.navigation{position:fixed;bottom:0;left:0;right:0;z-index:var(--z-sticky);background:var(--color-bg-glass);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border-top:1px solid var(--color-border-secondary);padding-bottom:var(--safe-area-bottom)}.nav-container{display:flex;align-items:center;justify-content:space-around;max-width:var(--max-width);margin:0 auto;padding:var(--spacing-2) var(--spacing-4)}.nav-item{display:flex;flex-direction:column;align-items:center;gap:var(--spacing-1);padding:var(--spacing-2) var(--spacing-4);color:var(--color-text-muted);text-decoration:none;transition:all var(--transition-fast);border-radius:var(--radius-lg);position:relative}.nav-item:hover{color:var(--color-text-secondary)}.nav-item-active{color:var(--color-text-primary)}.nav-icon-wrapper{position:relative;display:flex;align-items:center;justify-content:center}.nav-icon{width:24px;height:24px;transition:transform var(--transition-fast)}.nav-item:active .nav-icon{transform:scale(.9)}.nav-item-active .nav-icon{transform:scale(1.1)}.nav-indicator{position:absolute;bottom:-6px;left:50%;transform:translate(-50%) scale(0);width:4px;height:4px;background:var(--color-accent-primary);border-radius:50%;transition:transform var(--transition-spring)}.nav-item-active .nav-indicator{transform:translate(-50%) scale(1)}.nav-label{font-size:var(--font-size-xs);font-weight:var(--font-weight-medium)}.nav-item:nth-child(3) .nav-icon-wrapper{background:var(--color-accent-gradient);padding:var(--spacing-2);border-radius:var(--radius-lg);box-shadow:var(--shadow-md)}.nav-item:nth-child(3) .nav-icon{color:#fff;width:20px;height:20px}.nav-item:nth-child(3):hover .nav-icon-wrapper{box-shadow:var(--shadow-glow)}.nav-item:nth-child(3) .nav-indicator{display:none}.btn{display:inline-flex;align-items:center;justify-content:center;gap:var(--spacing-2);font-weight:var(--font-weight-semibold);border-radius:var(--radius-lg);transition:all var(--transition-fast);position:relative;overflow:hidden;cursor:pointer;white-space:nowrap}.btn:before{content:"";position:absolute;top:50%;left:50%;width:0;height:0;background:#fff3;border-radius:50%;transform:translate(-50%,-50%);transition:width .4s ease,height .4s ease}.btn:active:before{width:300px;height:300px}.btn-primary{background:var(--color-accent-gradient);color:var(--color-text-primary);box-shadow:var(--shadow-md)}.btn-primary:hover{box-shadow:var(--shadow-glow);transform:translateY(-1px)}.btn-primary:active{transform:translateY(0)}.btn-secondary{background:var(--color-bg-elevated);color:var(--color-text-primary);border:1px solid var(--color-border-primary)}.btn-secondary:hover{background:var(--color-bg-tertiary);border-color:var(--color-border-focus)}.btn-ghost{background:transparent;color:var(--color-text-secondary)}.btn-ghost:hover{background:var(--color-bg-tertiary);color:var(--color-text-primary)}.btn-danger{background:var(--color-error);color:var(--color-text-primary)}.btn-danger:hover{background:#dc2626}.btn-sm{padding:var(--spacing-2) var(--spacing-3);font-size:var(--font-size-sm);min-height:36px}.btn-md{padding:var(--spacing-3) var(--spacing-5);font-size:var(--font-size-base);min-height:44px}.btn-lg{padding:var(--spacing-4) var(--spacing-6);font-size:var(--font-size-lg);min-height:52px}.btn-xl{padding:var(--spacing-5) var(--spacing-8);font-size:var(--font-size-xl);min-height:60px}.btn-full{width:100%}.btn-disabled{opacity:.5;cursor:not-allowed;pointer-events:none}.btn-loading{cursor:wait}.btn-icon{width:18px;height:18px;flex-shrink:0}.btn-sm .btn-icon{width:16px;height:16px}.btn-lg .btn-icon{width:20px;height:20px}.btn-spinner{width:20px;height:20px;animation:spin .8s linear infinite}.btn:not(:has(.btn-text)){padding:var(--spacing-3);border-radius:var(--radius-full)}.btn-sm:not(:has(.btn-text)){padding:var(--spacing-2)}.btn-lg:not(:has(.btn-text)){padding:var(--spacing-4)}.landing{min-height:100vh;min-height:100dvh;display:flex;flex-direction:column;position:relative;overflow:hidden}.landing-loading{min-height:100vh;display:flex;align-items:center;justify-content:center}.landing-bg{position:absolute;inset:0;z-index:0;overflow:hidden}.landing-gradient-1{position:absolute;top:-50%;right:-30%;width:80%;height:80%;background:radial-gradient(circle,rgba(139,92,246,.3) 0%,transparent 70%);animation:float 8s ease-in-out infinite}.landing-gradient-2{position:absolute;bottom:-30%;left:-30%;width:70%;height:70%;background:radial-gradient(circle,rgba(236,72,153,.25) 0%,transparent 70%);animation:float 10s ease-in-out infinite reverse}.landing-grid{position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.02) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.02) 1px,transparent 1px);background-size:50px 50px;-webkit-mask-image:radial-gradient(ellipse at center,black 0%,transparent 70%);mask-image:radial-gradient(ellipse at center,black 0%,transparent 70%)}@keyframes float{0%,to{transform:translate(0) scale(1)}33%{transform:translate(30px,-30px) scale(1.05)}66%{transform:translate(-20px,20px) scale(.95)}}.landing-content{position:relative;z-index:1;flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:var(--spacing-6);max-width:var(--max-width);margin:0 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auto;line-height:var(--line-height-relaxed)}.landing-features{display:flex;gap:var(--spacing-6);margin-bottom:var(--spacing-10)}.landing-feature{display:flex;flex-direction:column;align-items:center;gap:var(--spacing-2)}.landing-feature-icon{width:32px;height:32px;color:var(--color-accent-primary)}.landing-feature