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UI,Roboto,Helvetica,Arial,sans-serif;line-height:1.6;overflow-x:hidden;background-color:var(--bg)!important;scroll-behavior:smooth!important}a{color:inherit;text-decoration:none}button{font-family:inherit}h1,h2,h3,h4,h5,h6{letter-spacing:-.02em;line-height:1.2}::-webkit-scrollbar{width:5px;height:5px}::-webkit-scrollbar-track{background:0 0}::-webkit-scrollbar-thumb{background:var(--border);border-radius:999px}::-webkit-scrollbar-thumb:hover{background:var(--text-faint)}@keyframes fadeUp{0%{opacity:0;transform:translateY(18px)}to{opacity:1;transform:translateY(0)}}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes spin{to{transform:rotate(360deg)}}.animate-fade-up{animation:.5s both fadeUp}.animate-fade-in{animation:.4s both fadeIn}.animate-fade{animation:.5s both fadeUp}.animate-spin{animation:.8s linear infinite spin}:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.stagger>:first-child{animation-delay:0s}.stagger>:nth-child(2){animation-delay:70ms}.stagger>:nth-child(3){animation-delay:.14s}.stagger>:nth-child(4){animation-delay:.21s}.stagger>:nth-child(5){animation-delay:.28s}.glass-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius-lg);box-shadow:var(--shadow-md);transition:border-color .2s}.glass-card:hover{border-color:var(--glass-border)}.glass-input{background:var(--bg-secondary);border:1.5px solid var(--border);color:var(--text);border-radius:var(--radius);outline:none;width:100%;height:52px;padding:0 16px;font-family:inherit;font-size:14px;transition:border-color .2s,box-shadow .2s;display:block}[data-theme=light] .glass-input{background:#fff}.glass-input::placeholder{color:var(--text-faint)}.glass-input:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-glow)}.phone-input-wrapper{align-items:center;width:100%;display:flex;position:relative}.phone-input-prefix{color:var(--text-muted);pointer-events:none;font-size:14px;font-weight:600;position:absolute;left:16px}.phone-input-group{flex-direction:column;gap:8px;width:100%;display:flex}.phone-input-row{gap:10px;width:100%;display:flex}.phone-country-select-wrap{flex-shrink:0;width:108px;height:52px;position:relative}.phone-country-display{pointer-events:none;z-index:1;border-radius:var(--radius);align-items:center;gap:4px;padding:0 28px 0 10px;display:flex;position:absolute;inset:0}.phone-country-flag{flex-shrink:0;font-size:20px;line-height:1}.phone-country-dial{color:var(--text);letter-spacing:-.02em;font-size:14px;font-weight:700}.phone-country-chevron{color:var(--text-faint);position:absolute;top:50%;right:10px;transform:translateY(-50%)}.phone-country-select{opacity:0;cursor:pointer;z-index:2;background:0 0;border:none;width:100%;height:100%;position:absolute;inset:0}.phone-country-select-wrap:before{content:"";border:1.5px solid var(--border);border-radius:var(--radius);background:var(--bg-secondary);pointer-events:none;position:absolute;inset:0}[data-theme=light] .phone-country-select-wrap:before{background:#fff}.phone-country-select-wrap:focus-within:before{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-glow)}.phone-national-wrap{flex:1;align-items:center;min-width:0;display:flex;position:relative}.phone-dial-prefix{color:var(--text-muted);pointer-events:none;z-index:1;white-space:nowrap;font-size:14px;font-weight:700;position:absolute;left:14px}.phone-national-input{padding-left:16px!important;padding-right:44px!important}.phone-input-trailing-icon{color:var(--text-faint);pointer-events:none;position:absolute;top:50%;right:14px;transform:translateY(-50%)}.phone-input-preview{color:var(--text-muted);margin:0;padding-left:2px;font-size:12px}.phone-input-preview strong{color:var(--text);font-weight:600}.sr-only{clip:rect(0, 0, 0, 0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}@media (max-width:400px){.phone-country-select-wrap{width:100px}.phone-country-select{padding-left:34px;font-size:12px}}.auth-card{z-index:1;background:var(--card);border:1.5px solid var(--border);border-radius:var(--radius-xl);width:100%;max-width:460px;box-shadow:var(--shadow-lg);flex-direction:column;gap:20px;padding:28px;display:flex;position:relative}@media (min-width:640px){.auth-card{gap:24px;padding:44px}}.auth-input-group{flex-direction:column;gap:8px;width:100%;display:flex}.auth-label{text-transform:uppercase;letter-spacing:.08em;color:var(--text-muted);font-size:11px;font-weight:700}.auth-field-hint{color:var(--text-faint);margin:4px 0 0;font-size:12px;line-height:1.4}.btn-primary{background:var(--accent);color:#fff;border-radius:var(--radius);cursor:pointer;letter-spacing:-.01em;white-space:nowrap;border:none;justify-content:center;align-items:center;gap:8px;height:48px;padding:0 24px;font-family:inherit;font-size:14px;font-weight:600;text-decoration:none;transition:background .15s,transform .1s;display:inline-flex}.btn-primary:hover{background:var(--accent-hover)}.btn-primary:active{transform:scale(.97)}.btn-secondary{color:var(--text);border:1.5px solid var(--border);border-radius:var(--radius);cursor:pointer;white-space:nowrap;background:0 