover{background:var(--color-border);border-color:var(--color-text-secondary)}.explain-differently-btn:disabled{opacity:.5;cursor:not-allowed}.stats-indicator{display:flex;align-items:center;gap:var(--space-3);font-family:var(--font-family-sans);font-size:var(--font-size-xs);color:var(--color-text-secondary)}.xp-badge,.streak-badge{display:flex;align-items:center;gap:var(--space-1);padding:var(--space-1) var(--space-2);background:var(--color-bg-secondary);border-radius:var(--radius-full);font-weight:var(--font-weight-semibold);color:var(--color-text-primary)}.xp-badge{color:var(--color-warning)}.streak-badge{color:var(--color-danger)}#xpDisplay,#streakDisplay{font-family:JetBrains Mono,monospace;font-weight:var(--font-weight-semibold)}.loading-message{font-family:var(--font-family-sans);font-size:var(--font-size-md);font-weight:var(--font-weight-medium);color:var(--color-text-secondary);text-align:center;margin-bottom:var(--space-4)}.loading-dots{text-align:center;font-size:var(--font-size-2xl);color:var(--color-brand-primary);animation:pulse 1.5s infinite}.regenerating-content{text-align:center;padding:var(--space-5)}.regenerating-content .loading-message{font-family:var(--font-family-sans);font-size:var(--font-size-sm);font-weight:var(--font-weight-medium);color:var(--color-text-secondary);margin-bottom:var(--space-2)}.regenerating-content .loading-dots{font-size:var(--font-size-xl);color:var(--color-brand-primary);animation:pulse 1.5s infinite}.regeneration-error{text-align:center;padding:var(--space-5);color:var(--color-danger)}.regeneration-error .error-icon{font-size:var(--font-size-2xl);display:block;margin-bottom:var(--space-2)}.regeneration-error .error-text{font-family:var(--font-family-sans);font-size:var(--font-size-sm)}.offline-banner{position:fixed;top:0;left:0;right:0;background:var(--color-danger);color:#fff;padding:var(--space-3) var(--space-4);text-align:center;font-weight:var(--font-weight-semibold);z-index:var(--z-index-max);font-family:var(--font-family-sans);font-size:var(--font-size-sm);box-shadow:0 4px 12px #0000004d}#tabBar{position:fixed;bottom:0;left:0;right:0;z-index:var(--z-index-sticky);height:var(--layout-tab-height);background:var(--color-bg-secondary);border-top:1px solid var(--color-border);display:flex;align-items:center;justify-content:space-around;padding-bottom:env(safe-area-inset-bottom)}.tab-item{flex:1;display:flex;flex-direction:column;align-items:center;gap:var(--space-1);background:none;border:none;color:var(--color-text-tertiary);cursor:pointer;font-family:var(--font-family-sans);font-size:var(--font-size-xs);letter-spacing:.04em;padding:var(--space-2) 0;transition:color var(--duration-normal) var(--ease-out);position:relative;min-height:44px}.tab-item .tab-icon{font-size:var(--font-size-xl);line-height:1}.tab-item.active{color:var(--color-brand-primary)}.tab-item.active:after{content:"";position:absolute;bottom:0;left:50%;transform:translate(-50%);width:24px;height:3px;background:var(--color-brand-primary);border-radius:var(--radius-sm)}.tab-item:hover{color:var(--color-text-secondary)}.tab-item.active:hover{color:var(--color-brand-primary)}.settings-btn{background:none;border:none;color:var(--color-text-tertiary);cursor:pointer;font-size:var(--font-size-2xl);padding:var(--space-2) var(--space-4);transition:color var(--duration-normal) var(--ease-out),transform var(--duration-normal) var(--ease-out)}.settings-btn:hover{color:var(--color-text-secondary);transform:rotate(30deg)}.settings-content{padding:var(--space-6)}.setting-item{margin-bottom:var(--space-6)}.setting-label{display:block;font-size:var(--font-size-base);font-weight:var(--font-weight-medium);color:var(--color-text-primary);margin-bottom:var(--space-3)}.theme-toggle{display:flex;gap:var(--space-3)}.theme-btn{flex:1;display:flex;flex-direction:column;align-items:center;gap:var(--space-2);padding:var(--space-4);border:2px solid var(--color-border);border-radius:var(--radius-lg);background:var(--color-bg-secondary);color:var(--color-text-primary);cursor:pointer;transition:all var(--duration-normal) var(--ease-out)}.theme-btn:hover{border-color:var(--color-brand-primary)}.theme-btn.active{border-color:var(--color-brand-primary);background:var(--color-bg-secondary);box-shadow:0 0 0 3px #8b5cf633}.voice-toggle{display:flex;gap:var(--space-3)}.voice-btn{flex:1;display:flex;flex-direction:column;align-items:center;gap:var(--space-2);padding:var(--space-4);border:2px solid var(--color-border);border-radius:var(--radius-lg);background:var(--color-bg-secondary);color:var(--color-text-primary);cursor:pointer;transition:all var(--duration-normal) var(--ease-out)}.voice-btn:hover{border-color:var(--color-brand-primary)}.voice-btn.active{border-color:var(--color-brand-primary);background:var(--color-bg-secondary);box-shadow:0 0 0 3px #8b5cf633}.theme-icon{font-size:var(--font-size-3xl)}.theme-name{font-size:var(--font-size-sm);font-weight:var(--font-weight-medium)}.sidebar-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;background:#00000080;z-index:calc(var(--z-index-sticky) - 1);opacity:0;pointer-events:none;transition:opacity var(--duration-normal) var(--ease-out)}.sidebar-backdrop:not([hidden]){opacity:1;pointer-events:auto}.conversation-sidebar{position:fixed;left:0;top:0;bottom:var(--real-tab-bar-height, calc(var(--layout-tab-height) + env(safe-area-inset-bottom, 0px)));width:var(--layout-sidebar-width);background:var(--color-bg-secondary);border-right:1px solid var(--color-border);z-index:var(--z-index-sticky);display:flex;flex-direction:column;transform:translate(-100%);transition:transform var(--duration-slow) var(--ease-out)}.conversation-sidebar.open{transform:translate(0)}.sidebar-header{display:flex;justify-content:space-between;align-items:center;padding:var(--space-4) var(--space-5);border-bottom:1px solid var(--color-border)}.sidebar-header h3{font-family:var(--font-family-serif);font-weight:var(--font-weight-semibold);font-size:var(--font-size-lg);margin:0;color:var(--color-text-primary)}.sidebar-header-actions{display:flex;gap:var(--space-2);align-items:center}.new-conv-btn{background:linear-gradient(135deg,var(--color-brand-primary) 0%,var(--color-brand-hover) 