span{font-size:var(--font-size-xs);color:var(--color-text-secondary)}.landing-cta{width:100%;display:flex;flex-direction:column;gap:var(--spacing-4);margin-bottom:var(--spacing-10)}.landing-login{font-size:var(--font-size-sm);color:var(--color-text-secondary)}.landing-login-link{color:var(--color-accent-primary);font-weight:var(--font-weight-semibold);background:none;border:none;cursor:pointer;transition:color var(--transition-fast)}.landing-login-link:hover{color:var(--color-accent-secondary)}.landing-stats{display:flex;align-items:center;gap:var(--spacing-4);padding:var(--spacing-4);background:var(--color-bg-glass);border-radius:var(--radius-2xl);border:1px solid var(--color-border-primary)}.landing-stat{display:flex;flex-direction:column;align-items:center;padding:0 var(--spacing-2)}.landing-stat-value{font-size:var(--font-size-xl);font-weight:var(--font-weight-bold);background:var(--color-accent-gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.landing-stat-label{font-size:var(--font-size-xs);color:var(--color-text-muted)}.landing-stat-divider{width:1px;height:30px;background:var(--color-border-primary)}@media(min-width:640px){.landing-title{font-size:var(--font-size-5xl)}.landing-features{gap:var(--spacing-10)}}.input-container{display:flex;flex-direction:column;gap:var(--spacing-2);width:100%}.input-label{font-size:var(--font-size-sm);font-weight:var(--font-weight-medium);color:var(--color-text-secondary);transition:color var(--transition-fast)}.input-focused .input-label{color:var(--color-accent-primary)}.input-error .input-label{color:var(--color-error)}.input-required{color:var(--color-error);margin-left:var(--spacing-1)}.input-wrapper{position:relative;display:flex;align-items:center}.input-field{width:100%;padding:var(--spacing-4);font-size:var(--font-size-base);color:var(--color-text-primary);background:var(--color-bg-tertiary);border:2px solid var(--color-border-primary);border-radius:var(--radius-lg);transition:all var(--transition-fast)}.input-field::placeholder{color:var(--color-text-muted)}.input-field:hover{border-color:var(--color-text-tertiary)}.input-field:focus{border-color:var(--color-accent-primary);background:var(--color-bg-secondary)}.input-with-icon .input-field{padding-left:calc(var(--spacing-4) + 24px + var(--spacing-2))}.input-icon{position:absolute;left:var(--spacing-4);width:20px;height:20px;color:var(--color-text-muted);pointer-events:none;transition:color var(--transition-fast)}.input-focused 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.input-field:focus{border-color:var(--color-success);box-shadow:0 0 0 3px #22c55e33}.input-disabled .input-field{opacity:.5;cursor:not-allowed}.input-helper{font-size:var(--font-size-xs);color:var(--color-text-muted)}.input-helper-error{color:var(--color-error)}input[type=date]::-webkit-calendar-picker-indicator{filter:invert(1);cursor:pointer}.onboarding{min-height:100vh;min-height:100dvh;display:flex;flex-direction:column;background:var(--color-bg-primary)}.onboarding-progress{position:fixed;top:0;left:0;right:0;height:3px;background:var(--color-bg-tertiary);z-index:var(--z-sticky)}.onboarding-progress-fill{height:100%;background:var(--color-accent-gradient);transition:width .4s cubic-bezier(.34,1.56,.64,1)}.onboarding-header{display:flex;align-items:center;justify-content:space-between;padding:var(--spacing-4);padding-top:calc(var(--spacing-4) + 3px)}.onboarding-back{display:flex;align-items:center;justify-content:center;width:44px;height:44px;color:var(--color-text-primary);background:none;border:none;border-radius:var(--radius-full);cursor:pointer;transition:background var(--transition-fast)}.onboarding-back:hover{background:var(--color-bg-tertiary)}.onboarding-step-count{font-size:var(--font-size-sm);color:var(--color-text-muted)}.onboarding-main{flex:1;display:flex;flex-direction:column;align-items:center;padding:var(--spacing-6);padding-top:var(--spacing-8)}.onboarding-icon{width:80px;height:80px;display:flex;align-items:center;justify-content:center;background:var(--color-accent-gradient);border-radius:var(--radius-2xl);color:#fff;margin-bottom:var(--spacing-6);box-shadow:var(--shadow-glow)}.onboarding-title{font-size:var(--font-size-2xl);font-weight:var(--font-weight-bold);text-align:center;margin-bottom:var(--spacing-8)}.step-content{width:100%;max-width:340px;display:flex;flex-direction:column;gap:var(--spacing-4)}.step-enter{animation:slideInRight .4s ease forwards}.step-enter-back{animation:slideInLeft .4s ease forwards}.step-hint{font-size:var(--font-size-sm);color:var(--color-text-muted);text-align:center}.step-description{font-size:var(--font-size-base);color:var(--color-text-secondary);text-align:center;margin-bottom:var(--spacing-4)}.password-strength{height:4px;background:var(--color-bg-tertiary);border-radius:var(--radius-full);overflow:hidden}.password-strength-bar{height:100%;border-radius:var(--radius-full);transition:all var(--transition-normal)}.photo-upload{display:flex;align-items:center;justify-content:center;width:180px;height:180px;margin:0 auto;border:3px dashed var(--color-border-primary);border-radius:50%;cursor:pointer;transition:all var(--transition-fast);overflow:hidden}.photo-upload:hover{border-color:var(--color-accent-primary)}.photo-input{display:none}.photo-placeholder{display:flex;flex-direction:column;align-items:center;gap:var(--spacing-2);color:var(--color-text-muted)}.photo-placeholder