.admin-shell{background:var(--color-bg);grid-template-columns:260px minmax(0,1fr);height:100dvh;max-height:100dvh;display:grid;overflow:hidden}.admin-sidebar{height:100dvh;max-height:100dvh;padding:calc(var(--space-4) + env(safe-area-inset-top,0px)) var(--space-4) var(--space-4);background:var(--admin-sidebar-bg);color:var(--admin-sidebar-fg);border-inline-start:1px solid var(--admin-sidebar-border);flex-direction:column;display:flex;overflow:hidden}.admin-sidebar__head{gap:var(--space-1);padding-bottom:var(--space-4);border-bottom:1px solid #ffffff14;flex-direction:column;flex-shrink:0;display:flex}.admin-sidebar__head strong{font-size:1.05rem;font-weight:var(--font-weight-bold);letter-spacing:-.01em}.admin-sidebar__head .muted{color:var(--admin-sidebar-muted);font-size:var(--text-label)}.admin-nav{overscroll-behavior:contain;gap:var(--space-1);min-height:0;margin:var(--space-4) 0;flex-direction:column;flex:1;padding-inline-end:2px;display:flex;overflow-y:auto}.admin-nav a{color:#ffffffb8;border-radius:var(--radius-md);font-size:var(--text-body-sm);font-weight:var(--font-weight-semibold);transition:background var(--transition), color var(--transition);flex-shrink:0;padding:.65rem .85rem;text-decoration:none}.admin-nav a:hover{color:#fff;background:#ffffff14}.admin-nav a.active{background:var(--color-brand-600);color:#fff;box-shadow:inset 0 0 0 1px #ffffff1f}.admin-sidebar__foot{gap:var(--space-3);padding-top:var(--space-3);border-top:1px solid #ffffff14;flex-direction:column;flex-shrink:0;display:flex}.admin-sidebar__foot .theme-toggle--sidebar{width:100%}.admin-sidebar__foot .btn--ghost{width:100%;color:var(--admin-sidebar-fg);background:#ffffff0a;border-color:#ffffff38}.admin-sidebar__foot .btn--ghost:hover{background:#ffffff1a;border-color:#ffffff59}.admin-link{color:var(--admin-sidebar-muted);font-size:var(--text-label);font-weight:var(--font-weight-medium);text-decoration:none}.admin-link:hover{color:var(--admin-sidebar-fg)}.admin-main{overscroll-behavior:contain;min-width:0;height:100dvh;min-height:0;padding:var(--space-6) var(--space-8);padding-bottom:calc(var(--space-6) + env(safe-area-inset-bottom,0px));overflow-y:auto}.admin-page{max-width:76rem;animation:.25s admin-fade-in}@keyframes admin-fade-in{0%{opacity:0;transform:translateY(4px)}to{opacity:1;transform:none}}.admin-page__head{margin-bottom:var(--space-6)}.admin-page__head--row{justify-content:space-between;align-items:flex-start;gap:var(--space-4);flex-wrap:wrap;display:flex}.admin-panel--settings{max-width:36rem}.admin-panel--settings h2{font-size:1.1rem;font-weight:var(--font-weight-bold);margin-top:0}.settings-panel .settings-intro{color:var(--color-text-muted)}.admin-page h1{font-size:1.5rem;font-weight:var(--font-weight-bold);letter-spacing:-.025em;color:var(--color-text);margin:0}.admin-page__head p{margin:var(--space-2) 0 0;color:var(--color-text-muted);font-size:var(--text-body-sm);max-width:42rem;line-height:1.55}.admin-alert{margin-bottom:var(--space-4);padding:var(--space-3) var(--space-4);border-radius:var(--radius-md);font-size:var(--text-body-sm);border:1px solid var(--color-danger);background:var(--color-danger-bg);color:var(--color-danger)}.admin-grid{gap:var(--space-4);margin-bottom:var(--space-6);grid-template-columns:repeat(auto-fill,minmax(190px,1fr));display:grid}.stat-card{background:var(--color-bg-elevated);border:1px solid var(--color-border);border-radius:var(--radius-lg);padding:var(--space-4) var(--space-5);box-shadow:var(--shadow-xs);border-top:3px solid var(--color-brand-600)}.stat-card