0;justify-content:center;align-items:center;gap:8px;height:48px;padding:0 24px;font-family:inherit;font-size:14px;font-weight:600;text-decoration:none;transition:background .15s,transform .1s;display:inline-flex}.btn-secondary:hover{background:var(--border-muted)}.btn-secondary:active{transform:scale(.97)}.glow-orb{filter:blur(90px);z-index:0;pointer-events:none;opacity:.45;will-change:transform, filter;backface-visibility:hidden;border-radius:50%;position:absolute;transform:translate(0)}.badge{letter-spacing:.04em;border:1px solid;border-radius:999px;align-items:center;gap:6px;padding:5px 14px;font-size:11px;font-weight:700;display:inline-flex}.badge-success{color:#10b981;background:#10b9811f;border-color:#10b98133}.badge-accent{background:var(--accent-subtle);color:var(--accent);border-color:var(--accent-glow)}.badge-muted{background:var(--border-muted);color:var(--text-muted);border-color:var(--border)}.section-eyebrow{letter-spacing:.1em;text-transform:uppercase;color:var(--text-faint);margin-bottom:8px;font-size:10px;font-weight:700;display:block}.section-title{color:var(--text);margin-bottom:4px;font-size:22px;font-weight:700}.section-subtitle{color:var(--text-muted);font-size:13px;line-height:1.6}.spinner{border:3px solid var(--border);border-top-color:var(--accent);border-radius:50%;flex-shrink:0;width:36px;height:36px;animation:.7s linear infinite spin}.spinner-sm{border-width:2px;width:20px;height:20px}.icon-btn{border-radius:var(--radius-sm);border:1px solid var(--border);width:38px;height:38px;color:var(--text-muted);cursor:pointer;background:0 0;flex-shrink:0;justify-content:center;align-items:center;transition:background .15s,color .15s;display:inline-flex}.icon-btn:hover{background:var(--border-muted);color:var(--text)}.workspace-shell{background:var(--bg);min-height:100vh;display:flex}.sidebar{width:var(--sidebar-w);background:var(--card);border-right:1px solid var(--border);z-index:50;flex-direction:column;flex-shrink:0;height:100vh;display:flex;position:sticky;top:0;overflow:hidden}@media (max-width:767px){.sidebar{display:none!important}}.sidebar-brand{border-bottom:1px solid var(--border);flex-shrink:0;align-items:center;gap:12px;height:64px;padding:0 18px;display:flex}.sidebar-nav{flex-direction:column;flex:1;gap:2px;padding:14px 10px;display:flex;overflow-y:auto}.sidebar-link{border-radius:var(--radius);color:var(--text-muted);cursor:pointer;border:1px solid #0000;align-items:center;gap:10px;padding:10px 14px;font-size:14px;font-weight:500;text-decoration:none;transition:background .15s,color .15s;display:flex}.sidebar-link:hover{background:var(--border-muted);color:var(--text)}.sidebar-link.active{background:var(--accent-subtle);color:var(--text);border-color:var(--accent-glow);font-weight:600}.sidebar-link.active .sidebar-icon{color:var(--accent)}.sidebar-icon{flex-shrink:0;width:18px;height:18px}.sidebar-footer{border-top:1px solid var(--border);flex-direction:column;flex-shrink:0;gap:8px;padding:12px;display:flex}.sidebar-user{border-radius:var(--radius);background:var(--bg);border:1px solid var(--border);align-items:center;gap:10px;padding:10px 12px;display:flex}.sidebar-logout-btn{border-radius:var(--radius-sm);width:100%;color:var(--danger);cursor:pointer;background:#ef44440f;border:1px solid #ef44444d;justify-content:center;align-items:center;gap:6px;margin-top:8px;padding:10px 12px;font-family:inherit;font-size:12px;font-weight:600;transition:background .15s;display:flex}.sidebar-logout-btn:hover{background:#ef44441f}.sidebar-avatar{color:#fff;border-radius:10px;flex-shrink:0;justify-content:center;align-items:center;width:34px;height:34px;font-size:13px;font-weight:700;display:flex}.admin-switch-btn{border-radius:var(--radius);letter-spacing:.03em;text-transform:uppercase;cursor:pointer;border:1px solid;align-items:center;gap:8px;padding:10px 14px;font-size:12px;font-weight:700;text-decoration:none;transition:background .15s;display:flex}.admin-switch-btn.student{color:#10b981;background:#10b98114;border-color:#10b98133}.admin-switch-btn.student:hover{background:#10b98126}.admin-switch-btn.teacher{background:var(--accent-subtle);color:var(--accent);border-color:var(--accent-glow)}.admin-switch-btn.teacher:hover{background:#6366f126}.mobile-header{background:var(--glass-bg);-webkit-backdrop-filter:blur(20px);border-bottom:1px solid var(--border);z-index:40;flex-shrink:0;justify-content:space-between;align-items:center;height:60px;padding:0 16px;display:none;position:sticky;top:0}@media (max-width:767px){.mobile-header{display:flex!important}}.top-header{border-bottom:1px solid var(--border);background:var(--glass-bg);-webkit-backdrop-filter:blur(20px);z-index:40;flex-shrink:0;justify-content:space-between;align-items:center;height:64px;padding:0 28px;display:none;position:sticky;top:0}@media (min-width:768px){.top-header{display:flex!important}}.main-content{background:var(--bg);flex-direction:column;flex:1;min-width:0;display:flex;overflow:hidden}.page-content{flex:1;width:100%;max-width:1200px;margin:0 auto;padding:32px;overflow-y:auto}@media (max-width:767px){.page-content{padding:20px 16px;padding-bottom:calc(var(--bottom-nav-h) + var(--bottom-nav-pad) * 2 + env(safe-area-inset-bottom,0px) + 24px)}}.bottom-nav{z-index:100;padding-bottom:env(safe-area-inset-bottom,0px);pointer-events:none;display:none;position:fixed;bottom:0;left:0;right:0}@media (max-width:767px){.bottom-nav{display:block!important}}.bottom-nav-bg{background:var(--card);-webkit-backdrop-filter:blur(24px);border-top:1px solid var(--border);position:absolute;inset:0;box-shadow:0 -4px 24px #0003}[data-theme=light] .bottom-nav-bg{background:#fffffff5;box-shadow:0 -4px 20px #0000000f}.bottom-nav-inner{width:100%;max-width:520px;min-height:calc(var(--bottom-nav-h) + var(--bottom-nav-pad) * 2);padding:var(--bottom-nav-pad) 6px;pointer-events:auto;justify-content:space-around;align-items:center;margin:0 auto;display:flex;position:relative}.bottom-nav-item{min-width:0;color:var(--text-muted);letter-spacing:.01em;cursor:pointer;-webkit-tap-highlight-color:transparent;background:0 0;border:none;flex-direction:column;flex:1;justify-content:center;align-items:center;gap:3px;padding:4px 2px;font-family:inherit;font-size:11px;font-weight:600;line-height:1.2;text-decoration:none;transition:color .15s;display:flex}.bottom-nav-item span:last-child{text-overflow:ellipsis;white-space:nowrap;max-width:100%;display:block;overflow:hidden}.bottom-nav-item.active{color:var(--accent)}.bnav-icon{border-radius:10px;flex-shrink:0;justify-content:center;align-items:center;width:32px;height:32px;transition:background .15s,color .15s;display:flex}.bottom-nav-item.active .bnav-icon{background:var(--accent-subtle);color:var(--accent)}.drawer-backdrop{-webkit-backdrop-filter:blur(4px);z-index:80;background:#000000a6;position:fixed;inset:0}.drawer{width:min(var(--sidebar-w), 85vw);background:var(--card);border-right:1px solid var(--border);z-index:90;flex-direction:column;transition:transform .3s cubic-bezier(.32,.72,0,1);display:flex;position:fixed;top:0;bottom:0;left:0;overflow:hidden;transform:translate(-100%)}.drawer.open{transform:translate(0)}.stat-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius-lg);justify-content:space-between;align-items:center;gap:16px;padding:24px;transition:border-color .2s;display:flex}.stat-card:hover{border-color:var(--glass-border)}.stat-icon{border-radius:var(--radius);flex-shrink:0;justify-content:center;align-items:center;width:52px;height:52px;display:flex}.action-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius-lg);cursor:pointer;justify-content:space-between;align-items:center;gap:12px;padding:18px 20px;text-decoration:none;transition:transform .15s,border-color .15s,box-shadow .15s;display:flex}.action-card:hover{border-color:var(--glass-border);box-shadow:var(--shadow-md);transform:translateY(-2px)}.action-card:active{transform:translateY(0)}.hero-banner{border-radius:var(--radius-xl);color:#fff;background:linear-gradient(135deg,#0d9488 0%,#10b981 60%,#059669 100%);padding:36px;position:relative;overflow:hidden}@media (max-width:767px){.hero-banner{border-radius:var(--radius-lg);padding:24px 20px}}.hero-banner:before{content:"";pointer-events:none;background:#ffffff14;border-radius:50%;width:200px;height:200px;position:absolute;top:-60px;right:-60px}.hero-banner:after{content:"";pointer-events:none;background:#ffffff0d;border-radius:50%;width:180px;height:180px;position:absolute;bottom:-80px;left:-40px}.dashboard-grid{grid-template-columns:repeat(2,1fr);gap:12px;display:grid}@media (min-width:640px){.dashboard-grid{grid-template-columns:repeat(2,1fr);gap:16px}}@media (min-width:1024px){.dashboard-grid{grid-template-columns:repeat(4,1fr)}}.dashboard-action-card{text-align:center;flex-direction:column;justify-content:center;align-items:center;padding:14px 10px}@media (min-width:640px){.dashboard-action-card{padding:24px}}.brand-block{text-align:center;flex-direction:column;align-items:center;gap:16px;display:flex}.brand-mark{color:#fff;box-shadow:var(--shadow-accent);background:linear-gradient(135deg,#0d9488,#10b981);border-radius:16px;flex-shrink:0;justify-content:center;align-items:center;font-weight:800;display:flex}.brand-title{letter-spacing:.04em;color:var(--text);font-weight:800;line-height:1.2}.brand-accent{color:var(--accent)}.brand-subtitle{color:var(--text-muted);margin-top:4px}.auth-page,.marketing-page{background:var(--bg);min-height:100vh;color:var(--text);flex-direction:column;display:flex;position:relative;overflow:hidden}.auth-page{justify-content:center;align-items:center;padding:24px 16px 48px;background:linear-gradient(135deg,#01241c 0%,#09090b 100%)!important}[data-theme=light] .auth-page{background:linear-gradient(135deg,#e6f4f1 0%,#fdfdfd 100%)!important}.auth-page-bg{pointer-events:none;z-index:0;position:absolute;inset:0;overflow:hidden}.auth-page-inner{z-index:2;flex-direction:column;align-items:center;gap:28px;width:100%;max-width:460px;display:flex;position:relative}.auth-page-topbar{justify-content:flex-end;align-items:center;width:100%;margin-bottom:-8px;display:flex}[data-theme=light] .auth-page .glow-orb,[data-theme=light] .marketing-page .glow-orb{opacity:.35}[data-theme=light] .login-method-tab:not(.is-active){background:var(--card)}.auth-tabs{z-index:5;width:100%;position:relative}.login-method-tabs{z-index:20;gap:8px;width:100%;display:flex;position:relative}.login-method-tab{border-radius:var(--radius);border:1.5px solid var(--border);background:var(--bg-secondary);min-height:48px;color:var(--text-muted);cursor:pointer;-webkit-user-select:none;user-select:none;flex:1;justify-content:center;align-items:center;padding:12px 16px;font-size:14px;font-weight:700;transition:background .15s,color .15s,border-color .15s;display:flex}.login-method-tab:hover{color:var(--text);border-color:var(--accent-glow)}.login-method-tab.is-active{background:var(--accent);color:#fff;border-color:var(--accent);box-shadow:var(--shadow-accent)}.login-method-tab:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.site-header{border-bottom:1px solid var(--border);background:var(--glass-bg);-webkit-backdrop-filter:blur(16px);z-index:10;justify-content:space-between;align-items:center;width:100%;padding:16px 20px;display:flex;position:sticky;top:0}@media (min-width:768px){.site-header{padding:20px 48px}}.site-footer{text-align:center;border-top:1px solid var(--border);width:100%;color:var(--text-muted);z-index:10;padding:32px 20px;font-size:13px}.site-footer p+p{color:var(--text-faint);margin-top:6px;font-size:11px}.faq-section{text-align:left;width:100%;max-width:800px;margin:96px auto 48px;padding:0 24px}.faq-title-area{text-align:center;margin-bottom:48px}.faq-title-area h2{color:var(--text);letter-spacing:-.02em;margin-top:8px;font-size:clamp(1.75rem,3.5vw,2.5rem);font-weight:800}.faq-list{flex-direction:column;gap:16px;display:flex}.faq-item{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);transition:all .25s cubic-bezier(.4,0,.2,1);overflow:hidden}.faq-item:hover{border-color:var(--glass-border);box-shadow:var(--shadow-sm);background:var(--card-elevated)}.faq-item.active{border-color:var(--accent);box-shadow:0 4px 20px var(--accent-glow)}.faq-question-btn{width:100%;color:var(--text);text-align:left;cursor:pointer;background:0 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32px;position:relative}.footer-container{grid-template-columns:1fr;gap:40px;max-width:72rem;margin:0 auto;display:grid}@media (min-width:640px){.footer-container{grid-template-columns:repeat(2,1fr)}}@media (min-width:1024px){.footer-container{grid-template-columns:2fr 1.2fr 1fr 1fr}}.footer-brand{flex-direction:column;gap:16px;display:flex}.footer-brand-logo{align-items:center;gap:12px;text-decoration:none;display:flex}.footer-desc{color:var(--text-muted);max-width:320px;font-size:14px;line-height:1.6}.footer-socials{gap:12px;margin-top:8px;display:flex}.footer-social-btn{background:var(--bg);border:1px solid var(--border);width:36px;height:36px;color:var(--text-muted);border-radius:50%;justify-content:center;align-items:center;text-decoration:none;transition:all .2s;display:flex}.footer-social-btn:hover{background:var(--accent-subtle);color:var(--accent);border-color:var(--accent);transform:translateY(-2px)}.footer-column{flex-direction:column;gap:16px;display:flex}.footer-column h4{text-transform:uppercase;letter-spacing:.05em;color:var(--text);font-size:14px;font-weight:700}.footer-links{flex-direction:column;gap:10px;margin:0;padding:0;list-style:none;display:flex}.footer-link{color:var(--text-muted);font-size:14px;text-decoration:none;transition:color .15s;display:inline-block}.footer-link:hover{color:var(--accent)}.footer-contact-info{flex-direction:column;gap:12px;display:flex}.footer-contact-item{color:var(--text-muted);align-items:center;gap:10px;font-size:14px;display:flex}.footer-contact-item svg{color:var(--accent);flex-shrink:0}.footer-bottom{border-top:1px solid var(--border);flex-direction:column;justify-content:space-between;align-items:center;gap:16px;max-width:72rem;margin:48px auto 0;padding-top:24px;display:flex}@media (min-width:768px){.footer-bottom{flex-direction:row}}.footer-copy{color:var(--text-faint);font-size:13px}.footer-bottom-links{gap:20px;display:flex}.footer-bottom-link{color:var(--text-faint);font-size:13px;text-decoration:none;transition:color .15s}.footer-bottom-link:hover{color:var(--text-muted)}.marketing-hero{text-align:center;z-index:1;flex-direction:column;flex:1;align-items:center;width:100%;max-width:72rem;margin:0 auto;padding:24px 24px 64px;display:flex}@media (min-width:768px){.marketing-hero{padding:40px 48px 96px}}.marketing-hero h1{color:var(--text);margin-bottom:20px;font-size:clamp(1.75rem,4vw,3.25rem);font-weight:800;line-height:1.15}.marketing-hero .hero-lead{color:var(--text-muted);max-width:42rem;margin-bottom:32px;font-size:clamp(.9rem,2vw,1.125rem);line-height:1.65}.feature-grid{text-align:left;grid-template-columns:1fr;gap:16px;width:100%;display:grid}@media (min-width:640px){.feature-grid{grid-template-columns:repeat(2,1fr);gap:20px}}@media (min-width:1280px){.feature-grid{grid-template-columns:repeat(4,1fr)}}.feature-card{height:100%;padding:24px}.feature-card