span{font-size:var(--font-size-sm)}.photo-preview{width:100%;height:100%;object-fit:cover}.bio-input-wrapper{position:relative}.bio-textarea{width:100%;padding:var(--spacing-4);font-size:var(--font-size-base);color:var(--color-text-primary);background:var(--color-bg-tertiary);border:2px solid var(--color-border-primary);border-radius:var(--radius-lg);resize:none;transition:all var(--transition-fast)}.bio-textarea:focus{border-color:var(--color-accent-primary);background:var(--color-bg-secondary)}.bio-textarea::placeholder{color:var(--color-text-muted)}.bio-counter{position:absolute;bottom:var(--spacing-2);right:var(--spacing-3);font-size:var(--font-size-xs);color:var(--color-text-muted)}.interests-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:var(--spacing-3);margin-bottom:var(--spacing-4)}.interest-chip{display:flex;align-items:center;gap:var(--spacing-2);padding:var(--spacing-3) var(--spacing-4);background:var(--color-bg-tertiary);border:2px solid var(--color-border-primary);border-radius:var(--radius-lg);cursor:pointer;transition:all var(--transition-fast);position:relative}.interest-chip:hover{border-color:var(--color-accent-primary)}.interest-selected{background:#8b5cf626;border-color:var(--color-accent-primary)}.interest-emoji{font-size:var(--font-size-xl)}.interest-label{font-size:var(--font-size-sm);font-weight:var(--font-weight-medium);color:var(--color-text-primary)}.interest-check{position:absolute;top:var(--spacing-1);right:var(--spacing-1);color:var(--color-accent-primary)}.interests-count{font-size:var(--font-size-sm);color:var(--color-text-muted);text-align:center}.onboarding-error{padding:var(--spacing-3) var(--spacing-4);background:#ef444426;border:1px solid var(--color-error);border-radius:var(--radius-lg);font-size:var(--font-size-sm);color:var(--color-error);text-align:center;margin-top:var(--spacing-4)}.onboarding-footer{display:flex;gap:var(--spacing-3);padding:var(--spacing-4) var(--spacing-6);padding-bottom:calc(var(--spacing-6) + var(--safe-area-bottom))}.login{min-height:100vh;min-height:100dvh;display:flex;flex-direction:column;position:relative}.login-bg{position:absolute;inset:0;z-index:0;overflow:hidden}.login-gradient-1{position:absolute;top:-30%;right:-30%;width:70%;height:70%;background:radial-gradient(circle,rgba(139,92,246,.25) 0%,transparent 70%);animation:float 8s ease-in-out infinite}.login-gradient-2{position:absolute;bottom:-20%;left:-20%;width:60%;height:60%;background:radial-gradient(circle,rgba(236,72,153,.2) 0%,transparent 70%);animation:float 10s ease-in-out infinite reverse}@keyframes float{0%,to{transform:translate(0)}50%{transform:translate(20px,-20px)}}.login-header{position:relative;z-index:1;padding:var(--spacing-4)}.login-back{display:flex;align-items:center;justify-content:center;width:44px;height:44px;color:var(--color-text-primary);background:none;border:none;border-radius:var(--radius-full);cursor:pointer;transition:background var(--transition-fast)}.login-back:hover{background:var(--color-bg-tertiary)}.login-main{position:relative;z-index:1;flex:1;display:flex;flex-direction:column;align-items:center;padding:var(--spacing-6);padding-top:var(--spacing-10);max-width:var(--max-width);margin:0 auto;width:100%}.login-logo{margin-bottom:var(--spacing-8)}.login-logo-icon{width:80px;height:80px;display:flex;align-items:center;justify-content:center;background:var(--color-accent-gradient);border-radius:var(--radius-2xl);font-size:var(--font-size-4xl);font-weight:var(--font-weight-bold);color:#fff;box-shadow:var(--shadow-glow)}.login-title{font-size:var(--font-size-3xl);font-weight:var(--font-weight-bold);margin-bottom:var(--spacing-2)}.login-subtitle{font-size:var(--font-size-base);color:var(--color-text-secondary);margin-bottom:var(--spacing-8)}.login-form{width:100%;display:flex;flex-direction:column;gap:var(--spacing-4)}.login-forgot{align-self:flex-end;font-size:var(--font-size-sm);color:var(--color-accent-primary);margin-top:calc(-1 * var(--spacing-2))}.login-forgot:hover{color:var(--color-accent-secondary)}.login-error{padding:var(--spacing-3) var(--spacing-4);background:#ef444426;border:1px solid var(--color-error);border-radius:var(--radius-lg);font-size:var(--font-size-sm);color:var(--color-error);text-align:center}.login-signup{margin-top:var(--spacing-6);font-size:var(--font-size-sm);color:var(--color-text-secondary)}.login-signup-link{color:var(--color-accent-primary);font-weight:var(--font-weight-semibold)}.login-signup-link:hover{color:var(--color-accent-secondary)}.forgot-password{min-height:100vh;min-height:100dvh;display:flex;flex-direction:column;position:relative}.forgot-bg{position:absolute;inset:0;z-index:0;overflow:hidden}.forgot-gradient{position:absolute;top:-30%;left:50%;transform:translate(-50%);width:100%;height:80%;background:radial-gradient(circle,rgba(139,92,246,.2) 0%,transparent 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auto;width:100%}.forgot-icon{width:80px;height:80px;display:flex;align-items:center;justify-content:center;background:var(--color-accent-gradient);border-radius:var(--radius-2xl);color:#fff;margin-bottom:var(--spacing-6);box-shadow:var(--shadow-glow)}.forgot-title{font-size:var(--font-size-2xl);font-weight:var(--font-weight-bold);margin-bottom:var(--spacing-3);text-align:center}.forgot-description{font-size:var(--font-size-base);color:var(--color-text-secondary);text-align:center;margin-bottom:var(--spacing-8);max-width:280px}.forgot-description