span{color:var(--color-text-muted);font-size:var(--text-label);font-weight:var(--font-weight-medium);margin-bottom:var(--space-1);display:block}.stat-card strong{font-size:1.55rem;font-weight:var(--font-weight-bold);letter-spacing:-.02em;color:var(--color-brand-600);line-height:1.1;display:block}.admin-panel{background:var(--color-bg-elevated);border:1px solid var(--color-border);border-radius:var(--radius-lg);padding:var(--space-5) var(--space-6);box-shadow:var(--shadow-xs);margin-bottom:var(--space-5)}.admin-panel h2{margin:0 0 var(--space-4);font-size:1.08rem;font-weight:var(--font-weight-bold);color:var(--color-text)}.admin-panel__sub{margin:calc(-1 * var(--space-2)) 0 var(--space-4);color:var(--color-text-muted);font-size:var(--text-label)}.admin-toolbar{gap:var(--space-3);margin-bottom:var(--space-4);flex-wrap:wrap;justify-content:space-between;align-items:center;display:flex}.admin-toolbar--filters{padding:var(--space-4);background:var(--color-bg-muted);border:1px solid var(--color-border);border-radius:var(--radius-md)}.admin-toolbar select,.admin-filters select{font-family:var(--font-sans);font-size:var(--text-body-sm);font-weight:var(--font-weight-medium);border:1px solid var(--color-border-strong);border-radius:var(--radius-md);background:var(--color-input-bg);min-height:2.75rem;color:var(--color-text);min-width:11rem;padding:.55rem .85rem}.admin-toolbar select:focus,.admin-filters select:focus{border-color:var(--color-brand-500);box-shadow:var(--shadow-focus);outline:none}.admin-table-wrap{border:1px solid var(--color-border);border-radius:var(--radius-md);background:var(--color-input-bg);overflow-x:auto}.admin-table{border-collapse:collapse;width:100%;font-size:var(--text-body-sm)}.admin-table th,.admin-table td{border-bottom:1px solid var(--color-border);text-align:start;vertical-align:middle;padding:.75rem 1rem}.admin-table th{z-index:1;background:var(--color-table-header-bg);color:var(--color-text-muted);font-size:.78rem;font-weight:var(--font-weight-bold);letter-spacing:.02em;white-space:nowrap;position:sticky;top:0}.admin-table tbody tr:nth-child(2n){background:var(--color-table-stripe)}.admin-table tbody tr:hover{background:var(--color-table-row-hover)}.admin-table tbody tr:last-child td{border-bottom:none}.admin-table td.muted-cell{color:var(--color-text-muted);font-size:var(--text-label)}.admin-table__primary{font-weight:var(--font-weight-bold);color:var(--color-text);margin-bottom:.15rem;display:block}.admin-table__empty{padding:var(--space-8);text-align:center;color:var(--color-text-muted)}.admin-form{gap:var(--space-4);max-width:none;display:grid}.admin-form.admin-panel{max-width:640px}.admin-form h2{margin:0 0 var(--space-2);font-size:1.08rem;font-weight:var(--font-weight-bold)}.admin-form label{gap:var(--space-2);font-size:var(--text-label);font-weight:var(--font-weight-semibold);color:var(--color-text);display:grid}.admin-form input,.admin-form select,.admin-form textarea{font-family:var(--font-sans);font-size:var(--text-body);font-weight:var(--font-weight-regular);border:1px solid var(--color-border-strong);border-radius:var(--radius-md);background:var(--color-input-bg);min-height:2.85rem;color:var(--color-text);transition:border-color var(--transition), box-shadow var(--transition);padding:.7rem .85rem}.admin-form input[type=file]{min-height:auto;font-size:var(--text-label);padding:.55rem}.admin-form input:hover,.admin-form select:hover,.admin-form textarea:hover{border-color:var(--color-brand-500)}.admin-form input:focus,.admin-form select:focus,.admin-form textarea:focus{border-color:var(--color-brand-600);box-shadow:var(--shadow-focus);outline:none}.admin-form