:root{--surface-0: #07070a;--surface-1: #0d0d12;--surface-2: #13131a;--surface-3: #1a1a24;--surface-4: #22222e;--glass-bg: rgba(255, 255, 255, .04);--glass-bg-hover: rgba(255, 255, 255, .07);--glass-border: rgba(255, 255, 255, .08);--glass-border-hover: rgba(255, 255, 255, .14);--text-primary: rgba(255, 255, 255, .95);--text-secondary: rgba(255, 255, 255, .68);--text-tertiary: rgba(255, 255, 255, .42);--text-inverse: #07070a;--accent-1: #7c5cfc;--accent-2: #5e8bff;--accent-gradient: linear-gradient(135deg, var(--accent-1), var(--accent-2));--accent-glow: rgba(124, 92, 252, .25);--accent-glow-strong: rgba(124, 92, 252, .45);--success: #34d399;--success-bg: rgba(52, 211, 153, .1);--success-border: rgba(52, 211, 153, .22);--error: #f87171;--error-bg: rgba(248, 113, 113, .1);--error-border: rgba(248, 113, 113, .22);--info: #60a5fa;--info-bg: rgba(96, 165, 250, .1);--info-border: rgba(96, 165, 250, .22);--warning: #fbbf24;--space-1: 4px;--space-2: 8px;--space-3: 12px;--space-4: 16px;--space-5: 20px;--space-6: 24px;--space-7: 28px;--space-8: 32px;--space-10: 40px;--space-12: 48px;--space-16: 64px;--font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;--font-mono: "SF Mono", "Fira Code", monospace;--text-xs: .75rem;--text-sm: .8125rem;--text-base: .875rem;--text-md: .9375rem;--text-lg: 1.0625rem;--text-xl: 1.25rem;--text-2xl: 1.625rem;--text-3xl: 2rem;--leading-tight: 1.2;--leading-normal: 1.5;--radius-sm: 8px;--radius-md: 12px;--radius-lg: 16px;--radius-xl: 20px;--radius-full: 999px;--shadow-sm: 0 1px 2px rgba(0, 0, 0, .3);--shadow-md: 0 4px 16px rgba(0, 0, 0, .4);--shadow-lg: 0 8px 32px rgba(0, 0, 0, .5);--shadow-xl: 0 16px 48px rgba(0, 0, 0, .6);--shadow-glow: 0 0 24px var(--accent-glow);--ease-out: cubic-bezier(.16, 1, .3, 1);--ease-spring: cubic-bezier(.34, 1.56, .64, 1);--duration-fast: .12s;--duration-normal: .2s;--duration-slow: .35s;--z-base: 1;--z-overlay: 10;--z-sticky: 20;--z-nav: 30;--z-modal: 40;--z-toast: 50;--nav-height: 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var(--ease-spring);color:#fff}.ui-checkbox-input:checked+.ui-checkbox-box{background:var(--accent-1);border-color:var(--accent-1)}.ui-checkbox-input:checked+.ui-checkbox-box svg{opacity:1;transform:scale(1)}.ui-checkbox-input:focus-visible+.ui-checkbox-box{outline:2px solid var(--accent-1);outline-offset:2px}.ui-checkbox-label{font-weight:500;font-size:var(--text-sm);color:var(--text-secondary)}.password-strength{display:flex;align-items:center;gap:var(--space-2);margin-top:var(--space-2)}.password-strength-track{display:flex;gap:3px;flex:1}.password-strength-segment{height:4px;flex:1;border-radius:2px;transition:background var(--duration-normal) var(--ease-out)}.password-strength-label{font-size:var(--text-xs);font-weight:600;min-width:50px;text-align:right}.ui-card{border-radius:var(--radius-lg);border:1px solid var(--glass-border);background:var(--glass-bg);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);padding:var(--space-6);animation:scaleIn var(--duration-slow) 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var(--accent-glow)}.bottom-nav-item:disabled{opacity:.4;cursor:default}.bottom-nav-tooltip-wrapper{position:relative;display:flex;flex-direction:column;align-items:center}.bottom-nav-tooltip{position:absolute;top:-32px;white-space:nowrap;font-size:10px;font-weight:600;letter-spacing:.05em;text-transform:uppercase;color:var(--text-primary);background:var(--surface-3);border:1px solid var(--glass-border);padding:3px 8px;border-radius:var(--radius-sm);box-shadow:var(--shadow-md);opacity:0;pointer-events:none;transition:opacity var(--duration-normal)}.bottom-nav-tooltip-wrapper:hover .bottom-nav-tooltip{opacity:1}.profile-fab{position:fixed;bottom:calc(env(safe-area-inset-bottom,0px) + 72px);right:var(--space-4);width:52px;height:52px;display:flex;align-items:center;justify-content:center;background:var(--accent-gradient);border:none;border-radius:50%;color:#fff;cursor:pointer;z-index:90;box-shadow:0 4px 16px var(--accent-glow);transition:transform var(--duration-fast),box-shadow 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var(--glass-border);border-radius:var(--radius-lg);color:var(--text-primary);font-size:var(--text-base);font-family:inherit;resize:none;min-height:100px;transition:all var(--duration-normal)}.create-caption-input::placeholder{color:var(--text-tertiary)}.create-caption-input:focus{outline:none;border-color:var(--accent-1);background:var(--surface-1);box-shadow:0 0 0 3px var(--accent-glow)}.create-caption-count{position:absolute;bottom:var(--space-3);right:var(--space-4);font-size:11px;font-weight:600;color:var(--text-tertiary)}.create-error{width:100%;padding:var(--space-3) var(--space-4);background:var(--error-bg);border:1px solid var(--error-border);border-radius:var(--radius-md);color:var(--error);font-size:var(--text-sm);font-weight:500;text-align:center}.create-upload-btn{width:100%;padding:var(--space-4);background:var(--accent-gradient);color:#fff;border:none;border-radius:var(--radius-full);font-size:var(--text-md);font-weight:700;cursor:pointer;box-shadow:0 4px 12px var(--accent-glow);transition:all var(--duration-normal) var(--ease-spring)}.create-upload-btn:hover{transform:translateY(-2px);box-shadow:0 6px 20px var(--accent-glow-strong)}.create-upload-btn:active{transform:translateY(1px)}.create-upload-btn:disabled{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none}.create-uploading{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:var(--space-4);padding:var(--space-16) var(--space-8);width:100%;animation:fadeIn .3s var(--ease-out)}.create-uploading-spinner{width:48px;height:48px;border:3.5px solid var(--glass-border);border-top-color:var(--accent-1);border-radius:50%;animation:spin .8s linear 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var(--ease-spring);overflow:hidden}.profile-avatar-img{width:100%;height:100%;object-fit:cover;border-radius:50%}.profile-avatar-uploading{position:absolute;top:0;right:0;bottom:0;left:0;display:flex;align-items:center;justify-content:center;background:#00000080;border-radius:50%}.profile-avatar-camera{position:absolute;bottom:2px;right:2px;width:28px;height:28px;border-radius:50%;background:var(--surface-elevated);border:2px solid var(--surface-base);display:flex;align-items:center;justify-content:center;color:var(--text-secondary);transition:all var(--duration-fast)}.profile-avatar-upload-btn:hover 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var(--duration-fast)}.settings-back-btn:hover{background:var(--glass-bg-hover);color:var(--text-primary)}.settings-header-title{font-size:var(--text-lg);font-weight:700;color:var(--text-primary)}.settings-header-spacer{width:36px}.settings-content{max-width:480px;margin:0 auto;padding:0 var(--space-4) var(--space-16)}.profile-settings-panel{max-width:480px;margin:0 auto;padding:var(--space-2) var(--space-4) var(--space-16);animation:slideUp .25s var(--ease-out)}.profile-settings-section{margin-bottom:var(--space-5)}.profile-settings-heading{font-size:var(--text-xs);font-weight:600;color:var(--text-tertiary);text-transform:uppercase;letter-spacing:.06em;padding:0 var(--space-2) var(--space-2)}.profile-settings-card{background:var(--glass-bg);border:1px solid