100%);color:#fff;border:none;width:32px;height:32px;border-radius:var(--radius-full);font-size:var(--font-size-lg);cursor:pointer;display:flex;align-items:center;justify-content:center;transition:transform var(--duration-normal) var(--ease-out),opacity var(--duration-normal) var(--ease-out)}.new-conv-btn:hover{transform:scale(1.1);opacity:.9}.close-sidebar-btn{background:transparent;color:var(--color-text-tertiary);border:none;width:32px;height:32px;border-radius:var(--radius-full);font-size:var(--font-size-xl);cursor:pointer;display:flex;align-items:center;justify-content:center;transition:color var(--duration-normal) var(--ease-out),background var(--duration-normal) var(--ease-out)}.close-sidebar-btn:hover{color:var(--color-text-primary);background:var(--color-border)}.open-sidebar-btn{background:transparent;color:var(--color-text-secondary);border:none;width:32px;height:32px;border-radius:var(--radius-full);font-size:var(--font-size-lg);cursor:pointer;display:flex;align-items:center;justify-content:center;transition:color var(--duration-normal) var(--ease-out),background var(--duration-normal) var(--ease-out)}.open-sidebar-btn:hover{color:var(--color-text-primary);background:var(--color-border)}.conversation-list{flex:1;overflow-y:auto;padding:var(--space-2)}.conversation-list::-webkit-scrollbar{width:4px}.conversation-list::-webkit-scrollbar-thumb{background:var(--color-border);border-radius:var(--radius-sm)}.sidebar-footer{position:relative;flex-shrink:0;padding:12px;border-top:1px solid var(--color-border);background:var(--color-bg-secondary)}.account-btn{width:100%;min-height:48px;display:flex;align-items:center;gap:10px;padding:8px;border:1px solid transparent;border-radius:10px;background:transparent;color:var(--color-text-primary);font:500 14px var(--font-family-sans);text-align:left;cursor:pointer;transition:background var(--duration-normal) var(--ease-out),border-color var(--duration-normal) var(--ease-out)}.account-btn:hover,.account-btn[aria-expanded=true]{background:var(--color-bg-hover);border-color:var(--color-border)}.account-avatar{width:30px;height:30px;flex:0 0 30px;display:grid;place-items:center;overflow:hidden;border-radius:50%;background:var(--color-brand-subtle);color:var(--color-brand-primary);font-size:12px;font-weight:700}.account-avatar img{width:100%;height:100%;object-fit:cover}.account-name{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.account-more{color:var(--color-text-tertiary);font-size:15px;letter-spacing:1px}.account-menu{position:absolute;right:12px;bottom:68px;left:12px;z-index:calc(var(--z-index-sticky) + 1);padding:6px;border:1px solid var(--color-border);border-radius:12px;background:var(--color-bg-elevated);box-shadow:var(--shadow-md)}.account-menu[hidden]{display:none}.account-menu-item{width:100%;display:flex;align-items:center;gap:10px;padding:10px;border:0;border-radius:8px;background:transparent;color:var(--color-text-primary);font:500 14px var(--font-family-sans);cursor:pointer;text-align:left}.account-menu-item:hover{background:var(--color-bg-hover)}.sidebar-brand{display:flex;align-items:center;gap:10px;padding:22px 20px 18px;color:var(--color-text-primary);font-size:21px;font-weight:700;letter-spacing:-.04em}.sidebar-brand-mark{width:34px;height:34px;display:grid;place-items:center;border-radius:11px;color:#fff;background:linear-gradient(135deg,#e66aa1,#7b62d5);box-shadow:0 6px 16px #7c69d838}.sidebar-header{padding:10px 20px 14px;border:0;display:block}.sidebar-header h3{margin:16px 0 10px 14px;color:var(--color-text-tertiary);font-family:var(--font-family-sans);font-size:11px;font-weight:600;letter-spacing:.1em;text-transform:uppercase}.sidebar-header-actions{display:block}.new-conv-btn{width:100%;height:54px;padding:0 18px;border-radius:13px;justify-content:flex-start;gap:12px;font:600 14px var(--font-family-sans);box-shadow:none}.new-conv-btn span{font-size:23px;font-weight:400;line-height:1}.close-sidebar-btn{position:absolute;right:12px;top:18px}.conversation-list{padding:6px 20px}.conversation-item{margin:2px 0;padding:12px 14px;border:0;border-radius:10px}.conversation-item.active{border-left:0;background:var(--color-bg-elevated);box-shadow:var(--shadow-xs)}.chat-header{min-height:54px;padding:9px 28px;background:var(--color-bg);border-bottom:0}.chat-header-left>span{font:600 14px var(--font-family-sans)}#topicHint,.stats-indicator{display:none}.mode-buttons{margin-left:auto;padding:2px;border:1px solid var(--color-border);background:var(--color-bg-elevated)}.mode-btn{padding:7px 12px;font-size:12px}.chat-messages{max-width:1000px;width:100%;align-self:center;padding:24px 32px}.chat-messages:has(.chat-welcome){display:flex;justify-content:safe center;align-items:center}.chat-messages:has(.chat-welcome)>.msg{display:none}.chat-welcome{width:min(850px,100%);padding:32px 18px 48px;text-align:center;margin:auto 0}.welcome-mark{width:60px;height:60px;display:grid;place-items:center;margin:0 auto 22px;border-radius:20px;color:#fff;font-size:26px;background:linear-gradient(135deg,#e66aa1,#7b62d5);box-shadow:0 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var(--ease-out)}.reel.tap-reveal .tap-hidden.revealed .tap-blur{opacity:0;pointer-events:none}.reel.tap-reveal .tap-content{font-family:var(--font-family-sans);font-size:var(--font-size-lg);line-height:var(--line-height-relaxed);color:var(--color-text-primary);position:relative;z-index:1;opacity:0;transition:opacity var(--duration-slow) var(--ease-out) var(--duration-normal)}.reel.tap-reveal .tap-hidden.revealed .tap-content{opacity:1}.reel.tap-reveal .tap-context{font-family:var(--font-family-sans);font-size:var(--font-size-sm);color:var(--color-text-secondary);margin-bottom:var(--space-4);max-width:40ch}.reel.tap-reveal .tap-hint{font-family:JetBrains Mono,monospace;font-size:var(--font-size-xs);color:var(--color-warning);animation:pulse var(--duration-slow) infinite}.reel.guess-first{text-align:center;display:flex;flex-direction:column;align-items:center;justify-content:center}.reel.guess-first 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0}.toggle-switch{position:relative;width:50px;height:26px}.toggle-switch input{display:none}.toggle-slider{position:absolute;top:0;left:0;right:0;bottom:0;background:var(--color-border);border-radius:13px;cursor:pointer;transition:background