textarea{resize:vertical;min-height:96px;line-height:1.55}.admin-form .btn--primary{margin-top:var(--space-2);justify-self:start}.admin-two-col{gap:var(--space-5);align-items:start;display:grid}@media (width>=1080px){.admin-two-col{grid-template-columns:minmax(320px,1fr) minmax(360px,1.1fr)}}.admin-badge{border-radius:var(--radius-full);font-size:.75rem;font-weight:var(--font-weight-bold);white-space:nowrap;border:1px solid #0000;align-items:center;padding:.2rem .55rem;display:inline-flex}.admin-badge--pending{color:var(--color-warning);background:var(--color-warning-bg);border-color:#d9770640}.admin-badge--paid{color:var(--color-success);background:var(--color-success-bg);border-color:#05966940}.admin-badge--failed,.admin-badge--cancelled{color:var(--color-danger);background:var(--color-danger-bg);border-color:#dc262640}.admin-badge--open{color:var(--color-success);background:var(--color-success-bg)}.admin-badge--coming_soon{color:var(--color-warning);background:var(--color-warning-bg)}.admin-badge--full,.admin-badge--closed{color:var(--color-text-muted);background:var(--color-bg-muted);border-color:var(--color-border)}.chip-row{gap:var(--space-2);flex-wrap:wrap;display:flex}.chip{background:var(--color-brand-50);color:var(--color-brand-600);border:1px solid var(--color-brand-100);border-radius:var(--radius-full);font-size:var(--text-label);font-weight:var(--font-weight-medium);padding:.35rem .65rem}.admin-actions{gap:var(--space-2);flex-wrap:wrap;display:flex}.login-page{grid-template-columns:1fr;min-height:100vh;display:grid}@media (width>=900px){.login-page{grid-template-columns:1.05fr .95fr}}.login-page__brand{padding:var(--space-10);color:#fff;background:radial-gradient(circle at 80% 10%, #ffffff1a, transparent 40%), linear-gradient(160deg, var(--color-gray-900), var(--color-brand-700));display:none}@media (width>=900px){.login-page__brand{justify-content:center;gap:var(--space-4);flex-direction:column;display:flex}}.login-page__brand h1{margin:0;font-size:clamp(1.6rem,3vw,2.2rem);line-height:1.2}.login-page__brand p{color:#ffffffd9;max-width:28rem;margin:0}.login-page__panel{padding:var(--space-6);background:var(--color-bg);place-items:center;display:grid}.login-card{background:var(--color-bg-elevated);border:1px solid var(--color-border);width:min(420px,100%);padding:var(--space-8);border-radius:var(--radius-lg);box-shadow:var(--shadow-md);border-top:4px solid var(--color-brand-600)}.login-card h2{margin:0 0 var(--space-2);font-size:1.35rem;font-weight:var(--font-weight-bold);color:var(--color-text)}@media (width<=900px){.admin-shell{grid-template-columns:unset;flex-direction:column;display:flex}.admin-sidebar{height:auto;max-height:none;padding:var(--space-3) var(--space-4)}.admin-nav{margin:var(--space-3) 0;flex-flow:row;overflow:auto hidden}.admin-nav a{white-space:nowrap}.admin-sidebar__foot{flex-flow:wrap;align-items:center}.admin-sidebar__foot .theme-toggle--sidebar,.admin-sidebar__foot .btn--ghost{flex:1;width:auto;min-width:9rem}.admin-main{flex:1;height:auto;min-height:0}}.mobile-app{width:100%;max-width:var(--mobile-app-width);background:var(--color-bg);flex-direction:column;min-height:100dvh;margin:0;display:flex;position:relative}.mobile-top-bar{z-index:40;align-items:center;gap:var(--space-3);min-height:var(--header-height);padding:calc(var(--space-2) + env(safe-area-inset-top,0px)) var(--space-4) var(--space-2);background:var(--shell-bar-bg);color:var(--shell-bar-fg);border-bottom:3px solid var(--color-brand-600);grid-template-columns:auto 