h3{color:var(--text);margin-bottom:8px;font-size:1.05rem;font-weight:700}.feature-card p{color:var(--text-muted);font-size:13px;line-height:1.55}.feature-icon{border-radius:14px;justify-content:center;align-items:center;width:48px;height:48px;margin-bottom:20px;display:flex}.segmented-control{border-radius:var(--radius);background:var(--bg-secondary);border:1px solid var(--border);z-index:1;gap:4px;width:100%;padding:4px;display:flex;position:relative}.segmented-control-btn{border-radius:calc(var(--radius) - 4px);min-width:0;min-height:44px;color:var(--text-muted);letter-spacing:.02em;cursor:pointer;white-space:nowrap;z-index:2;pointer-events:auto;-webkit-tap-highlight-color:transparent;touch-action:manipulation;background:0 0;border:none;flex:1;padding:10px 14px;font-family:inherit;font-size:13px;font-weight:700;transition:background .15s,color .15s,box-shadow .15s;position:relative}.segmented-control-btn:hover:not(.active){color:var(--text);background:var(--border-muted)}.segmented-control-btn.active{background:var(--accent);color:#fff;box-shadow:var(--shadow-accent)}.modal-backdrop{-webkit-backdrop-filter:blur(8px);z-index:200;background:#000000a6;justify-content:center;align-items:center;padding:16px;display:flex;position:fixed;inset:0}.modal-panel{background:var(--card);border:1px solid var(--border);border-radius:var(--radius-lg);width:100%;max-width:400px;box-shadow:var(--shadow-lg);padding:24px}.modal-panel h3{color:var(--text);align-items:center;gap:8px;margin-bottom:8px;font-size:1.125rem;font-weight:700;display:flex}.modal-panel p{color:var(--text-muted);margin-bottom:16px;font-size:14px;line-height:1.5}.modal-actions{justify-content:flex-end;gap:12px;margin-top:8px;display:flex}.confirm-dialog{text-align:center;max-width:400px}.confirm-dialog-icon{border-radius:var(--radius);background:var(--accent-subtle);width:52px;height:52px;color:var(--accent);justify-content:center;align-items:center;margin:0 auto 16px;display:flex}.confirm-dialog-icon[data-variant=warning]{color:var(--warning);background:#f59e0b1f}.confirm-dialog-icon[data-variant=danger]{color:var(--danger);background:#ef44441f}.confirm-dialog h3{justify-content:center;margin-bottom:10px}.confirm-dialog p{margin-bottom:24px;font-size:14px;line-height:1.55}.confirm-dialog-actions{justify-content:stretch;margin-top:0}.page-loader{flex-direction:column;justify-content:center;align-items:center;gap:14px;width:100%;min-height:240px;display:flex}.page-loader--compact{min-height:120px}.page-loader-label{color:var(--text-muted);font-size:13px;font-weight:600}.surface-hover{transition:background .15s,border-color .15s}.surface-hover:hover{background:var(--border-muted)}.icon-btn.surface-hover:hover{background:var(--border-muted);color:var(--text)}.link-accent{color:var(--accent);font-weight:700;transition:opacity .15s}.link-accent:hover{opacity:.85;text-decoration:underline}.text-muted{color:var(--text-muted)}.text-faint{color:var(--text-faint)}.course-grid{grid-template-columns:1fr;gap:20px;display:grid}@media (min-width:768px){.course-grid{grid-template-columns:repeat(2,1fr)}}@media (min-width:1024px){.course-grid{grid-template-columns:repeat(3,1fr)}}.course-card{flex-direction:column;transition:transform .2s,border-color .2s,box-shadow .2s;display:flex;overflow:hidden}.course-card:hover{border-color:var(--glass-border);box-shadow:var(--shadow-md);transform:translateY(-3px)}.course-card-thumb{background:var(--bg-secondary);width:100%;height:176px;position:relative;overflow:hidden}.course-card-thumb img{object-fit:cover;width:100%;height:100%}.course-card-price{color:#fff;border-radius:8px;padding:6px 12px;font-size:11px;font-weight:800;position:absolute;bottom:12px;right:12px}.course-card-price.paid{background:#000000b8}.course-card-price.free{background:var(--success)}.course-card-body{flex-direction:column;flex:1;justify-content:space-between;gap:16px;padding:20px;display:flex}.course-card-footer{border-top:1px solid var(--border);justify-content:space-between;align-items:center;padding-top:16px;display:flex}.glass-select{appearance:none;background:var(--bg-secondary);border:1.5px solid var(--border);color:var(--text);border-radius:var(--radius);cursor:pointer;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%238b8ba0' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");background-position:right 12px center;background-repeat:no-repeat;width:100%;height:48px;padding:0 40px 0 14px;font-family:inherit;font-size:14px}[data-theme=light] .glass-select{background-color:#fff}.glass-select:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-glow);outline:none}.admin-shell{background:var(--bg);min-height:100vh;color:var(--text);display:flex}.admin-sidebar{width:var(--sidebar-w);background:var(--card);border-right:1px solid var(--border);z-index:50;flex-direction:column;flex-shrink:0;height:100vh;display:none;position:sticky;top:0}@media (min-width:768px){.admin-sidebar{display:flex}}.admin-menu-toggle{justify-content:center;align-items:center;display:inline-flex}.admin-mobile-drawer,.admin-mobile-drawer-backdrop{display:block}@media (min-width:768px){.admin-menu-toggle,.admin-mobile-drawer,.admin-mobile-drawer-backdrop{display:none!important}}.admin-brand-mark{background:linear-gradient(135deg,#ef4444,#dc2626)}.admin-nav-link{border-radius:var(--radius);color:var(--text-muted);border:1px solid #0000;align-items:center;gap:12px;padding:12px 16px;font-size:14px;font-weight:600;text-decoration:none;transition:background .15s,color .15s;display:flex}.admin-nav-link:hover{background:var(--border-muted);color:var(--text)}.admin-nav-link.active{background:var(--admin-accent-subtle);color:var(--text);border-color:#ef444440}.admin-nav-link.active svg{color:var(--admin-accent)}.admin-main{flex-direction:column;flex:1;min-width:0;display:flex}.admin-topbar{border-bottom:1px solid var(--border);background:var(--glass-bg);-webkit-backdrop-filter:blur(16px);z-index:40;justify-content:space-between;align-items:center;height:64px;padding:0 20px;display:flex;position:sticky;top:0}@media (min-width:768px){.admin-topbar{padding:0 40px}}.admin-content{flex:1;width:100%;max-width:80rem;margin:0 auto;padding:24px 20px 48px;overflow-y:auto}@media (min-width:768px){.admin-content{padding:40px}}.admin-page-header{flex-direction:column;gap:16px;display:flex}@media (min-width:768px){.admin-page-header{flex-direction:row;justify-content:space-between;align-items:flex-end}}.admin-course-list{flex-direction:column;gap:12px;display:flex}.admin-course-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);flex-direction:column;gap:16px;padding:16px;transition:border-color .2s,box-shadow 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.support-view-link{color:var(--admin-accent)}.admin-support-ticket-card:hover .support-view-link{background:var(--admin-accent);color:#fff}.admin-shell .btn-primary{background:var(--admin-accent)}.admin-shell .btn-primary:hover{background:#dc2626}[data-theme=light] .admin-shell .btn-primary:hover{background:#b91c1c}.curriculum-back{text-transform:uppercase;letter-spacing:.06em;color:var(--text-muted);align-items:center;gap:6px;margin-bottom:4px;font-size:12px;font-weight:700;text-decoration:none;transition:color .15s;display:inline-flex}.curriculum-back:hover{color:var(--admin-accent)}.curriculum-outline{flex-direction:column;gap:12px;display:flex}.curriculum-chapter{border:1px solid var(--border);border-radius:var(--radius-lg);background:var(--card);box-shadow:var(--shadow-sm);overflow:hidden}.curriculum-chapter-header{background:var(--card);justify-content:space-between;align-items:center;gap:12px;padding:16px 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var(--border);justify-content:space-between;align-items:center;gap:12px;padding:14px 18px 14px 68px;transition:background .15s;display:flex}.curriculum-lesson-row:last-child{border-bottom:none}.curriculum-lesson-row:hover{background:var(--admin-accent-subtle)}.curriculum-lesson-icon{background:var(--border-muted);width:36px;height:36px;color:var(--text-muted);border-radius:10px;flex-shrink:0;justify-content:center;align-items:center;display:flex}.curriculum-lesson-info{flex:1;min-width:0}.curriculum-lesson-title{color:var(--text);font-size:13px;font-weight:600}.curriculum-lesson-key{color:var(--text-muted);word-break:break-all;margin-top:4px;font-size:11px}.curriculum-lessons-empty{color:var(--text-muted);padding:16px 18px 16px 68px;font-size:13px;font-style:italic}@media (max-width:640px){.curriculum-lesson-row,.curriculum-lessons-empty{padding-left:18px}.curriculum-chapter-header{flex-wrap:wrap}.curriculum-chapter-actions{justify-content:flex-end;width:100%}}.curriculum-empty{text-align:center;border:1px dashed var(--border);border-radius:var(--radius-lg);background:var(--card);flex-direction:column;justify-content:center;align-items:center;gap:16px;min-height:280px;padding:56px 32px;display:flex}.curriculum-empty-icon{background:var(--admin-accent-subtle);width:64px;height:64px;color:var(--admin-accent);border-radius:16px;justify-content:center;align-items:center;display:flex}.curriculum-empty h3{color:var(--text);margin:0;font-size:18px;font-weight:700}.curriculum-empty p{color:var(--text-muted);max-width:420px;margin:0;font-size:14px;line-height:1.55}.curriculum-expand-btn{width:32px;height:32px;color:var(--text-muted);cursor:pointer;background:0 0;border:none;border-radius:8px;justify-content:center;align-items:center;transition:background .15s,color .15s;display:flex}.curriculum-expand-btn:hover{background:var(--border-muted);color:var(--text)}.media-upload-grid{grid-template-columns:1fr;align-items:start;gap:24px;display:grid}@media (min-width:1024px){.media-upload-grid{grid-template-columns:1fr 340px}}.media-upload-panel{background:var(--card);border:1px solid var(--border);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);padding:24px}@media (min-width:768px){.media-upload-panel{padding:32px}}.media-dropzone{border:2px dashed var(--border);border-radius:var(--radius-lg);text-align:center;background:var(--bg-secondary);flex-direction:column;justify-content:center;align-items:center;gap:12px;min-height:200px;padding:40px 24px;transition:border-color .2s,background .2s;display:flex;position:relative}.media-dropzone:hover,.media-dropzone.has-file{border-color:var(--accent);background:var(--accent-subtle)}.media-dropzone 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h3{color:var(--text-muted);text-transform:uppercase;letter-spacing:.06em;margin-bottom:16px;font-size:13px;font-weight:700}.media-alert{border-radius:var(--radius);gap:12px;padding:14px 16px;font-size:13px;line-height:1.5;display:flex}.media-alert--success{color:var(--text);background:#10b9811a;border:1px solid #10b9814d}.media-alert--error{color:var(--text);background:#ef44441a;border:1px solid #ef44444d}.media-alert svg{flex-shrink:0;margin-top:2px}.media-key-row{align-items:stretch;gap:8px;display:flex}.media-key-row .glass-input{flex:1;min-width:0;font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;font-size:12px}.media-hint-box{border-radius:var(--radius);background:var(--bg-secondary);border:1px solid var(--border);color:var(--text-muted);padding:14px 16px;font-size:12px;line-height:1.55}.media-hint-box strong{color:var(--text);margin-bottom:6px;font-size:13px;display:block}.media-type-badges{flex-wrap:wrap;justify-content:center;gap:8px;margin-top:4px;display:flex}.media-type-badge{background:var(--card);border:1px solid var(--border);color:var(--text-muted);border-radius:6px;padding:4px 10px;font-size:11px;font-weight:600}.empty-state{text-align:center;flex-direction:column;align-items:center;gap:16px;padding:48px 24px;display:flex}.empty-state h3{color:var(--text);font-size:1.125rem;font-weight:700}.empty-state p{color:var(--text-muted);max-width:24rem;font-size:14px;line-height:1.55}[data-sonner-toaster]{--normal-bg:var(--card);--normal-border:var(--border);--normal-text:var(--text);font-family:inherit;z-index:9999!important}[data-sonner-toast]{border-radius:var(--radius)!important;box-shadow:var(--shadow-lg)!important}.page-stack{flex-direction:column;gap:32px;display:flex}.page-header-block h1{letter-spacing:-.02em;color:var(--text);font-size:1.5rem;font-weight:800}.page-header-block p{color:var(--text-muted);margin-top:4px;font-size:14px}.otp-input{text-align:center;letter-spacing:.35em;font-size:1.25rem;font-weight:700}.profile-hero{background:linear-gradient(135deg, var(--card) 0%, var(--card-elevated) 100%);border:1px solid var(--border);border-radius:var(--radius-lg);box-shadow:var(--shadow-md);flex-direction:column;align-items:center;gap:20px;padding:28px 24px;display:flex}@media (min-width:768px){.profile-hero{flex-direction:row;align-items:center;gap:28px;padding:32px 36px}}.profile-hero-avatar{color:#fff;background:linear-gradient(145deg, var(--accent) 0%, var(--accent-hover) 100%);width:88px;height:88px;box-shadow:var(--shadow-accent);letter-spacing:-.03em;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;font-size:2rem;font-weight:800;display:flex}.profile-hero-meta{text-align:center;flex-direction:column;align-items:center;gap:8px;min-width:0;display:flex}@media (min-width:768px){.profile-hero-meta{text-align:left;align-items:flex-start}}.profile-hero-name{letter-spacing:-.02em;color:var(--text);font-size:1.375rem;font-weight:800;line-height:1.2}.profile-hero-badges{flex-wrap:wrap;justify-content:center;gap:8px;display:flex}@media (min-width:768px){.profile-hero-badges{justify-content:flex-start}}.profile-hero-id{color:var(--text-faint);word-break:break-all;max-width:100%;font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;font-size:12px}.profile-grid{grid-template-columns:1fr;gap:24px;display:grid}@media (min-width:1024px){.profile-grid{grid-template-columns:1fr 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notification-panel-in;display:flex;position:fixed;overflow:hidden;box-shadow:0 20px 50px #00000059,inset 0 0 0 1px #ffffff0a}@keyframes notification-panel-in{0%{opacity:0;transform:translateY(-6px)scale(.98)}to{opacity:1;transform:translateY(0)scale(1)}}.notification-panel-header{border-bottom:1px solid var(--border);background:var(--card);flex-shrink:0;justify-content:space-between;align-items:center;gap:12px;padding:14px 16px;display:flex}.notification-panel-header h3{color:var(--text);letter-spacing:-.02em;margin:0;font-size:15px;font-weight:800}.notification-panel-header-actions{flex-shrink:0;align-items:center;gap:6px;display:flex}.notification-mark-all{color:var(--accent);background:var(--accent-subtle);cursor:pointer;white-space:nowrap;border:none;border-radius:8px;align-items:center;gap:5px;padding:6px 10px;font-size:11px;font-weight:700;display:inline-flex}.notification-mark-all:hover{filter:brightness(1.08)}.notification-panel-close{flex-shrink:0;width:32px;height:32px}.notification-panel-body{-webkit-overflow-scrolling:touch;flex:1;min-height:120px;overflow-y:auto}.notification-bell-btn--labeled{align-items:center;gap:8px;width:auto!important;height:auto!important;padding:12px 16px!important;display:inline-flex!important}.notification-bell-label{font-size:12px;font-weight:700}.notification-panel-empty{text-align:center;color:var(--text-muted);flex-direction:column;justify-content:center;align-items:center;gap:8px;padding:32px 