strong{color:var(--color-text-primary)}.forgot-form{width:100%;display:flex;flex-direction:column;gap:var(--spacing-4)}.forgot-error{padding:var(--spacing-3) var(--spacing-4);background:#ef444426;border:1px solid var(--color-error);border-radius:var(--radius-lg);font-size:var(--font-size-sm);color:var(--color-error);text-align:center}.forgot-back-link{margin-top:var(--spacing-6);font-size:var(--font-size-sm);color:var(--color-text-secondary)}.forgot-back-link 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var(--transition-fast);pointer-events:none}.video-play-overlay.visible{opacity:1}.video-play-button{width:80px;height:80px;display:flex;align-items:center;justify-content:center;background:#00000080;border-radius:50%;color:#fff;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.video-progress{position:absolute;bottom:0;left:0;right:0;height:3px;background:#fff3;z-index:10}.video-progress-fill{height:100%;background:var(--color-accent-primary);transition:width .1s linear}.video-controls{position:absolute;top:var(--spacing-4);right:var(--spacing-4);opacity:0;transition:opacity var(--transition-fast)}.video-controls.visible{opacity:1}.video-mute-btn{width:44px;height:44px;display:flex;align-items:center;justify-content:center;background:#00000080;border:none;border-radius:50%;color:#fff;cursor:pointer;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);transition:background var(--transition-fast)}.video-mute-btn:hover{background:#000000b3}.video-info{position:absolute;bottom:80px;left:0;right:70px;padding:var(--spacing-4);background:linear-gradient(transparent,#0009);pointer-events:none}.video-creator{display:flex;align-items:center;gap:var(--spacing-2);margin-bottom:var(--spacing-2);pointer-events:auto}.video-creator-avatar{width:36px;height:36px;display:flex;align-items:center;justify-content:center;background:var(--color-bg-tertiary);border-radius:50%;overflow:hidden;border:2px solid white}.video-creator-avatar 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var(--transition-fast)}.video-action-btn:active{transform:scale(.9)}.action-icon{width:28px;height:28px;filter:drop-shadow(0 2px 4px rgba(0,0,0,.3))}.video-action-btn span{font-size:var(--font-size-xs);font-weight:var(--font-weight-semibold);text-shadow:0 1px 2px rgba(0,0,0,.5)}.video-action-btn.liked .action-icon{color:var(--color-heart);animation:heartBurst .4s ease}.video-action-btn.liked .action-icon.filled{fill:var(--color-heart)}.feed{height:100vh;height:100dvh;overflow:hidden;background:var(--color-bg-primary)}.feed-container{height:100%;overflow-y:scroll;scroll-snap-type:y mandatory;-webkit-overflow-scrolling:touch}.feed-item{height:100vh;height:100dvh;scroll-snap-align:start;scroll-snap-stop:always}.feed-loading{height:100vh;height:100dvh;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:var(--spacing-4);color:var(--color-text-secondary)}.feed-loading p{font-size:var(--font-size-sm)}.feed-error{height:100vh;height:100dvh;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:var(--spacing-4);padding:var(--spacing-6);text-align:center}.feed-error p{color:var(--color-text-secondary)}.feed-retry-btn{display:flex;align-items:center;gap:var(--spacing-2);padding:var(--spacing-3) var(--spacing-5);background:var(--color-accent-gradient);color:#fff;border:none;border-radius:var(--radius-lg);font-weight:var(--font-weight-semibold);cursor:pointer}.feed-empty{height:100vh;height:100dvh;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:var(--spacing-3);padding:var(--spacing-6);text-align:center}.feed-empty-icon{font-size:64px;margin-bottom:var(--spacing-2)}.feed-empty h2{font-size:var(--font-size-xl);font-weight:var(--font-weight-bold)}.feed-empty p{color:var(--color-text-secondary)}.feed-create-btn{margin-top:var(--spacing-4);padding:var(--spacing-3) var(--spacing-6);background:var(--color-accent-gradient);color:#fff;border:none;border-radius:var(--radius-lg);font-weight:var(--font-weight-semibold);cursor:pointer;transition:box-shadow var(--transition-fast)}.feed-create-btn:hover{box-shadow:var(--shadow-glow)}.feed-loading-more{height:100px;display:flex;align-items:center;justify-content:center}.feed-container::-webkit-scrollbar{display:none}.feed-container{-ms-overflow-style:none;scrollbar-width:none}.upload{min-height:100vh;min-height:100dvh;display:flex;flex-direction:column;background:var(--color-bg-primary)}.upload-header{display:flex;align-items:center;justify-content:space-between;padding:var(--spacing-4);border-bottom:1px solid var(--color-border-secondary)}.upload-close{width:44px;height:44px;display:flex;align-items:center;justify-content:center;background:none;border:none;color:var(--color-text-primary);cursor:pointer;border-radius:var(--radius-full);transition:background var(--transition-fast)}.upload-close:hover{background:var(--color-bg-tertiary)}.upload-title{font-size:var(--font-size-lg);font-weight:var(--font-weight-semibold)}.upload-main{flex:1;padding:var(--spacing-4);padding-bottom:calc(var(--spacing-6) + var(--safe-area-bottom));overflow-y:auto}.upload-form{display:flex;flex-direction:column;gap:var(--spacing-4);max-width:var(--max-width);margin:0 auto}.upload-picker{aspect-ratio:9 / 16;max-height:400px;display:flex;align-items:center;justify-content:center;background:var(--color-bg-tertiary);border:2px