var(--duration-slow) var(--ease-out)}.toggle-slider:before{content:"";position:absolute;top:3px;left:3px;width:20px;height:20px;background:#fff;border-radius:var(--radius-full);transition:transform var(--duration-slow) var(--ease-out)}.toggle-switch input:checked+.toggle-slider{background:var(--color-brand-primary)}.toggle-switch input:checked+.toggle-slider:before{transform:translate(24px)}.btn{padding:var(--space-3) var(--space-6);border:none;border-radius:var(--radius-md);font-size:var(--font-size-base);font-weight:var(--font-weight-medium);cursor:pointer;transition:all var(--duration-normal) var(--ease-out)}.btn-primary{background:var(--color-brand-primary);color:#fff}.btn-primary:hover{opacity:.9}.btn-secondary{background:var(--color-bg-hover);color:var(--color-text-primary);border:1px solid var(--color-border)}.btn-secondary:hover{background:var(--color-border)}.btn-danger{background:var(--color-danger);color:#fff}.btn-danger:hover{opacity:.9}.btn:disabled{opacity:.6;cursor:not-allowed}.privacy-section,.storage-section,.about-section{display:flex;flex-direction:column;gap:var(--space-4)}.privacy-item,.storage-item{display:flex;justify-content:space-between;align-items:center;padding:var(--space-4);background:var(--color-bg-primary);border-radius:var(--radius-md);gap:var(--space-4)}@media (max-width: var(--breakpoint-lg)){.privacy-item,.storage-item{flex-direction:column;align-items:flex-start}}.privacy-info,.storage-info{flex:1}.privacy-info h4,.storage-info h4{font-size:var(--font-size-base);color:var(--color-text-primary);margin:0 0 var(--space-1) 0}.privacy-info p,.storage-info p{font-size:var(--font-size-sm);color:var(--color-text-secondary);margin:0}.storage-size,.sync-status,.pending-count{font-size:var(--font-size-xs);color:var(--color-text-secondary)}.about-item{padding:var(--space-4);background:var(--color-bg-primary);border-radius:var(--radius-md)}.about-item h4{font-size:var(--font-size-sm);color:var(--color-text-secondary);margin:0 0 var(--space-1) 0}.about-item p{font-size:var(--font-size-lg);color:var(--color-text-primary);margin:0}.about-links{display:flex;gap:var(--space-4);margin-top:var(--space-4)}.about-link{color:var(--color-brand-primary);text-decoration:none;font-size:var(--font-size-sm)}.about-link:hover{text-decoration:underline}.account-actions{margin-top:var(--space-8);padding-top:var(--space-8);border-top:1px solid var(--color-border)}.account-actions h4{font-size:var(--font-size-base);color:var(--color-text-primary);margin:0 0 var(--space-4) 0}.account-actions{display:flex;flex-direction:column;gap:var(--space-3)}.danger-zone{margin-top:var(--space-6);padding:var(--space-4);background:var(--color-danger-subtle);border:1px solid rgba(239,68,68,.3);border-radius:var(--radius-md)}.danger-zone h4{color:var(--color-danger);font-size:var(--font-size-sm);margin:0 0 var(--space-3) 0}#authContainer{position:fixed;top:0;left:0;right:0;bottom:0;display:flex;align-items:center;justify-content:center;background:var(--color-bg);z-index:var(--z-index-modal-backdrop);overflow-y:auto}.auth-screen{width:100%;max-width:400px;padding:var(--space-8);background:var(--color-bg-secondary);border-radius:var(--radius-lg);box-shadow:var(--shadow-xl)}.auth-header{text-align:center;margin-bottom:var(--space-8)}.auth-header h1{font-family:var(--font-family-serif);font-size:var(--font-size-3xl);margin-bottom:var(--space-2);color:var(--color-text-primary)}.auth-header p{color:var(--color-text-secondary);font-size:var(--font-size-sm)}.auth-form{display:flex;flex-direction:column;gap:var(--space-4)}.auth-field{display:flex;flex-direction:column;gap:var(--space-2)}.auth-field label{font-size:var(--font-size-sm);font-weight:var(--font-weight-medium);color:var(--color-text-secondary)}.auth-field input{padding:var(--space-3) var(--space-4);border:1px solid var(--color-border);border-radius:var(--radius-md);background:var(--color-bg-primary);color:var(--color-text-primary);font-size:var(--font-size-base);transition:border-color var(--duration-normal) var(--ease-out)}.auth-field input:focus{outline:none;border-color:var(--color-brand-primary)}.auth-field input:disabled{opacity:.6;cursor:not-allowed}.auth-hint{font-size:var(--font-size-xs);color:var(--color-text-secondary)}.auth-btn{padding:var(--space-3) var(--space-6);border:none;border-radius:var(--radius-md);background:var(--color-brand-primary);color:#fff;font-size:var(--font-size-md);font-weight:var(--font-weight-medium);cursor:pointer;transition:background var(--duration-normal) var(--ease-out),transform var(--duration-fast) var(--ease-out)}.auth-btn:hover:not(:disabled){background:var(--color-brand-hover)}.auth-btn:active:not(:disabled){transform:scale(.98)}.auth-btn:disabled{opacity:.6;cursor:not-allowed}.google-button-container{width:100%;min-height:50px;display:flex;align-items:center;justify-content:center;margin-top:var(--space-2)}.google-button-container>div{width:100%!important}.google-btn{background:#fff;color:#1a1a1a;display:flex;align-items:center;justify-content:center;gap:var(--space-3);height:var(--size-button-lg);border:1px solid #d1d5db;border-radius:var(--radius-xl);font-size:var(--font-size-base);font-weight:var(--font-weight-medium);font-family:var(--font-family-sans);cursor:pointer;transition:all var(--duration-normal) var(--ease-out);box-shadow:var(--shadow-xs);position:relative;overflow:hidden}.google-btn-content{display:flex;align-items:center;gap:var(--space-3)}.google-btn svg{flex-shrink:0}.google-btn:hover:not(:disabled){background:var(--color-bg-hover);border-color:var(--color-border-hover);box-shadow:var(--shadow-sm);transform:translateY(-1px)}.google-btn:active:not(:disabled){background:var(--color-bg-active);border-color:var(--color-border-focus);transform:translateY(0) scale(.98);box-shadow:var(--shadow-xs)}.google-btn:focus-visible{outline:2px solid #4285F4;outline-offset:2px;border-color:#4285f4}.google-btn:disabled{opacity:.6;cursor:not-allowed;background:var(--color-bg-disabled);border-color:var(--color-border-disabled)}.google-btn:disabled .google-btn-content{opacity:.7}.google-btn.loading{pointer-events:none}.google-btn.loading .google-btn-content{opacity:0;visibility:hidden}.google-btn.loading .btn-spinner{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);opacity:1;visibility:visible}.google-btn .btn-spinner{display:none;width:var(--size-icon-lg);height:var(--size-icon-lg);border:2px solid rgba(0,0,0,.1);border-top-color:#4285f4;border-radius:var(--radius-full);animation:spin .8s linear infinite}.auth-divider{display:flex;align-items:center;margin:var(--space-6) 0;color:var(--color-text-secondary);font-size:var(--font-size-sm)}.auth-divider:before,.auth-divider:after{content:"";flex:1;height:1px;background:var(--color-border)}.auth-divider span{padding:0 var(--space-4)}.auth-links{display:flex;align-items:center;justify-content:center;gap:var(--space-4);margin-top:var(--space-6);font-size:var(--font-size-sm)}.auth-links a{color:var(--color-brand-primary);text-decoration:none;transition:color var(--duration-normal) var(--ease-out)}.auth-links a:hover{color:var(--color-brand-hover)}.auth-link-divider{color:var(--color-text-secondary)}.auth-error{padding:var(--space-3) var(--space-4);background:var(--color-danger-subtle);border:1px solid rgba(239,68,68,.3);border-radius:var(--radius-md);color:var(--color-danger);font-size:var(--font-size-sm);margin-bottom:var(--space-4)}.auth-success{padding:var(--space-3) var(--space-4);background:var(--color-success-subtle);border:1px solid rgba(34,197,94,.3);border-radius:var(--radius-md);color:var(--color-success);font-size:var(--font-size-sm);margin-bottom:var(--space-4)}.field-error{display:none;color:var(--color-danger);font-size:var(--font-size-xs);margin-top:var(--space-1)}.field-error[style*="display: block"]{display:block!important}.auth-field input[aria-invalid=true]{border-color:var(--color-danger)}.password-input-wrapper{position:relative;display:flex;align-items:center}.password-input-wrapper input{flex:1;padding-right:var(--space-12)}.password-toggle{position:absolute;right:var(--space-3);background:none;border:none;padding:var(--space-1);cursor:pointer;color:var(--color-text-secondary);transition:color var(--duration-normal) var(--ease-out);display:flex;align-items:center;justify-content:center}.password-toggle:hover{color:var(--color-text-primary)}.password-toggle:focus{outline:none;color:var(--color-brand-primary)}.checkbox-field{flex-direction:row;align-items:center;gap:var(--space-3)}.checkbox-label{display:flex;align-items:center;gap:var(--space-2);cursor:pointer;font-size:var(--font-size-sm);color:var(--color-text-secondary)}.checkbox-label input[type=checkbox]{width:18px;height:18px;cursor:pointer;accent-color:var(--color-brand-primary)}.password-strength-container{margin-top:var(--space-2)}.password-strength-meter{height:4px;background:var(--color-border);border-radius:var(--radius-sm);overflow:hidden;margin-bottom:var(--space-2)}.password-strength-meter .strength-bar{height:100%;width:0%;transition:width var(--duration-slow) var(--ease-out),background var(--duration-slow) var(--ease-out)}.password-strength-meter.weak .strength-bar{width:20%;background:var(--color-danger)}.password-strength-meter.fair .strength-bar{width:40%;background:var(--color-warning)}.password-strength-meter.good .strength-bar{width:60%;background:var(--color-info)}.password-strength-meter.strong .strength-bar{width:80%;background:var(--color-success)}.password-strength-meter.excellent .strength-bar{width:100%;background:var(--color-info)}.strength-text{font-size:var(--font-size-xs);color:var(--color-text-secondary)}.password-checklist{display:flex;flex-direction:column;gap:var(--space-2);margin-top:var(--space-3);padding:var(--space-3);background:var(--color-bg-primary);border-radius:var(--radius-sm)}.password-check{display:flex;align-items:center;gap:var(--space-2);font-size:var(--font-size-xs);color:var(--color-text-secondary);opacity:.6;transition:opacity 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#countdownTimer{font-weight:var(--font-weight-semibold);color:var(--color-brand-primary)}@media (max-width: var(--breakpoint-sm)){.auth-screen{padding:var(--space-6);max-width:100%}.auth-header h1{font-size:var(--font-size-2xl)}.auth-btn{padding:var(--space-3) var(--space-5);font-size:var(--font-size-base)}.google-btn{height:var(--size-button-md);font-size:var(--font-size-sm)}.google-btn svg{width:var(--size-icon-md);height:var(--size-icon-md)}.password-checklist{padding:var(--space-2)}.password-check{font-size:var(--font-size-xs)}@media (max-width: 380px){.auth-screen{padding:var(--space-4)}}}@media (min-width: var(--breakpoint-sm)) and (max-width: var(--breakpoint-lg)){.auth-screen{max-width:450px;padding:var(--space-7)}.google-btn{height:var(--size-button-lg)}}.auth-field input:focus,.auth-field input:focus-visible{outline:2px solid var(--color-brand-primary);outline-offset:2px}.password-toggle:focus-visible{outline:2px solid var(--color-brand-primary);outline-offset:2px;border-radius:var(--radius-sm)}.auth-btn:focus-visible{outline:2px solid var(--color-brand-primary);outline-offset:2px}.auth-btn:disabled .btn-text{opacity:.8}.auth-btn:disabled .btn-spinner{display:inline-block}.auth-btn:not(:disabled) .btn-spinner{display:none}.settings-layout{display:flex;gap:2rem}.settings-nav{display:flex;flex-direction:column;gap:.5rem;min-width:200px}.nav-item{display:flex;align-items:center;gap:.75rem;padding:.75rem 1rem;border:none;background:transparent;color:var(--fg-dim);cursor:pointer;border-radius:8px;transition:all .2s;text-align:left}.nav-item:hover{background:var(--bg-secondary);color:var(--fg-primary)}.nav-item.active{background:var(--bg-secondary);color:var(--fg-primary);font-weight:500}.nav-icon{font-size:1.25rem}.nav-label{font-size:.9rem}.settings-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:2rem}.settings-header h2{font-family:Fraunces,serif;font-size:2rem;color:var(--fg-primary);margin:0}.close-btn{background:none;border:none;font-size:1.5rem;color:var(--color-text-secondary);cursor:pointer;transition:color var(--duration-normal) var(--ease-out)}.close-btn:hover{color:var(--color-text-primary)}.settings-form{display:flex;flex-direction:column;gap:1.25rem}.settings-field{display:flex;flex-direction:column;gap:.5rem}.settings-field label{font-size:.85rem;font-weight:500;color:var(--fg-secondary)}.settings-field input,.settings-field select{padding:.75rem 1rem;border:1px solid