1fr;display:grid;position:sticky;top:0}.mobile-top-bar__brand{border-radius:var(--radius-sm);background:linear-gradient(135deg, var(--color-brand-600), var(--color-brand-700));color:#fff;place-items:center;width:2rem;height:2rem;font-size:.85rem;font-weight:700;display:grid}.mobile-top-bar__title{letter-spacing:-.01em;white-space:nowrap;text-overflow:ellipsis;color:var(--shell-bar-fg);margin:0;font-size:1rem;font-weight:700;overflow:hidden}.mobile-app__main{padding:var(--space-4);padding-bottom:calc(var(--tab-bar-height) + env(safe-area-inset-bottom,0px) + var(--space-4));flex:1}.mobile-tab-bar{z-index:50;bottom:0;width:100%;max-width:none;min-height:var(--tab-bar-height);padding:.35rem .5rem calc(.35rem + env(safe-area-inset-bottom,0px));background:var(--shell-bar-bg);border-top:1px solid var(--shell-bar-border);grid-template-columns:repeat(3,1fr);display:grid;position:fixed;inset-inline:0;transform:none;box-shadow:0 -10px 30px #00000040}.mobile-tab-bar a{border-radius:var(--radius-md);min-height:3.1rem;color:var(--shell-bar-muted);font-size:.72rem;font-weight:var(--font-weight-bold);letter-spacing:.01em;transition:background var(--transition), color var(--transition);flex-direction:column;justify-content:center;align-items:center;gap:.15rem;text-decoration:none;display:flex}.mobile-tab-bar__icon{font-size:1.2rem;line-height:1}.mobile-tab-bar--4{grid-template-columns:repeat(4,1fr)}.mobile-tab-bar--4 .mobile-tab-bar__label{font-size:.62rem}.mobile-tab-bar a.active{color:#fff;background:var(--color-brand-600)}.mobile-top-bar__avatar-link{text-decoration:none}.mobile-top-bar__brand--admin{box-shadow:0 0 0 2px var(--color-brand-100), var(--shadow-xs);background:linear-gradient(135deg, var(--color-brand-600), var(--color-brand-800))}.page--compact{gap:var(--space-5)}.section-head--row{align-items:center}.text-link{color:var(--color-brand-600);font-size:.88rem;font-weight:600;text-decoration:none}.mobile-cta{margin-top:var(--space-2)}.profile-hero{gap:var(--space-4);padding:var(--space-5);border-radius:var(--radius-lg);color:#fff;background:radial-gradient(circle at 100% 0%, #ffffff24, transparent 45%), linear-gradient(145deg, var(--color-brand-600), var(--color-brand-700));box-shadow:var(--shadow-sm);grid-template-columns:auto 1fr;align-items:center;display:grid}.profile-hero--guest{background:linear-gradient(145deg, var(--color-gray-900), var(--color-gray-800))}.profile-hero__avatar{border-radius:var(--radius-md);background:#ffffff2e;border:1px solid #ffffff38;place-items:center;width:4rem;height:4rem;font-size:1.5rem;font-weight:700;display:grid}.profile-hero__avatar--guest{font-size:1.75rem}.profile-hero__name{margin:0 0 var(--space-1);font-size:1.15rem}.profile-hero__email{color:#ffffffd9;word-break:break-word;margin:0;font-size:.85rem}.profile-badge{margin-bottom:var(--space-2);border-radius:var(--radius-full);background:#ffffff2e;border:1px solid #ffffff40;padding:.15rem .55rem;font-size:.72rem;font-weight:700;display:inline-block}.menu-list__item{gap:var(--space-3);width:100%;padding:var(--space-3) 0;border-bottom:1px solid var(--color-border);color:inherit;border-inline:none;font:inherit;text-align:inherit;cursor:pointer;background:0 0;border-top:none;grid-template-columns:auto 1fr auto;align-items:center;text-decoration:none;display:grid}.menu-list__item:last-child{border-bottom:none}.menu-list__item--action:active{opacity:.85}.menu-list__icon{border-radius:var(--radius-sm);background:var(--color-bg-muted);place-items:center;width:2.25rem;height:2.25rem;font-size:1.1rem;display:grid}.menu-list__icon--admin{background:var(--color-brand-50)}.menu-list__body