dashed var(--color-border-primary);border-radius:var(--radius-xl);cursor:pointer;transition:all var(--transition-fast)}.upload-picker:hover{border-color:var(--color-accent-primary);background:#8b5cf60d}.upload-input{display:none}.upload-picker-content{display:flex;flex-direction:column;align-items:center;gap:var(--spacing-2);padding:var(--spacing-6);text-align:center}.upload-picker-icon{color:var(--color-text-muted);margin-bottom:var(--spacing-2)}.upload-picker-text{font-size:var(--font-size-base);font-weight:var(--font-weight-medium);color:var(--color-text-primary)}.upload-picker-hint{font-size:var(--font-size-sm);color:var(--color-text-muted)}.upload-preview{position:relative;aspect-ratio:9 / 16;max-height:400px;border-radius:var(--radius-xl);overflow:hidden;background:var(--color-bg-tertiary)}.upload-preview-video{width:100%;height:100%;object-fit:cover}.upload-preview-remove{position:absolute;top:var(--spacing-2);right:var(--spacing-2);width:36px;height:36px;display:flex;align-items:center;justify-content:center;background:#0009;border:none;border-radius:50%;color:#fff;cursor:pointer;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.upload-textarea-wrapper{display:flex;flex-direction:column;gap:var(--spacing-2);position:relative}.upload-label{font-size:var(--font-size-sm);font-weight:var(--font-weight-medium);color:var(--color-text-secondary)}.upload-textarea{width:100%;padding:var(--spacing-4);font-size:var(--font-size-base);color:var(--color-text-primary);background:var(--color-bg-tertiary);border:2px solid var(--color-border-primary);border-radius:var(--radius-lg);resize:none;transition:all var(--transition-fast)}.upload-textarea:focus{border-color:var(--color-accent-primary);background:var(--color-bg-secondary)}.upload-textarea::placeholder{color:var(--color-text-muted)}.upload-counter{position:absolute;bottom:var(--spacing-2);right:var(--spacing-3);font-size:var(--font-size-xs);color:var(--color-text-muted)}.upload-error{padding:var(--spacing-3) var(--spacing-4);background:#ef444426;border:1px solid var(--color-error);border-radius:var(--radius-lg);font-size:var(--font-size-sm);color:var(--color-error);text-align:center}.upload-progress{position:relative;height:8px;background:var(--color-bg-tertiary);border-radius:var(--radius-full);overflow:hidden}.upload-progress-fill{height:100%;background:var(--color-accent-gradient);transition:width .3s ease}.upload-progress-text{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);font-size:var(--font-size-xs);font-weight:var(--font-weight-semibold);color:#fff;text-shadow:0 1px 2px rgba(0,0,0,.5)}.upload-success{min-height:100vh;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:var(--spacing-3);padding:var(--spacing-6);text-align:center;background:var(--color-bg-primary)}.upload-success-icon{width:100px;height:100px;display:flex;align-items:center;justify-content:center;background:var(--color-success);border-radius:50%;color:#fff;margin-bottom:var(--spacing-4)}.upload-success h2{font-size:var(--font-size-2xl);font-weight:var(--font-weight-bold)}.upload-success p{color:var(--color-text-secondary)}.profile{min-height:100vh;min-height:100dvh;display:flex;flex-direction:column;background:var(--color-bg-primary);padding-bottom:calc(var(--nav-height) + var(--safe-area-bottom))}.profile-loading{min-height:100vh;display:flex;align-items:center;justify-content:center}.profile-header{display:flex;align-items:center;justify-content:space-between;padding:var(--spacing-4);position:sticky;top:0;background:var(--color-bg-primary);z-index:var(--z-sticky);border-bottom:1px solid var(--color-border-secondary)}.profile-username{font-size:var(--font-size-lg);font-weight:var(--font-weight-bold)}.profile-header-actions{display:flex;gap:var(--spacing-2)}.profile-header-btn{width:44px;height:44px;display:flex;align-items:center;justify-content:center;background:none;border:none;color:var(--color-text-primary);cursor:pointer;border-radius:var(--radius-full);transition:background var(--transition-fast)}.profile-header-btn:hover{background:var(--color-bg-tertiary)}.profile-info{display:flex;flex-direction:column;align-items:center;padding:var(--spacing-6);padding-bottom:var(--spacing-4);text-align:center}.profile-avatar{width:96px;height:96px;display:flex;align-items:center;justify-content:center;background:var(--color-bg-tertiary);border-radius:50%;overflow:hidden;margin-bottom:var(--spacing-4);border:3px solid var(--color-accent-primary)}.profile-avatar img{width:100%;height:100%;object-fit:cover}.profile-avatar svg{color:var(--color-text-muted)}.profile-stats{display:flex;gap:var(--spacing-8);margin-bottom:var(--spacing-4)}.profile-stat{display:flex;flex-direction:column;align-items:center}.profile-stat-value{font-size:var(--font-size-xl);font-weight:var(--font-weight-bold)}.profile-stat-label{font-size:var(--font-size-sm);color:var(--color-text-muted)}.profile-name{font-size:var(--font-size-lg);font-weight:var(--font-weight-semibold);margin-bottom:var(--spacing-2)}.profile-bio{font-size:var(--font-size-sm);color:var(--color-text-secondary);max-width:280px;margin-bottom:var(--spacing-4)}.profile-actions{display:flex;gap:var(--spacing-3)}.profile-tabs{display:flex;border-bottom:1px solid