var(--border);border-radius:8px;background:var(--bg-primary);color:var(--fg-primary);font-size:.95rem;transition:border-color .2s}.settings-field input:focus,.settings-field select:focus{outline:none;border-color:var(--accent)}.settings-field 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h3{font-size:1rem;color:var(--fg-primary);margin-bottom:.5rem}.info-row{display:flex;justify-content:space-between;padding:.5rem 0;border-bottom:1px solid var(--border)}.info-row:last-child{border-bottom:none}.info-row span:first-child{color:var(--fg-dim);font-size:.9rem}.info-row span:last-child{color:var(--fg-primary);font-weight:500;font-size:.9rem}.status-badge{padding:.25rem .5rem;border-radius:4px;font-size:.75rem;font-weight:500}.account-actions{display:flex;flex-direction:column;gap:1rem}.account-actions h3{font-size:1rem;color:var(--fg-primary);margin-bottom:.5rem}.account-actions button{width:100%}#adminDashboard{position:fixed;top:0;left:0;right:0;bottom:0;display:flex;align-items:center;justify-content:center;background:#00000080;z-index:1000}.admin-section{width:90%;max-width:1200px;max-height:90vh;overflow-y:auto;padding:2rem;background:var(--bg-secondary);border-radius:12px;box-shadow:0 4px 20px 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.2s}.admin-nav-btn:hover{color:var(--fg-primary)}.admin-nav-btn.active{color:var(--accent);font-weight:500}.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:1rem;margin-bottom:2rem}.stat-card{padding:1.5rem;background:var(--bg-primary);border-radius:8px;text-align:center}.stat-value{font-size:2rem;font-weight:600;color:var(--accent);margin-bottom:.25rem}.stat-label{font-size:.85rem;color:var(--fg-dim)}.recent-sections{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:1.5rem}.recent-card{background:var(--bg-primary);border-radius:8px;padding:1.5rem}.recent-card h3{font-size:1rem;color:var(--fg-primary);margin-bottom:1rem}.recent-list{display:flex;flex-direction:column;gap:.75rem}.recent-item{display:flex;justify-content:space-between;align-items:center;padding:.5rem;background:var(--bg-secondary);border-radius:6px}.recent-user{display:flex;align-items:center;gap:.75rem}.recent-avatar,.recent-avatar-placeholder{width:32px;height:32px;border-radius:50%}.recent-avatar{object-fit:cover}.recent-avatar-placeholder{background:var(--accent);display:flex;align-items:center;justify-content:center;font-size:.85rem;font-weight:600;color:#fff}.recent-info{display:flex;flex-direction:column}.recent-name{font-size:.9rem;color:var(--fg-primary);font-weight:500}.recent-email,.recent-time{font-size:.75rem;color:var(--fg-dim)}.admin-controls{display:flex;gap:1rem;margin-bottom:1.5rem}.admin-search,.admin-filter{flex:1;padding:.75rem 1rem;border:1px solid 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.5rem;border-radius:4px;font-size:.75rem;font-weight:500}.status-badge.active{background:#22c55e1a;color:#22c55e}.status-badge.disabled{background:#ef44441a;color:#ef4444}.role-badge.user{background:#3b82f61a;color:#3b82f6}.role-badge.admin{background:#a855f71a;color:#a855f7}.user-actions{display:flex;gap:.25rem}.action-btn{padding:.25rem .5rem;border:none;background:transparent;cursor:pointer;font-size:1rem;transition:background .2s;border-radius:4px}.action-btn:hover{background:var(--bg-hover)}.analytics-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:1.5rem}.analytics-card{background:var(--bg-primary);border-radius:8px;padding:1.5rem}.analytics-card h3{font-size:1rem;color:var(--fg-primary);margin-bottom:1rem}.analytics-controls{margin-bottom:1.5rem}.analytics-chart{display:flex;flex-direction:column;gap:.5rem}.chart-bar{display:flex;align-items:center;gap:.5rem}.chart-label{flex:1;font-size:.85rem;color:var(--fg-secondary)}.chart-bar-fill{height:24px;background:var(--accent);border-radius:4px;min-width:4px;transition:width .3s}.chart-value{font-size:.85rem;color:var(--fg-primary);font-weight:500;min-width:40px;text-align:right}.admin-error{text-align:center;padding:3rem}.admin-error h2{color:#ef4444}.streak-overview{display:grid;grid-template-columns:repeat(auto-fit,minmax(120px,1fr));gap:1rem;margin-bottom:2rem}.streak-card{background:var(--bg-primary);border:1px solid var(--border);border-radius:12px;padding:1.5rem;text-align:center;transition:transform .2s,box-shadow .2s}.streak-card:hover{transform:translateY(-2px);box-shadow:0 4px 12px #0000001a}.streak-icon{font-size:2rem;margin-bottom:.5rem}.streak-value{font-size:2rem;font-weight:700;color:var(--fg-primary);margin-bottom:.25rem}.streak-label{font-size:.85rem;color:var(--fg-secondary);margin-bottom:.25rem}.streak-unit{font-size:.75rem;color:var(--fg-tertiary);text-transform:uppercase;letter-spacing:.05em}.streak-section{background:var(--bg-primary);border:1px solid var(--border);border-radius:12px;padding:1.5rem;margin-bottom:1.5rem}.streak-section-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:1rem;flex-wrap:wrap;gap:.5rem}.streak-section-header h4{margin:0;font-size:1rem;color:var(--fg-primary)}.streak-stats{display:flex;gap:.5rem;font-size:.85rem;color:var(--fg-secondary);align-items:center}.streak-calendar{margin-top:1rem}.calendar-header{display:grid;grid-template-columns:repeat(7,1fr);gap:.25rem;margin-bottom:.5rem}.calendar-day-name{text-align:center;font-size:.75rem;font-weight:600;color:var(--fg-tertiary);padding:.25rem;text-transform:uppercase}.calendar-grid{display:grid;grid-template-columns:repeat(7,1fr);gap:.25rem}.calendar-day{aspect-ratio:1;display:flex;flex-direction:column;align-items:center;justify-content:center;border-radius:8px;background:var(--bg-secondary);border:1px solid var(--border);cursor:default;transition:all .2s;position:relative;min-height:36px}.calendar-day:hover{transform:scale(1.05);z-index:1}.calendar-day-number{font-size:.85rem;font-weight:500;color:var(--fg-secondary)}.calendar-day-indicator{position:absolute;bottom:4px;width:6px;height:6px;border-radius:50%;background:linear-gradient(135deg,var(--color-brand-primary),var(--color-brand-secondary))}.calendar-day.active{background:color-mix(in srgb,var(--color-brand-primary) 10%,var(--bg-secondary));border-color:var(--color-brand-primary)}.calendar-day.active .calendar-day-number{color:var(--color-brand-primary);font-weight:600}.calendar-day.missed{background:color-mix(in