var(--glass-border);border-radius:var(--radius-lg);overflow:hidden}.profile-settings-row{display:flex;align-items:center;justify-content:space-between;padding:var(--space-3) var(--space-4);min-height:44px}.profile-settings-row-label{font-size:var(--text-sm);color:var(--text-primary);font-weight:500}.profile-settings-row-value{font-size:var(--text-sm);color:var(--text-tertiary);text-align:right;max-width:60%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.profile-settings-mono{font-family:SF Mono,Fira Code,Cascadia Code,monospace;font-size:12px;letter-spacing:.02em}.profile-settings-divider{height:1px;background:var(--glass-border);margin:0 var(--space-4)}.profile-signout-btn{width:100%;display:flex;align-items:center;justify-content:center;gap:var(--space-2);padding:var(--space-3) var(--space-4);min-height:48px;background:var(--glass-bg);border:1px solid var(--glass-border);border-radius:var(--radius-lg);color:var(--error);font-size:var(--text-sm);font-weight:600;font-family:var(--font-sans);cursor:pointer;transition:all var(--duration-fast)}.profile-signout-btn:hover{background:#ef444414;border-color:#ef444440}.profile-signout-btn:active{transform:scale(.98)}.profile-container{display:flex;flex-direction:column;align-items:center;justify-content:center;flex:1;padding:var(--space-6) var(--space-4)}.profile-card{width:100%;max-width:400px;text-align:center;padding:var(--space-10) var(--space-8)}.profile-section{border-top:1px solid var(--glass-border);padding-top:var(--space-6);margin-top:var(--space-2)}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.error-boundary{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:var(--space-6);background:var(--surface-0)}.error-boundary-card{width:100%;max-width:420px;text-align:center;padding:var(--space-10) var(--space-8)}.error-boundary-icon{width:64px;height:64px;border-radius:50%;background:var(--error-bg);border:2px solid var(--error-border);display:flex;align-items:center;justify-content:center;margin:0 auto var(--space-5);font-size:28px;animation:scaleIn .4s var(--ease-spring)}.error-boundary-title{font-size:var(--text-xl);font-weight:700;margin-bottom:var(--space-3);color:var(--text-primary)}.error-boundary-message{font-size:var(--text-sm);color:var(--text-tertiary);margin-bottom:var(--space-6);line-height:var(--leading-normal);font-family:var(--font-mono);padding:var(--space-3);background:var(--surface-2);border-radius:var(--radius-sm);word-break:break-word}.error-boundary-actions{display:flex;gap:var(--space-3);justify-content:center}.ui-button:focus-visible,.ui-input:focus-visible,.ui-link:focus-visible,.shorts-action-btn:focus-visible,.bottom-nav-item:focus-visible{outline:2px solid var(--accent-1);outline-offset:2px}@media (min-width: 768px){.auth-card{padding:var(--space-10)}.shorts-actions{right:var(--space-5)}}.ui-toast{position:absolute;bottom:100px;left:50%;transform:translate(-50%);z-index:9999;display:flex;align-items:center;gap:var(--space-2);padding:var(--space-2) var(--space-4);background:#0a0a0fe6;backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border:1px solid var(--glass-border-hover);border-radius:var(--radius-full);color:var(--text-primary);font-size:var(--text-sm);font-weight:600;white-space:nowrap;box-shadow:0 4px 24px #0006;animation:toastSlideUp .3s var(--ease-spring),toastFadeOut .3s 1.7s ease forwards;pointer-events:none}.ui-toast-icon{color:var(--success, #22c55e);font-size:var(--text-base)}@keyframes toastSlideUp{0%{opacity:0;transform:translate(-50%) translateY(12px)}to{opacity:1;transform:translate(-50%) translateY(0)}}@keyframes toastFadeOut{to{opacity:0;transform:translate(-50%) translateY(-8px)}}.shorts-action-btn--shared{animation:sharePulse .6s ease}@keyframes sharePulse{0%{transform:scale(1)}25%{transform:scale(1.2);color:var(--accent-1)}50%{transform:scale(.95)}to{transform:scale(1)}}.shorts-action-btn--views{cursor:default;pointer-events:none;opacity:.9}.modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#0009;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);z-index:var(--z-modal);display:flex;align-items:center;justify-content:center;animation:fadeIn var(--duration-normal) var(--ease-out)}.modal-content{background:var(--surface-2);border:1px solid var(--glass-border);border-radius:var(--radius-xl);padding:var(--space-6);width:90%;max-width:320px;box-shadow:var(--shadow-xl);animation:scaleIn var(--duration-normal) var(--ease-out)}.confirm-title{font-size:var(--text-lg);font-weight:700;margin-bottom:var(--space-2);color:var(--text-primary)}.confirm-message{font-size:var(--text-sm);color:var(--text-secondary);line-height:var(--leading-normal);margin-bottom:var(--space-6)}.confirm-actions{display:flex;gap:var(--space-3);justify-content:flex-end}.btn-secondary,.btn-primary{padding:var(--space-2) var(--space-4);border-radius:var(--radius-full);font-size:var(--text-sm);font-weight:600;cursor:pointer;border:none;transition:opacity var(--duration-fast)}.btn-secondary{background:transparent;color:var(--text-secondary)}.btn-secondary:hover{color:var(--text-primary);background:var(--surface-3)}.btn-primary{background:var(--text-primary);color:var(--surface-0)}.btn-primary.btn-danger{background:var(--error);color:#fff}.btn-primary:hover{opacity:.9}.sheet-overlay{align-items:flex-end}.action-sheet{background:var(--surface-1);border-top:1px solid var(--glass-border);border-radius:var(--radius-xl) var(--radius-xl) 0 0;width:100%;max-width:500px;margin:0 auto;padding:var(--space-2) var(--space-4) var(--space-8);box-shadow:var(--shadow-xl);animation:slideUpSheet var(--duration-normal) var(--ease-out)}@keyframes slideUpSheet{0%{transform:translateY(100%)}to{transform:translateY(0)}}.sheet-handle-bar{display:flex;justify-content:center;padding:var(--space-3) 0;margin-bottom:var(--space-2)}.sheet-handle{width:36px;height:4px;background:var(--surface-3);border-radius:var(--radius-full)}.sheet-actions{display:flex;flex-direction:column;gap:var(--space-1)}.sheet-action-btn{display:flex;align-items:center;gap:var(--space-4);width:100%;padding:var(--space-4);background:transparent;border:none;color:var(--text-primary);font-size:var(--text-base);font-weight:500;text-align:left;border-radius:var(--radius-lg);transition:background var(--duration-fast)}.sheet-action-btn:hover{background:var(--surface-2)}.sheet-action-icon{color:var(--text-secondary);display:flex}.sheet-action-btn.destructive,.sheet-action-btn.destructive .sheet-action-icon{color:var(--error)}.sheet-cancel{margin-top:var(--space-4);padding-top:var(--space-2);border-top:1px solid var(--surface-2)}.sheet-action-btn.cancel{justify-content:center;font-weight:600}@media (min-width: 640px){.sheet-overlay{align-items:center;justify-content:center}.action-sheet{border-radius:var(--radius-xl);width:90%;margin:0;padding-bottom:var(--space-4)}}.shorts-media-wrapper{position:relative;width:100%;height:100%;background:#000;overflow:hidden}.shorts-media-bg{position:absolute;top:-20px;right:-20px;bottom:-20px;left:-20px;width:calc(100% + 40px);height:calc(100% + 40px);object-fit:cover;filter:blur(24px) brightness(.6);z-index:0;opacity:.8;transform:translateZ(0)}.shorts-media-fg{position:relative;width:100%;height:100%;object-fit:contain;z-index:1;background:transparent;transform:translateZ(0);box-shadow:0 0 40px #0000004d}.shorts-video.shorts-media-fg{background:transparent}