var(--color-border-secondary)}.profile-tab{flex:1;display:flex;align-items:center;justify-content:center;gap:var(--spacing-2);padding:var(--spacing-3);background:none;border:none;color:var(--color-text-muted);font-size:var(--font-size-sm);font-weight:var(--font-weight-medium);cursor:pointer;position:relative;transition:color var(--transition-fast)}.profile-tab:hover{color:var(--color-text-secondary)}.profile-tab.active{color:var(--color-text-primary)}.profile-tab.active:after{content:"";position:absolute;bottom:-1px;left:0;right:0;height:2px;background:var(--color-text-primary)}.profile-content{flex:1;padding:var(--spacing-1)}.profile-content-loading{display:flex;justify-content:center;padding:var(--spacing-8)}.profile-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:2px}.profile-video{position:relative;aspect-ratio:9 / 16;background:var(--color-bg-tertiary);cursor:pointer;overflow:hidden}.profile-video img,.profile-video video{width:100%;height:100%;object-fit:cover}.profile-video-overlay{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:var(--spacing-1);background:#0006;color:#fff;opacity:0;transition:opacity var(--transition-fast)}.profile-video:hover .profile-video-overlay{opacity:1}.profile-video-overlay span{font-size:var(--font-size-xs);font-weight:var(--font-weight-medium)}.profile-empty{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:var(--spacing-10);text-align:center}.profile-empty-icon{font-size:48px;margin-bottom:var(--spacing-4)}.profile-empty h3{font-size:var(--font-size-lg);font-weight:var(--font-weight-semibold);margin-bottom:var(--spacing-2)}.profile-empty p{font-size:var(--font-size-sm);color:var(--color-text-muted);margin-bottom:var(--spacing-4)}.profile-video-add{aspect-ratio:9 / 16;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:var(--spacing-2);background:var(--color-bg-tertiary);border:2px dashed var(--color-border-primary);border-radius:var(--radius-md);color:var(--color-text-muted);cursor:pointer;transition:all var(--transition-fast)}.profile-video-add:hover{background:var(--color-bg-secondary);color:var(--color-accent-primary);border-color:var(--color-accent-primary)}.profile-analytics{padding:var(--spacing-4);display:grid;grid-template-columns:repeat(2,1fr);gap:var(--spacing-4)}.analytics-card{background:var(--color-bg-secondary);padding:var(--spacing-4);border-radius:var(--radius-lg);display:flex;align-items:center;gap:var(--spacing-3);border:1px solid var(--color-border-secondary)}.analytics-icon{width:40px;height:40px;border-radius:var(--radius-md);display:flex;align-items:center;justify-content:center}.analytics-icon.views{background:#3b82f61a;color:#3b82f6}.analytics-icon.likes{background:#ef44441a;color:#ef4444}.analytics-icon.shares{background:#10b9811a;color:#10b981}.analytics-icon.engagement{background:#a855f71a;color:#a855f7}.analytics-info{display:flex;flex-direction:column}.analytics-value{font-size:var(--font-size-lg);font-weight:var(--font-weight-bold)}.analytics-label{font-size:10px;color:var(--color-text-muted);text-transform:uppercase;letter-spacing:.05em}.analytics-chart-placeholder{grid-column:span 2;background:var(--color-bg-secondary);padding:var(--spacing-4);border-radius:var(--radius-lg);margin-top:var(--spacing-2);border:1px solid var(--color-border-secondary)}.analytics-chart-placeholder h3{font-size:var(--font-size-sm);font-weight:var(--font-weight-semibold);margin-bottom:var(--spacing-6)}.chart-bar-container{height:120px;display:flex;align-items:flex-end;justify-content:space-around;gap:var(--spacing-2)}.chart-item{flex:1;display:flex;flex-direction:column;align-items:center;gap:var(--spacing-2);height:100%;justify-content:flex-end}.chart-bar{width:100%;background:linear-gradient(to top,var(--color-accent-primary),var(--color-accent-secondary));border-radius:4px 4px 0 0;transition:height .5s ease-out}.chart-label{font-size:9px;color:var(--color-text-muted);white-space:nowrap}.mt-6{margin-top:var(--spacing-6)}.search-page{min-height:100vh;min-height:100dvh;display:flex;flex-direction:column;background:var(--color-bg-primary);padding-bottom:calc(var(--nav-height) + var(--safe-area-bottom))}.search-header{position:sticky;top:0;padding:var(--spacing-4);background:var(--color-bg-primary);z-index:var(--z-sticky);border-bottom:1px solid var(--color-border-secondary)}.search-form{max-width:var(--max-width);margin:0 auto}.search-main{flex:1;padding:var(--spacing-4);overflow-y:auto}.search-section{margin-bottom:var(--spacing-6)}.search-section-title{display:flex;align-items:center;gap:var(--spacing-2);font-size:var(--font-size-base);font-weight:var(--font-weight-semibold);margin-bottom:var(--spacing-4)}.search-categories{display:grid;grid-template-columns:repeat(2,1fr);gap:var(--spacing-3)}.search-category{display:flex;align-items:center;gap:var(--spacing-3);padding:var(--spacing-4);background:var(--color-bg-tertiary);border:1px solid var(--color-border-primary);border-radius:var(--radius-lg);cursor:pointer;transition:all var(--transition-fast)}.search-category:hover{background:var(--color-bg-elevated);border-color:var(--color-accent-primary)}.search-category-emoji{font-size:var(--font-size-2xl)}.search-category-label{font-size:var(--font-size-sm);font-weight:var(--font-weight-medium);color:var(--color-text-primary)}.search-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:2px}.search-video{position:relative;aspect-ratio:9 / 16;background:var(--color-bg-tertiary);cursor:pointer;overflow:hidden;border-radius:var(--radius-sm)}.search-video img,.search-video