:root{--bg:#050505;--panel:#0d0d0f;--panel2:#131316;--line:#252526;--gold:#d4af37;--soft:#f0d77a;--text:#f7f4ec;--muted:#9c9c9f}*{box-sizing:border-box}html,body,#root{margin:0;min-height:100%;background:var(--bg);color:var(--text);font-family:Arial,sans-serif}button,input,textarea{font:inherit}button{cursor:pointer}.auth{min-height:100vh;display:grid;place-items:center;padding:24px;background:radial-gradient(circle at 80% 10%,#58441645,transparent 30%),#050505}.auth-card{width:min(460px,100%);padding:28px;border:1px solid #2b2415;background:#0c0c0ff7;border-radius:28px;box-shadow:0 24px 80px #000;text-align:center}.logo{display:grid;place-items:center;color:var(--gold);width:120px}.auth .logo{margin:auto;width:210px}.logo span{font-size:28px}.logo strong{font:700 58px/1 Georgia,serif}.auth .logo strong{font-size:92px}.logo small{letter-spacing:.5em;color:var(--soft)}.auth-card h1{font-size:28px;margin:20px 0 6px}.sub,.small,.muted,small{color:var(--muted);line-height:1.5}.center{text-align:center}.form{display:grid;gap:9px;text-align:left}.form label,label{font-size:11px;text-transform:uppercase;letter-spacing:.08em;color:#c8c8cb}.form input,.form textarea,.auth input{width:100%;border:1px solid #2e2e31;background:#151518;color:#fff;padding:12px 13px;border-radius:12px}.form textarea{min-height:85px}.btn{border-radius:12px;padding:12px 16px;border:1px solid transparent;font-weight:800}.gold{background:linear-gradient(var(--soft),var(--gold));color:#15110a}.dark{background:#17171a;color:#fff;border-color:#2c2c2f}.notice{padding:15px;background:#172619;border:1px solid #315f35;border-radius:12px}.error{padding:11px;background:#351717;color:#ffb8b8;border-radius:10px}.app-shell{min-height:100vh;display:grid;grid-template-columns:250px 1fr;background:radial-gradient(circle at top right,#d4af3714,transparent 28%),linear-gradient(#080808,#040404)}.sidebar{background:#070708;border-right:1px solid #1d1d1f;padding:20px;position:sticky;top:0;height:100vh;display:flex;flex-direction:column}.brand{display:flex;align-items:center;gap:10px;margin-bottom:20px}.brand .logo{width:62px}.brand .logo strong{font-size:31px}.brand .logo span{font-size:13px}.brand .logo small{font-size:6px}.brand b{font:19px Georgia,serif}.brand>div:last-child small,.user-card small{display:block}.user-card{background:#111113;border:1px solid #252527;border-radius:16px;padding:12px;margin-bottom:18px}.sidebar nav{overflow:auto}.sidebar nav button{width:100%;display:block;background:transparent;color:#c8c8ca;border:0;border-radius:11px;padding:10px 12px;margin:2px 0;text-align:left}.sidebar nav button:hover,.sidebar nav button.active{background:linear-gradient(90deg,#2b2414,#131315);color:var(--soft)}.sidebar>.btn{margin-top:auto}.content{padding:26px;max-width:1240px;width:100%;margin:0 auto}.page-title{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-bottom:18px}.page-title h1,.page-title h2{margin:0}.pill,.status{display:inline-flex;padding:5px 9px;border-radius:999px;background:#292211;color:var(--soft);border:1px solid #4d4020;font-size:11px}.grid{display:grid;grid-template-columns:repeat(12,1fr);gap:16px}.span8{grid-column:span 8}.span6{grid-column:span 6}.span4{grid-column:span 4}.card{background:linear-gradient(#121214,#0c0c0e);border:1px solid #252528;border-radius:18px;padding:18px}.hero-update{overflow:hidden;padding:0}.hero-update img{width:100%;height:210px;object-fit:cover;display:block;filter:brightness(.72)}.hero-update .body{padding:18px}.quick-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:9px}.quick{padding:13px 7px;border:1px solid #27272a;border-radius:14px;text-align:center;background:#101012;color:#fff}.quick span,.quick b{display:block}.quick span{font-size:20px;margin-bottom:6px}.quick b{font-size:11px}.update{padding:14px 0;border-bottom:1px solid #252527}.folder-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:14px}.row{display:flex;justify-content:space-between;gap:10px;padding:12px 0;border-bottom:1px solid #28282b}.row small{display:block}.row-link{width:100%;display:flex;justify-content:space-between;padding:14px;background:transparent;color:#fff;border:0;border-bottom:1px solid #29292c}.empty{text-align:center;max-width:700px;margin:50px auto;padding:60px 25px}.big-icon{font-size:45px}.empty p{color:var(--muted)}table{width:100%;border-collapse:collapse}th,td{text-align:left;padding:12px;border-bottom:1px