strong{font-size:var(--text-body-sm);font-weight:var(--font-weight-bold);display:block}.menu-list__chevron{color:var(--color-text-subtle);font-size:1.25rem;line-height:1;transform:rotate(180deg)}.grid--mobile{grid-template-columns:1fr!important}.page{gap:var(--space-8);flex-direction:column;display:flex}.hero{border-radius:var(--radius-lg);color:#fff;background:radial-gradient(circle at 10% 20%, #ffffff1f, transparent 45%), linear-gradient(135deg, var(--color-brand-700), var(--color-brand-600));box-shadow:var(--shadow-md);padding:clamp(1.5rem,4vw,2.75rem);position:relative;overflow:hidden}.hero--mobile{padding:var(--space-5)}.hero__eyebrow{margin:0 0 var(--space-2);opacity:.85;font-size:.78rem;font-weight:600}.hero__lead{color:#ffffffe0;margin:0;font-size:.92rem}.hero h1{margin:0 0 var(--space-2);letter-spacing:-.02em;font-size:1.35rem;line-height:1.3}.hero p{color:#ffffffe0;max-width:42rem;margin:0;font-size:1.02rem}.hero__stats{gap:var(--space-2);margin-top:var(--space-4);grid-template-columns:repeat(3,1fr);display:grid}.hero__stats--mobile .hero-stat{min-width:0;padding:var(--space-3)}.hero-stat{border-radius:var(--radius-md);padding:var(--space-3) var(--space-4);background:#ffffff1f;border:1px solid #ffffff2e;min-width:7rem}.hero-stat strong{font-size:1.35rem;line-height:1.2;display:block}.hero-stat span{color:#ffffffd1;font-size:.82rem}.section-head{justify-content:space-between;align-items:end;gap:var(--space-4);margin-bottom:var(--space-4);display:flex}.section-title{font-size:1.2rem;font-weight:var(--font-weight-bold);letter-spacing:-.015em;margin:0;line-height:1.35}.page-header{margin-bottom:var(--space-1)}.page-header__title{font-size:1.35rem;font-weight:var(--font-weight-bold);letter-spacing:-.02em;margin:0}.page-header__subtitle{margin:var(--space-1) 0 0;font-size:var(--text-body-sm)}.panel--soft{border-color:var(--color-border);background:var(--panel-gradient)}.settings-intro{margin:0 0 var(--space-4);font-size:var(--text-body-sm);line-height:1.6}.section-subtitle{margin:var(--space-1) 0 0;color:var(--color-text-muted);font-size:.92rem}.grid{gap:var(--space-4);grid-template-columns:1fr;display:grid}.course-card{background:var(--color-bg-elevated);border:1px solid var(--color-border);border-radius:var(--radius-lg);transition:transform var(--transition), box-shadow var(--transition), border-color var(--transition);box-shadow:var(--shadow-xs);flex-direction:column;display:flex;overflow:hidden}.course-card:active{transform:scale(.985)}.course-card__poster{aspect-ratio:16/9;background:linear-gradient(#e2e8f0,#f8fafc);position:relative}.course-card__poster img{object-fit:cover;width:100%;height:100%}.course-card__poster-placeholder{height:100%;color:var(--color-text-subtle);place-items:center;font-size:.9rem;display:grid}.course-card__body{padding:var(--space-5);gap:var(--space-3);flex-direction:column;flex:1;display:flex}.course-card__org{color:var(--color-brand-600);text-transform:none;font-size:.78rem;font-weight:600}.course-card__body h2{margin:0;font-size:1.05rem;line-height:1.45}.course-card__row{align-items:flex-start;gap:var(--space-2);color:var(--color-text-muted);font-size:.88rem;display:flex}.course-card__row-icon{opacity:.7;line-height:1.4}.course-card__footer{justify-content:space-between;align-items:center;gap:var(--space-3);padding-top:var(--space-2);margin-top:auto;display:flex}.price-tag{color:var(--color-brand-700);font-size:.98rem;font-weight:700}.badge{border-radius:var(--radius-full);border:1px solid #0000;align-items:center;gap:.35rem;padding:.25rem .65rem;font-size:.75rem;font-weight:600;display:inline-flex}.course-card__poster .badge{top:var(--space-3);-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);box-shadow:var(--shadow-xs);background:#fffffff0;position:absolute;inset-inline-start:var(--space-3)}.badge--open{color:var(--color-success);background:var(--color-success-bg);border-color:#a7f3d0}.badge--coming_soon{color:var(--color-warning);background:var(--color-warning-bg);border-color:#fde68a}.badge--full,.badge--closed{color:var(--color-danger);background:var(--color-danger-bg);border-color:#fecaca}.btn{justify-content:center;align-items:center;gap:var(--space-2);border-radius:var(--btn-radius);min-height:var(--btn-min-height);cursor:pointer;font-family:var(--font-sans);font-weight:var(--btn-font-weight);font-size:var(--btn-font-size);letter-spacing:.01em;-webkit-tap-highlight-color:transparent;transition:background var(--transition), border-color var(--transition), box-shadow var(--transition), transform var(--transition), filter var(--transition);border:1px solid #0000;padding:.65rem 1.15rem;line-height:1.25;text-decoration:none;display:inline-flex}.btn:active{transform:translateY(1px)}.btn--primary{background:linear-gradient(180deg, var(--color-brand-500), var(--color-brand-600));color:#fff;box-shadow:inset 0 1px #ffffff2e,0 4px 14px #0055d447}.btn--primary:hover{filter:brightness(1.05);box-shadow:inset 0 1px #ffffff2e,0 6px 18px #0055d452}.btn--primary:disabled{opacity:.55;cursor:not-allowed;transform:none}.btn--secondary{background:var(--color-input-bg);border-color:var(--color-border-strong);color:var(--color-text);box-shadow:var(--shadow-xs)}.btn--secondary:hover{background:var(--color-bg-muted);border-color:var(--color-brand-500)}.btn--ghost{border-color:var(--color-border-strong);color:var(--color-text);box-shadow:none;background:0 0}.btn--sm{min-height:2.5rem;font-size:var(--text-label);font-weight:var(--font-weight-semibold);border-radius:var(--radius-sm);padding:.45rem .85rem}.btn--lg{min-height:3.25rem;font-size:1.05rem}.btn--block{width:100%}.muted{color:var(--color-text-muted)}.small{font-size:.85rem}.center{text-align:center}.error{color:var(--color-danger)}.success{color:var(--color-success)}.page-state{place-items:center;gap:var(--space-3);padding:var(--space-10) var(--space-4);color:var(--color-text-muted);display:grid}.spinner{border:3px solid var(--color-border);border-top-color:var(--color-brand-600);border-radius:50%;width:2rem;height:2rem;animation:.8s linear infinite spin}@keyframes spin{to{transform:rotate(360deg)}}.empty-state{border:1px dashed var(--color-border-strong);background:var(--color-bg-elevated);border-radius:var(--radius-lg);padding:var(--space-8);text-align:center}.empty-state__icon{width:3rem;height:3rem;margin:0 auto var(--space-3);background:var(--color-bg-muted);color:var(--color-text-subtle);border-radius:50%;place-items:center;font-size:1.4rem;display:grid}.empty-state h3{margin:0 0 var(--space-2)}.alert{border-radius:var(--radius-md);padding:var(--space-3) var(--space-4);border:1px solid #0000;font-size:.92rem}.alert--error{background:var(--color-danger-bg);color:#991b1b;border-color:#fecaca}.alert--success{background:var(--color-success-bg);color:#065f46;border-color:#a7f3d0}.alert--info{color:#1e40af;background:#eff6ff;border-color:#bfdbfe}.seats-progress__head{margin-bottom:var(--space-1);justify-content:space-between;display:flex}.seats-progress__track{background:var(--color-bg-muted);border-radius:var(--radius-full);height:.45rem;overflow:hidden}.seats-progress__bar{border-radius:inherit;background:linear-gradient(90deg, var(--color-brand-500), var(--color-brand-600));height:100%;transition:width 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