srgb,#ef4444 8%,var(--bg-secondary));border-color:color-mix(in srgb,#ef4444 30%,var(--border))}.calendar-day.missed .calendar-day-number{color:#ef4444}.calendar-day.pre-install{background:var(--bg-secondary);border-color:var(--border);opacity:.5}.calendar-day.pre-install .calendar-day-number{color:var(--fg-tertiary)}.calendar-day.today{border:2px solid var(--color-brand-secondary);box-shadow:0 0 0 2px color-mix(in srgb,var(--color-brand-secondary) 20%,transparent)}.calendar-day.today.active{border-color:var(--color-brand-primary);box-shadow:0 0 0 2px color-mix(in srgb,var(--color-brand-primary) 20%,transparent)}.streak-legend{display:flex;gap:1.5rem;margin:1.5rem 0;flex-wrap:wrap}.legend-item{display:flex;align-items:center;gap:.5rem;font-size:.85rem;color:var(--fg-secondary)}.legend-color{width:16px;height:16px;border-radius:4px;border:1px solid var(--border)}.legend-color.active{background:color-mix(in srgb,var(--color-brand-primary) 10%,var(--bg-secondary));border-color:var(--color-brand-primary)}.legend-color.missed{background:color-mix(in srgb,#ef4444 8%,var(--bg-secondary));border-color:color-mix(in srgb,#ef4444 30%,var(--border))}.legend-color.pre-install{background:var(--bg-secondary);border-color:var(--border);opacity:.5}.legend-color.today{border:2px solid var(--color-brand-secondary);box-shadow:0 0 0 2px color-mix(in srgb,var(--color-brand-secondary) 20%,transparent)}.streak-info{background:color-mix(in srgb,var(--color-brand-primary) 5%,var(--bg-secondary));border-radius:8px;padding:1rem;font-size:.85rem;color:var(--fg-secondary);line-height:1.5}.streak-info strong{color:var(--fg-primary)}@media (max-width: 600px){.streak-overview{grid-template-columns:1fr}.streak-section-header{flex-direction:column;align-items:flex-start}.streak-stats{flex-wrap:wrap}.calendar-day{min-height:32px}.calendar-day-number{font-size:.75rem}.streak-legend{gap:1rem}}.admin-error p{color:var(--fg-dim)}.admin-loading,.recent-list .admin-loading,.analytics-chart .admin-loading,.no-data{text-align:center;color:var(--fg-dim);font-size:.85rem;padding:1rem}.settings-screen{max-width:none;margin:0;padding:clamp(1.5rem,3vw,3rem)}.settings-layout{display:grid;grid-template-columns:minmax(220px,280px) minmax(0,1fr);align-items:start;gap:clamp(1rem,3vw,2rem);min-height:calc(100vh - 10rem)}.settings-nav{position:sticky;top:var(--space-8);flex-direction:column;min-width:0;max-height:calc(100vh - var(--space-16));overflow-y:auto}.settings-content{width:100%;min-height:calc(100vh - 12rem)}@media (max-width: var(--breakpoint-lg)){.settings-layout{grid-template-columns:minmax(180px,220px) minmax(0,1fr)}.settings-nav{position:sticky;top:var(--space-4);flex-direction:column;max-height:calc(100vh - var(--space-8));overflow-y:auto;overflow-x:hidden;padding-bottom:0}}@media (max-width: 480px){.settings-screen{padding:var(--space-4)}.settings-layout{grid-template-columns:116px minmax(0,1fr);gap:var(--space-3)}.nav-item{gap:var(--space-2);padding:var(--space-3) var(--space-2)}.nav-icon{font-size:1rem}.nav-label{font-size:.75rem;overflow-wrap:anywhere}}.privacy-acceptance-screen{display:flex;align-items:center;justify-content:center;width:100%;height:100%;padding:var(--space-4);background:var(--color-bg)}.privacy-acceptance-content{width:100%;max-width:32rem;background:var(--color-surface);border-radius:var(--radius-xl);padding:clamp(2rem,5vw,3rem);box-shadow:0 .5rem 2rem color-mix(in srgb,var(--color-text-primary) 8%,transparent);animation:fadeSlideUp .4s var(--ease-out)}@keyframes fadeSlideUp{0%{opacity:0;transform:translateY(1rem)}to{opacity:1;transform:translateY(0)}}.privacy-header{text-align:center;margin-bottom:var(--space-6)}.privacy-icon{font-size:3rem;margin-bottom:var(--space-4)}.privacy-header h1{margin:0 0 var(--space-3);color:var(--color-text-primary);font:500 clamp(1.5rem,4vw,2rem)/1.1 var(--font-family-serif);letter-spacing:-.025em}.privacy-header p{margin:0;color:var(--color-text-secondary);font-size:var(--font-size-base);line-height:1.6}.privacy-summary{margin-bottom:var(--space-6);padding:var(--space-4);background:color-mix(in srgb,var(--color-brand-primary) 6%,transparent);border-radius:var(--radius-lg);border:1px solid color-mix(in srgb,var(--color-brand-primary) 12%,transparent)}.privacy-summary h2{margin:0 0 var(--space-3);color:var(--color-text-primary);font:600 var(--font-size-lg)/1.2 var(--font-family-sans);font-size:1rem}.privacy-summary-list{margin:0;padding:0;list-style:none}.privacy-summary-list li{position:relative;padding-left:var(--space-4);margin-bottom:var(--space-2);color:var(--color-text-secondary);font-size:var(--font-size-sm);line-height:1.5}.privacy-summary-list li:before{content:"•";position:absolute;left:0;color:var(--color-brand-primary);font-weight:600}.privacy-link-btn{display:flex;align-items:center;justify-content:center;gap:var(--space-2);width:100%;padding:var(--space-3);margin-bottom:var(--space-6);background:transparent;border:1px solid var(--color-border);border-radius:var(--radius-md);color:var(--color-brand-primary);font:500 var(--font-size-sm) var(--font-family-sans);cursor:pointer;transition:all var(--duration-fast) var(--ease-out)}.privacy-link-btn:hover{background:color-mix(in srgb,var(--color-brand-primary) 8%,transparent);border-color:var(--color-brand-primary)}.privacy-link-btn svg{flex-shrink:0}.privacy-agreement{margin-bottom:var(--space-6)}.privacy-checkbox-label{display:flex;align-items:flex-start;gap:var(--space-3);cursor:pointer;-webkit-user-select:none;user-select:none}.privacy-checkbox-label input[type=checkbox]{position:absolute;opacity:0;width:0;height:0}.checkbox-custom{position:relative;flex-shrink:0;width:1.25rem;height:1.25rem;margin-top:.125rem;background:var(--color-surface);border:2px solid var(--color-border);border-radius:var(--radius-sm);transition:all var(--duration-fast) var(--ease-out)}.privacy-checkbox-label input[type=checkbox]:checked+.checkbox-custom{background:var(--color-brand-primary);border-color:var(--color-brand-primary)}.privacy-checkbox-label