solid #252527;font-size:12px}dl{display:grid;grid-template-columns:110px 1fr;gap:12px}dd{margin:0}.calendar-head{display:grid;grid-template-columns:1fr minmax(320px,520px);gap:20px;margin-bottom:20px}.mobile-nav{display:none}.loading{min-height:100vh;display:grid;place-items:center}@media(max-width:900px){.app-shell{grid-template-columns:1fr}.sidebar{display:none}.content{padding:18px 16px 88px}.span8,.span6,.span4{grid-column:span 12}.quick-grid{grid-template-columns:repeat(2,1fr)}.calendar-head{grid-template-columns:1fr}.mobile-nav{position:fixed;bottom:0;left:0;right:0;background:#09090a;border-top:1px solid #27272a;display:grid;grid-template-columns:repeat(5,1fr);z-index:20}.mobile-nav button{background:transparent;color:#aaa;border:0;padding:9px 4px}.mobile-nav small{display:block;font-size:9px}}@media(max-width:500px){.folder-grid{grid-template-columns:1fr}.auth-card{padding:24px 19px}.hero-update img{height:170px}}select{width:100%;border:1px solid #2e2e31;background:#151518;color:#fff;padding:12px 13px;border-radius:12px;margin-top:6px}details.admin-create{margin-bottom:16px}details.admin-create summary{cursor:pointer;font-weight:800;color:var(--soft)}details.admin-create .form{margin-top:18px}.mini{padding:7px 10px;font-size:11px;margin-left:5px}.danger-link,.link{border:0;background:transparent;color:var(--soft);padding:4px;text-decoration:underline}.danger-link{color:#ff9292}.upload{display:block;text-align:center;margin-top:14px}.upload input{display:none}.file-row{display:flex;justify-content:space-between;align-items:center;border-top:1px solid #252527;padding:10px 0}.admin-stack{display:grid;gap:16px}.table-wrap{overflow-x:auto}.editable-block{border-bottom:1px solid #28282b}.editable-block>.form{padding:16px 0}.editable-block:last-child{border-bottom:0}.chat-layout{display:grid;grid-template-columns:250px 1fr;gap:16px}.chat-channels{align-self:start}.chat-channels>button{display:block;width:100%;border:0;border-radius:10px;background:transparent;color:#ccc;padding:11px;text-align:left}.chat-channels>button.active{background:#292211;color:var(--soft)}.chat-channels details{margin-top:16px}.chat-channels details .form{margin-top:12px}.chat-panel{min-height:600px;display:flex;flex-direction:column}.chat-head{border-bottom:1px solid #29292c}.messages{flex:1;max-height:520px;overflow:auto;padding:12px 0}.message{margin:10px 0;padding:13px;background:#151518;border-radius:14px}.message.pinned{border:1px solid #6a5624;background:#1b170e}.message b,.message small{display:block}.message p{white-space:pre-wrap}.check{display:flex;align-items:center;gap:8px}.check input{width:auto}.competition{border-color:#332b19}.deadline-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin:18px 0}.deadline-grid>div{padding:13px;background:#151518;border-radius:12px}.deadline-grid small,.deadline-grid b{display:block}.preline{white-space:pre-wrap;line-height:1.6}.inline-btn{display:inline-block;text-decoration:none;margin-top:10px}@media(max-width:800px){.chat-layout{grid-template-columns:1fr}.chat-panel{min-height:500px}.deadline-grid{grid-template-columns:1fr}}.teacher-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;margin:18px 0 28px}.teacher-card{position:relative;text-align:center;transition:.2s ease;border-color:#29292d}.teacher-card:hover,.teacher-card.selected{transform:translateY(-2px);border-color:#9a791d;box-shadow:0 18px 40px #0008}.teacher-avatar{width:78px;height:78px;margin:0 auto 16px;display:grid;place-items:center;border-radius:50%;background:linear-gradient(145deg,#e1bd45,#8e6810);color:#0a0a0c;font:800 24px/1 Arial}.teacher-card h2{margin-bottom:5px}.teacher-card h3 small{font-size:12px;color:#9b9ba2;font-weight:500}.teacher-specialties{color:#e1bd45;font-weight:700}.private-request-form{max-width:850px;margin-inline:auto;border-color:#6d571b}.private-request{padding:18px 0;border-bottom:1px solid #29292d}.private-request:last-child{border-bottom:0}.private-request .form{margin-top:16px;padding:16px;border-radius:12px;background:#151518}.private-request .status{display:inline-block;margin-bottom:8px}.steps{padding-left:20px;line-height:2;color:#d2d2d7}@media(max-width:1000px){.teacher-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}@media(max-width:650px){.teacher-grid{grid-template-columns:1fr}.teacher-card{padding:22px}.private-request .row{align-items:flex-start}}