video{width:100%;height:100%;object-fit:cover}.search-video-overlay{position:absolute;bottom:0;left:0;right:0;display:flex;align-items:center;gap:var(--spacing-1);padding:var(--spacing-2);background:linear-gradient(transparent,#000000b3);color:#fff}.search-video-overlay span{font-size:var(--font-size-xs);font-weight:var(--font-weight-medium)}.search-results-count{font-size:var(--font-size-sm);color:var(--color-text-muted);margin-bottom:var(--spacing-4)}.search-loading{display:flex;justify-content:center;padding:var(--spacing-8)}.search-empty{text-align:center;padding:var(--spacing-8);color:var(--color-text-muted)}.settings{min-height:100vh;min-height:100dvh;background:var(--color-bg-primary);padding-bottom:var(--spacing-8)}.settings-header{height:60px;display:flex;align-items:center;gap:var(--spacing-4);padding:0 var(--spacing-4);position:sticky;top:0;background:var(--color-bg-primary);border-bottom:1px solid var(--color-border-secondary);z-index:var(--z-sticky)}.settings-header h1{font-size:var(--font-size-lg);font-weight:var(--font-weight-bold)}.back-btn{background:none;border:none;color:var(--color-text-primary);cursor:pointer;padding:var(--spacing-1)}.settings-content{padding:var(--spacing-4);max-width:600px;margin:0 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var(--color-border-secondary)}.settings-item:last-child{border-bottom:none}.settings-item:hover{background:var(--color-bg-tertiary)}.settings-item-left{display:flex;align-items:center;gap:var(--spacing-3)}.settings-item-icon{width:36px;height:36px;border-radius:var(--radius-md);display:flex;align-items:center;justify-content:center}.settings-item span{font-size:var(--font-size-md);font-weight:var(--font-weight-medium)}.danger-zone{background:#ef44440d;padding:var(--spacing-6);border-radius:var(--radius-xl);border:1px dashed var(--color-error);display:flex;flex-direction:column;gap:var(--spacing-4)}.danger-zone h3{color:var(--color-error);font-size:var(--font-size-md);font-weight:var(--font-weight-bold)}.danger-link{background:none;border:none;color:var(--color-text-secondary);font-size:var(--font-size-sm);font-weight:var(--font-weight-medium);text-align:left;cursor:pointer;padding:0}.danger-link.delete{color:var(--color-error)}.settings-footer{margin-top:var(--spacing-10);text-align:center;color:var(--color-text-muted);font-size:var(--font-size-xs)}.settings-footer p{margin-bottom:var(--spacing-1)}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}:root{--color-bg-primary: #000000;--color-bg-secondary: #0a0a0a;--color-bg-tertiary: #141414;--color-bg-elevated: #1a1a1a;--color-bg-glass: rgba(20, 20, 20, .85);--color-text-primary: #ffffff;--color-text-secondary: #a3a3a3;--color-text-tertiary: #737373;--color-text-muted: #525252;--color-accent-primary: #8b5cf6;--color-accent-secondary: #a78bfa;--color-accent-gradient: linear-gradient(135deg, #8b5cf6 0%, #ec4899 100%);--color-accent-glow: rgba(139, 92, 246, .4);--color-success: #22c55e;--color-error: #ef4444;--color-warning: #f59e0b;--color-info: #3b82f6;--color-heart: #ff3b5c;--color-border-primary: #262626;--color-border-secondary: #1f1f1f;--color-border-focus: var(--color-accent-primary);--font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;--font-size-xs: .75rem;--font-size-sm: .875rem;--font-size-base: 1rem;--font-size-lg: 1.125rem;--font-size-xl: 1.25rem;--font-size-2xl: 1.5rem;--font-size-3xl: 1.875rem;--font-size-4xl: 2.25rem;--font-size-5xl: 3rem;--font-weight-normal: 400;--font-weight-medium: 500;--font-weight-semibold: 600;--font-weight-bold: 700;--line-height-tight: 1.25;--line-height-normal: 1.5;--line-height-relaxed: 1.75;--spacing-1: .25rem;--spacing-2: .5rem;--spacing-3: .75rem;--spacing-4: 1rem;--spacing-5: 1.25rem;--spacing-6: 1.5rem;--spacing-8: 2rem;--spacing-10: 2.5rem;--spacing-12: 3rem;--spacing-16: 4rem;--spacing-20: 5rem;--radius-sm: .375rem;--radius-md: .5rem;--radius-lg: .75rem;--radius-xl: 1rem;--radius-2xl: 1.5rem;--radius-full: 9999px;--shadow-sm: 0 1px 2px rgba(0, 0, 0, .5);--shadow-md: 0 4px 6px rgba(0, 0, 0, .4);--shadow-lg: 0 10px 15px rgba(0, 0, 0, .3);--shadow-xl: 0 20px 25px rgba(0, 0, 0, .25);--shadow-glow: 0 0 20px var(--color-accent-glow);--transition-fast: .15s ease;--transition-normal: .25s ease;--transition-slow: .35s ease;--transition-spring: .5s cubic-bezier(.34, 1.56, .64, 1);--z-dropdown: 100;--z-sticky: 200;--z-modal: 300;--z-tooltip: 400;--z-toast: 500;--header-height: 60px;--nav-height: 70px;--max-width: 480px;--safe-area-bottom: env(safe-area-inset-bottom, 20px)}html{font-size:16px;scroll-behavior:smooth;-webkit-text-size-adjust:100%}body{font-family:var(--font-family);font-size:var(--font-size-base);line-height:var(--line-height-normal);color:var(--color-text-primary);background-color:var(--color-bg-primary);min-height:100vh;min-height:100dvh;overflow-x:hidden;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}#root{min-height:100vh;min-height:100dvh;display:flex;flex-direction:column}h1,h2,h3,h4,h5,h6{font-weight:var(--font-weight-bold);line-height:var(--line-height-tight)}h1{font-size:var(--font-size-4xl)}h2{font-size:var(--font-size-3xl)}h3{font-size:var(--font-size-2xl)}h4{font-size:var(--font-size-xl)}h5{font-size:var(--font-size-lg)}h6{font-size:var(--font-size-base)}p{color:var(--color-text-secondary)}a{color:var(--color-accent-primary);text-decoration:none;transition:color