input[type=checkbox]:checked+.checkbox-custom:after{content:"✓";position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);color:#fff;font-size:.75rem;font-weight:600}.checkbox-text{color:var(--color-text-primary);font-size:var(--font-size-sm);line-height:1.5}.privacy-continue-btn{width:100%;padding:var(--space-4);background:linear-gradient(135deg,var(--color-brand-primary),var(--color-brand-secondary));border:none;border-radius:var(--radius-md);color:#fff;font:600 var(--font-size-base) var(--font-family-sans);cursor:pointer;transition:all var(--duration-fast) var(--ease-out)}.privacy-continue-btn:hover:not(:disabled){transform:translateY(-.125rem);box-shadow:0 .5rem 1rem color-mix(in srgb,var(--color-brand-primary) 24%,transparent)}.privacy-continue-btn:disabled{opacity:.5;cursor:not-allowed}.privacy-error{padding:var(--space-3);margin-bottom:var(--space-4);background:color-mix(in srgb,var(--color-error) 12%,transparent);border:1px solid color-mix(in srgb,var(--color-error) 24%,transparent);border-radius:var(--radius-md);color:var(--color-error);font-size:var(--font-size-sm);text-align:center}.privacy-policy-page{width:100%;min-height:100%;padding:var(--space-4);background:var(--color-bg);overflow-y:auto}.privacy-policy-content{max-width:48rem;margin:0 auto;background:var(--color-surface);border-radius:var(--radius-xl);padding:clamp(2rem,5vw,4rem);box-shadow:0 .5rem 2rem color-mix(in srgb,var(--color-text-primary) 8%,transparent)}.privacy-policy-header{position:relative;margin-bottom:var(--space-8);padding-bottom:var(--space-6);border-bottom:1px solid var(--color-border)}.privacy-policy-header .close-btn{position:absolute;top:0;right:0;width:2.5rem;height:2.5rem;display:flex;align-items:center;justify-content:center;background:transparent;border:none;border-radius:var(--radius-md);color:var(--color-text-secondary);font-size:1.25rem;cursor:pointer;transition:all var(--duration-fast) var(--ease-out)}.privacy-policy-header .close-btn:hover{background:color-mix(in srgb,var(--color-text-secondary) 8%,transparent);color:var(--color-text-primary)}.privacy-policy-header h1{margin:0 0 var(--space-2);color:var(--color-text-primary);font:500 clamp(1.75rem,4vw,2.5rem)/1.1 var(--font-family-serif);letter-spacing:-.03em}.policy-meta{color:var(--color-text-secondary);font-size:var(--font-size-sm)}.policy-intro{margin-bottom:var(--space-8)}.policy-intro p{margin-bottom:var(--space-4);color:var(--color-text-secondary);font-size:var(--font-size-base);line-height:1.7}.policy-section{margin-bottom:var(--space-8)}.policy-section h2{margin:0 0 var(--space-4);color:var(--color-text-primary);font:600 var(--font-size-xl)/1.2 var(--font-family-sans);letter-spacing:-.02em}.policy-section h3{margin:var(--space-6) 0 var(--space-3);color:var(--color-text-primary);font:600 var(--font-size-lg)/1.2 var(--font-family-sans)}.policy-section p{margin-bottom:var(--space-4);color:var(--color-text-secondary);font-size:var(--font-size-base);line-height:1.7}.policy-section ul{margin:var(--space-4) 0;padding-left:var(--space-6);color:var(--color-text-secondary);font-size:var(--font-size-base);line-height:1.7}.policy-section li{margin-bottom:var(--space-2)}.policy-section strong{color:var(--color-text-primary);font-weight:600}.contact-info{padding:var(--space-4);background:color-mix(in srgb,var(--color-brand-primary) 6%,transparent);border-radius:var(--radius-lg);border:1px solid color-mix(in srgb,var(--color-brand-primary) 12%,transparent)}.contact-info p{margin:var(--space-2) 0;color:var(--color-text-secondary);font-size:var(--font-size-base)}.policy-disclaimer{padding:var(--space-4);background:color-mix(in srgb,var(--color-text-secondary) 6%,transparent);border-radius:var(--radius-lg);border:1px solid color-mix(in srgb,var(--color-text-secondary) 12%,transparent)}.policy-disclaimer p{margin:0;color:var(--color-text-secondary);font-size:var(--font-size-sm);line-height:1.6;font-style:italic}@media (max-width: var(--breakpoint-md)){.privacy-acceptance-content,.privacy-policy-content{padding:var(--space-5)}.privacy-policy-header h1{padding-right:3rem}}@media (max-width: 480px){.privacy-acceptance-content,.privacy-policy-content{padding:var(--space-4)}.privacy-summary-list li{font-size:.875rem}.policy-section h2{font-size:1.25rem}.policy-section h3{font-size:1.125rem}}.legal-section{display:flex;flex-direction:column;gap:var(--space-4)}.legal-item{display:flex;align-items:center;justify-content:space-between;padding:var(--space-4);background:color-mix(in srgb,var(--color-surface) 50%,transparent);border:1px solid var(--color-border);border-radius:var(--radius-lg);gap:var(--space-4)}.legal-info{flex:1}.legal-info h4{margin:0 0 var(--space-1);color:var(--color-text-primary);font:600 var(--font-size-base) var(--font-family-sans)}.legal-info p{margin:0;color:var(--color-text-secondary);font-size:var(--font-size-sm);line-height:1.5}.legal-item .btn{flex-shrink:0}@media (max-width: var(--breakpoint-md)){.legal-item{flex-direction:column;align-items:flex-start}.legal-item .btn{width:100%}}.error-state{padding:var(--space-6);border-radius:var(--radius-lg);background:var(--color-error-bg);border:1px solid var(--color-error-border);text-align:center}.error-state-icon{font-size:48px;margin-bottom:var(--space-4);color:var(--color-error-primary)}.error-state-title{font-size:var(--font-size-lg);font-weight:var(--font-weight-semibold);color:var(--color-error-primary);margin-bottom:var(--space-2)}.error-state-message{font-size:var(--font-size-sm);color:var(--color-error-text);margin-bottom:var(--space-4);max-width:400px;margin-left:auto;margin-right:auto}.error-state-actions{display:flex;gap:var(--space-3);justify-content:center;flex-wrap:wrap}.error-state-btn{padding:var(--space-2) var(--space-4);border-radius:var(--radius-md);font-size:var(--font-size-sm);font-weight:var(--font-weight-medium);cursor:pointer;transition:all var(--duration-fast) var(--easing-default)}.error-state-btn-primary{background:var(--color-error-primary);color:var(--color-text-inverse);border:none}.error-state-btn-primary:hover{background:var(--color-error-dark);transform:translateY(-1px)}.error-state-btn-secondary{background:transparent;color:var(--color-error-primary);border:1px solid var(--color-error-primary)}.error-state-btn-secondary:hover{background:var(--color-error-bg)}.error-message{padding:var(--space-3) var(--space-4);border-radius:var(--radius-md);background:var(--color-error-bg);border-left:4px solid