20px;display:flex}.notification-panel-empty p{color:var(--text);margin:0;font-size:13px;font-weight:700}.notification-panel-empty span{font-size:11px}.notification-list{margin:0;padding:6px 8px;list-style:none}.notification-list-item:not(:last-child){border-bottom:1px solid var(--border)}.notification-item{border-radius:var(--radius-md);cursor:pointer;text-align:left;background:0 0;border:none;grid-template-columns:auto 1fr auto;align-items:center;gap:12px;width:100%;padding:12px 10px;transition:background .15s;display:grid}.notification-item:hover{background:var(--surface-hover)}.notification-item-meta{min-width:0;color:var(--text-muted);align-items:baseline;gap:4px;font-size:12px;line-height:1.4;display:flex}.notification-item-meta .notification-item-message{text-overflow:ellipsis;white-space:nowrap;-webkit-line-clamp:unset;flex:auto;-webkit-box-orient:unset;min-width:0;display:block;overflow:hidden}.notification-item-dot{color:var(--text-faint);flex-shrink:0}.notification-item-meta .notification-item-time{white-space:nowrap;flex-shrink:0;margin-top:0;font-size:11px}.notification-item-chevron{width:28px;height:28px;color:var(--text-faint);border-radius:8px;flex-shrink:0;justify-content:center;align-items:center;display:flex}.notification-item:hover 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6px;font-size:11px;font-weight:800;display:flex}.notification-panel-footer{border-top:1px solid var(--border);text-align:center;background:var(--card);flex-shrink:0;padding:12px 16px}.notification-footer-link{color:var(--accent);font-size:12px;font-weight:700;text-decoration:none}.notification-footer-link:hover{text-decoration:underline}.notification-feed-card{padding:0;overflow:hidden}.notification-feed-header{border-bottom:1px solid var(--border);padding:18px 20px 14px}.notification-feed-header-title{flex-wrap:wrap;align-items:center;gap:10px;display:flex}.notification-feed-header-icon{background:var(--accent-subtle);width:36px;height:36px;color:var(--accent);border-radius:10px;flex-shrink:0;justify-content:center;align-items:center;display:flex}.notification-feed-header h2{color:var(--text);letter-spacing:-.02em;margin:0;font-size:15px;font-weight:800}.notification-feed-count-badge{background:var(--danger);color:#fff;border-radius:999px;align-items:center;padding:3px 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var(--border);background:var(--card);flex-direction:column;align-items:center;gap:12px;padding:40px 24px;display:flex}.course-detail-empty-icon{background:var(--accent-subtle);width:52px;height:52px;color:var(--accent);border-radius:14px;justify-content:center;align-items:center;display:flex}.course-detail-empty h3{color:var(--text);margin:0;font-size:15px;font-weight:800}.course-detail-empty p{color:var(--text-muted);max-width:360px;margin:0;font-size:13px;line-height:1.55}.course-detail-sidebar{min-width:0}.course-description-rich{color:var(--text-muted);word-break:break-word;font-size:14px;line-height:1.65}.course-description-rich p{margin:0 0 .75em}.course-description-rich p:last-child{margin-bottom:0}.course-description-rich .course-rich-ul,.course-description-rich .course-rich-ol,.course-description-rich ul:not(.course-rich-ol),.course-description-rich ol{margin:0 0 .85em;padding:0;list-style:none!important}.course-description-rich .course-rich-ul>li,.course-description-rich 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--tw-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-shadow-color{syntax:"*";inherits:false}@property --tw-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-inset-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-inset-shadow-color{syntax:"*";inherits:false}@property --tw-inset-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-ring-color{syntax:"*";inherits:false}@property --tw-ring-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-inset-ring-color{syntax:"*";inherits:false}@property --tw-inset-ring-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-ring-inset{syntax:"*";inherits:false}@property --tw-ring-offset-width{syntax:"<length>";inherits:false;initial-value:0}@property --tw-ring-offset-color{syntax:"*";inherits:false;initial-value:#fff}@property --tw-ring-offset-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-outline-style{syntax:"*";inherits:false;initial-value:solid}@property --tw-blur{syntax:"*";inherits:false}@property --tw-brightness{syntax:"*";inherits:false}@property --tw-contrast{syntax:"*";inherits:false}@property --tw-grayscale{syntax:"*";inherits:false}@property --tw-hue-rotate{syntax:"*";inherits:false}@property --tw-invert{syntax:"*";inherits:false}@property --tw-opacity{syntax:"*";inherits:false}@property --tw-saturate{syntax:"*";inherits:false}@property --tw-sepia{syntax:"*";inherits:false}@property --tw-drop-shadow{syntax:"*";inherits:false}@property --tw-drop-shadow-color{syntax:"*";inherits:false}@property --tw-drop-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-drop-shadow-size{syntax:"*";inherits:false}@property --tw-duration{syntax:"*";inherits:false}