var(--transition-fast)}a:hover{color:var(--color-accent-secondary)}input,textarea,select,button{font-family:inherit;font-size:inherit;outline:none;border:none;background:none}input::placeholder,textarea::placeholder{color:var(--color-text-muted)}button{cursor:pointer;color:inherit}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--color-border-primary);border-radius:var(--radius-full)}::-webkit-scrollbar-thumb:hover{background:var(--color-text-tertiary)}::selection{background:var(--color-accent-primary);color:var(--color-text-primary)}:focus-visible{outline:2px solid var(--color-accent-primary);outline-offset:2px}.visually-hidden{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.text-gradient{background:var(--color-accent-gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.glass{background:var(--color-bg-glass);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border:1px solid var(--color-border-primary)}.container{width:100%;max-width:var(--max-width);margin:0 auto;padding:0 var(--spacing-4)}.page{flex:1;display:flex;flex-direction:column;padding-bottom:calc(var(--nav-height) + var(--safe-area-bottom))}.page-centered{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:var(--spacing-6);min-height:100vh;min-height:100dvh}.skeleton{background:linear-gradient(90deg,var(--color-bg-tertiary) 25%,var(--color-bg-elevated) 50%,var(--color-bg-tertiary) 75%);background-size:200% 100%;animation:skeleton-loading 1.5s infinite}@keyframes skeleton-loading{0%{background-position:200% 0}to{background-position:-200% 0}}.spinner{width:24px;height:24px;border:2px solid var(--color-border-primary);border-top-color:var(--color-accent-primary);border-radius:50%;animation:spin .8s linear infinite}.spinner-lg{width:40px;height:40px;border-width:3px}@keyframes spin{to{transform:rotate(360deg)}}@media(min-width:640px){:root{--max-width: 540px}}@media(min-width:1024px){:root{--max-width: 480px}}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes fadeOut{0%{opacity:1}to{opacity:0}}@keyframes slideInUp{0%{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}@keyframes slideInDown{0%{opacity:0;transform:translateY(-30px)}to{opacity:1;transform:translateY(0)}}@keyframes slideInLeft{0%{opacity:0;transform:translate(-30px)}to{opacity:1;transform:translate(0)}}@keyframes slideInRight{0%{opacity:0;transform:translate(30px)}to{opacity:1;transform:translate(0)}}@keyframes slideOutLeft{0%{opacity:1;transform:translate(0)}to{opacity:0;transform:translate(-30px)}}@keyframes slideOutRight{0%{opacity:1;transform:translate(0)}to{opacity:0;transform:translate(30px)}}@keyframes scaleIn{0%{opacity:0;transform:scale(.9)}to{opacity:1;transform:scale(1)}}@keyframes scaleOut{0%{opacity:1;transform:scale(1)}to{opacity:0;transform:scale(.9)}}@keyframes popIn{0%{opacity:0;transform:scale(.5)}70%{transform:scale(1.1)}to{opacity:1;transform:scale(1)}}@keyframes bounce{0%,to{transform:translateY(0)}50%{transform:translateY(-10px)}}@keyframes heartBurst{0%{transform:scale(1)}25%{transform:scale(1.3)}50%{transform:scale(.95)}75%{transform:scale(1.1)}to{transform:scale(1)}}@keyframes heartPulse{0%,to{transform:scale(1)}50%{transform:scale(1.15)}}@keyframes ripple{0%{transform:scale(0);opacity:.5}to{transform:scale(4);opacity:0}}@keyframes shake{0%,to{transform:translate(0)}10%,30%,50%,70%,90%{transform:translate(-5px)}20%,40%,60%,80%{transform:translate(5px)}}@keyframes pulse{0%,to{opacity:1}50%{opacity:.5}}@keyframes pulseBorder{0%,to{box-shadow:0 0 0 0 var(--color-accent-glow)}50%{box-shadow:0 0 0 10px transparent}}@keyframes gradientShift{0%{background-position:0% 50%}50%{background-position:100% 50%}to{background-position:0% 50%}}@keyframes float{0%,to{transform:translateY(0)}50%{transform:translateY(-20px)}}@keyframes glow{0%,to{box-shadow:0 0 20px var(--color-accent-glow)}50%{box-shadow:0 0 40px var(--color-accent-glow)}}@keyframes progress{0%{width:0%}to{width:100%}}@keyframes typingDot{0%,60%,to{transform:translateY(0);opacity:.6}30%{transform:translateY(-10px);opacity:1}}.animate-fadeIn{animation:fadeIn .3s ease forwards}.animate-slideInUp{animation:slideInUp .4s ease forwards}.animate-slideInDown{animation:slideInDown .4s ease forwards}.animate-slideInLeft{animation:slideInLeft .4s ease forwards}.animate-slideInRight{animation:slideInRight .4s ease forwards}.animate-scaleIn{animation:scaleIn .3s ease forwards}.animate-popIn{animation:popIn .4s cubic-bezier(.34,1.56,.64,1) forwards}.animate-bounce{animation:bounce .6s ease infinite}.animate-pulse{animation:pulse 2s ease-in-out infinite}.animate-shake{animation:shake .5s ease}.animate-float{animation:float 3s ease-in-out infinite}.animate-glow{animation:glow 2s ease-in-out infinite}.delay-100{animation-delay:.1s}.delay-200{animation-delay:.2s}.delay-300{animation-delay:.3s}.delay-400{animation-delay:.4s}.delay-500{animation-delay:.5s}.transition-all{transition:all var(--transition-normal)}.transition-transform{transition:transform var(--transition-normal)}.transition-opacity{transition:opacity var(--transition-normal)}.transition-colors{transition:color var(--transition-fast),background-color var(--transition-fast),border-color var(--transition-fast)}.hover-scale{transition:transform var(--transition-fast)}.hover-scale:hover{transform:scale(1.05)}.hover-scale:active{transform:scale(.95)}.page-enter{animation:slideInRight .4s ease forwards}.page-exit{animation:slideOutLeft .3s ease forwards}.page-enter-back{animation:slideInLeft .4s ease forwards}.page-exit-back{animation:slideOutRight .3s ease forwards}