var(--color-error-primary);color:var(--color-error-text);font-size:var(--font-size-sm);margin-bottom:var(--space-3);display:flex;align-items:center;gap:var(--space-3)}.error-message-icon{flex-shrink:0;color:var(--color-error-primary)}.error-message-content{flex:1}.error-message-title{font-weight:var(--font-weight-semibold);margin-bottom:var(--space-1)}.error-message-text{color:var(--color-error-text);opacity:.9}.error-message-close{flex-shrink:0;background:none;border:none;color:var(--color-error-text);cursor:pointer;padding:var(--space-1);opacity:.6;transition:opacity var(--duration-fast) var(--easing-default)}.error-message-close:hover{opacity:1}.error-alert{position:fixed;top:var(--space-4);right:var(--space-4);max-width:400px;padding:var(--space-4);border-radius:var(--radius-md);background:var(--color-error-bg);border:1px solid var(--color-error-border);box-shadow:0 4px 12px #00000026;z-index:2000;animation:slideIn .3s ease-out}@keyframes slideIn{0%{transform:translate(100%);opacity:0}to{transform:translate(0);opacity:1}}.error-alert-header{display:flex;align-items:center;gap:var(--space-3);margin-bottom:var(--space-2)}.error-alert-icon{color:var(--color-error-primary);font-size:20px}.error-alert-title{font-weight:var(--font-weight-semibold);color:var(--color-error-primary);flex:1}.error-alert-close{background:none;border:none;color:var(--color-error-text);cursor:pointer;padding:var(--space-1);opacity:.6}.error-alert-close:hover{opacity:1}.error-alert-body{font-size:var(--font-size-sm);color:var(--color-error-text);margin-bottom:var(--space-3)}.error-alert-actions{display:flex;gap:var(--space-2);justify-content:flex-end}.input-error{border-color:var(--color-error-primary)!important}.input-error:focus{outline:none;box-shadow:0 0 0 3px #ef44441a}.input-error-message{font-size:var(--font-size-xs);color:var(--color-error-primary);margin-top:var(--space-1)}.error-card{padding:var(--space-4);border-radius:var(--radius-md);background:var(--color-error-bg);border:1px solid var(--color-error-border)}.error-card-header{display:flex;align-items:center;gap:var(--space-3);margin-bottom:var(--space-3)}.error-card-icon{color:var(--color-error-primary);font-size:24px}.error-card-title{font-weight:var(--font-weight-semibold);color:var(--color-error-primary)}.error-card-body{font-size:var(--font-size-sm);color:var(--color-error-text);margin-bottom:var(--space-4)}.error-card-footer{display:flex;gap:var(--space-2);justify-content:flex-end}.empty-state{padding:var(--space-8);border-radius:var(--radius-lg);text-align:center;background:var(--color-surface-secondary)}.empty-state-icon{font-size:64px;margin-bottom:var(--space-4);color:var(--color-text-tertiary)}.empty-state-title{font-size:var(--font-size-lg);font-weight:var(--font-weight-semibold);color:var(--color-text-primary);margin-bottom:var(--space-2)}.empty-state-message{font-size:var(--font-size-sm);color:var(--color-text-secondary);margin-bottom:var(--space-4);max-width:350px;margin-left:auto;margin-right:auto}.empty-state-actions{display:flex;gap:var(--space-3);justify-content:center;flex-wrap:wrap}.empty-state-btn{padding:var(--space-2) var(--space-4);border-radius:var(--radius-md);font-size:var(--font-size-sm);font-weight:var(--font-weight-medium);cursor:pointer;transition:all var(--duration-fast) var(--easing-default)}.empty-state-btn-primary{background:linear-gradient(135deg,var(--color-brand-primary) 0%,var(--color-brand-secondary) 100%);color:var(--color-text-inverse);border:none}.empty-state-btn-primary:hover{transform:translateY(-1px);box-shadow:0 4px 12px #8b5cf666}.empty-state-btn-secondary{background:transparent;color:var(--color-text-primary);border:1px solid var(--color-border)}.empty-state-btn-secondary:hover{background:var(--color-surface-tertiary)}.empty-conversations{padding:var(--space-8);text-align:center}.empty-conversations-icon{font-size:48px;margin-bottom:var(--space-4);color:var(--color-text-tertiary)}.empty-conversations-title{font-size:var(--font-size-md);font-weight:var(--font-weight-semibold);color:var(--color-text-primary);margin-bottom:var(--space-2)}.empty-conversations-message{font-size:var(--font-size-sm);color:var(--color-text-secondary);margin-bottom:var(--space-4)}.empty-reels{padding:var(--space-8);text-align:center}.empty-reels-icon{font-size:48px;margin-bottom:var(--space-4);color:var(--color-text-tertiary)}.empty-reels-title{font-size:var(--font-size-md);font-weight:var(--font-weight-semibold);color:var(--color-text-primary);margin-bottom:var(--space-2)}.empty-reels-message{font-size:var(--font-size-sm);color:var(--color-text-secondary);margin-bottom:var(--space-4)}.empty-courses{padding:var(--space-8);text-align:center}.empty-courses-icon{font-size:48px;margin-bottom:var(--space-4);color:var(--color-text-tertiary)}.empty-courses-title{font-size:var(--font-size-md);font-weight:var(--font-weight-semibold);color:var(--color-text-primary);margin-bottom:var(--space-2)}.empty-courses-message{font-size:var(--font-size-sm);color:var(--color-text-secondary);margin-bottom:var(--space-4)}.empty-documents{padding:var(--space-6);border:2px 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var(--easing-default)}.empty-documents:hover{border-color:var(--color-brand-primary);background:var(--color-surface-tertiary)}.empty-documents-icon{font-size:32px;margin-bottom:var(--space-3);color:var(--color-text-tertiary)}.empty-documents-title{font-size:var(--font-size-sm);font-weight:var(--font-weight-semibold);color:var(--color-text-primary);margin-bottom:var(--space-1)}.empty-documents-message{font-size:var(--font-size-xs);color:var(--color-text-secondary)}.empty-inline{padding:var(--space-4);text-align:center;color:var(--color-text-tertiary)}.empty-inline-icon{font-size:24px;margin-bottom:var(--space-2)}.empty-inline-text{font-size:var(--font-size-sm)}.empty-card{padding:var(--space-6);border-radius:var(--radius-md);background:var(--color-surface-secondary);text-align:center}.empty-card-icon{font-size:32px;margin-bottom:var(--space-3);color:var(--color-text-tertiary)}.empty-card-title{font-size:var(--font-size-sm);font-weight:var(--font-weight-semibold);color:var(--color-text-primary);margin-bottom:var(--space-2)}.empty-card-message{font-size:var(--font-size-xs);color:var(--color-text-secondary)}