:root{--ink:#17202a;--muted:#64748b;--line:#dbe4ef;--paper:#fff;--soft:#f6f8fb;--brand:#0f766e;--brand-dark:#0b4f4a;--accent:#f97316;--pop:#2563eb;--danger:#dc2626;--success:#15803d;--shadow:0 24px 70px #141f2c29}*{box-sizing:border-box}html,body{min-height:100%}body{color:var(--ink);background:linear-gradient(118deg,#0f766e33,#0000 30%),linear-gradient(142deg,#f0fdfa 0%,#eff6ff 48%,#fff7ed 100%);margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}button,input,textarea{font:inherit}button{cursor:pointer}a{color:inherit}.page-shell{align-items:center;min-height:100vh;padding:28px;display:grid}.student-page{grid-template-columns:minmax(0,1fr) minmax(360px,.72fr);align-items:stretch;gap:clamp(20px,4vw,54px);width:100%;min-width:0;max-width:1120px;margin:0 auto;display:grid}.brand-bar{justify-content:space-between;align-items:center;gap:16px;margin-bottom:clamp(38px,8vw,88px);display:flex}.brand-mark{background:linear-gradient(135deg, var(--brand), var(--pop));color:#fff;border-radius:8px;justify-content:center;align-items:center;width:44px;height:44px;display:inline-flex;box-shadow:0 14px 38px #0f766e47}.brand-title{align-items:center;gap:12px;font-weight:800;display:flex}.admin-link,.ghost-button{color:var(--brand-dark);background:#ffffffb8;border:1px solid #0f766e42;border-radius:8px;align-items:center;gap:8px;padding:10px 13px;font-weight:700;text-decoration:none;display:inline-flex}.hero-panel{flex-direction:column;justify-content:center;min-width:0;padding:30px 0;display:flex}.eyebrow{color:var(--brand-dark);letter-spacing:0;text-transform:uppercase;margin-bottom:14px;font-size:13px;font-weight:800}h1{letter-spacing:0;overflow-wrap:anywhere;max-width:760px;margin:0;font-size:clamp(44px,7vw,84px);line-height:.94}.lead{color:#475569;max-width:610px;margin:22px 0 0;font-size:clamp(16px,2vw,19px);line-height:1.65}.hero-highlights{flex-wrap:wrap;gap:10px;margin-top:26px;display:flex}.hero-highlights span{color:#164e63;background:#ffffffb8;border:1px solid #0f766e33;border-radius:999px;align-items:center;gap:8px;min-height:36px;padding:0 13px;font-size:14px;font-weight:800;display:inline-flex;box-shadow:0 10px 26px #141f2c14}.info-strip{grid-template-columns:repeat(3,1fr);gap:12px;margin-top:48px;display:grid}.info-tile{background:#ffffffa8;border:1px solid #64748b2e;border-radius:8px;min-height:116px;padding:16px}.info-tile svg{color:var(--brand)}.info-tile strong{margin-top:10px;font-size:15px;display:block}.info-tile span{color:var(--muted);margin-top:4px;font-size:13px;line-height:1.45;display:block}.card{box-shadow:var(--shadow);-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);background:#ffffffe0;border:1px solid #64748b33;border-radius:8px}.check-card{align-self:center;padding:clamp(20px,4vw,32px);position:relative;overflow:hidden}.check-card:before{content:"";background:linear-gradient(90deg, var(--brand), var(--pop), var(--accent));height:6px;position:absolute;inset:0 0 auto}.form-heading{margin-bottom:18px}.mini-badge{color:#155e75;background:#ecfeff;border-radius:999px;align-items:center;min-height:28px;margin-bottom:12px;padding:0 10px;font-size:12px;font-weight:900;display:inline-flex}.section-title{margin:0;font-size:24px;line-height:1.15}.section-copy{color:var(--muted);margin:8px 0 24px;line-height:1.55}.field{gap:8px;margin-bottom:16px;display:grid}.field label{color:#334155;font-size:14px;font-weight:800}.input-wrap{border:1px solid var(--line);background:#fff;border-radius:8px;align-items:center;gap:10px;min-height:50px;padding:0 14px;display:flex}.input-wrap:focus-within{border-color:#0f766eb3;box-shadow:0 0 0 4px #0f766e1f}.input-wrap svg{color:#94a3b8;flex:none}.input-wrap input,.input-wrap textarea{width:100%;color:var(--ink);background:0 0;border:0;outline:0}.primary-button,.danger-button,.icon-button{border:0;border-radius:8px;justify-content:center;align-items:center;gap:9px;min-height:46px;font-weight:800;display:inline-flex}.primary-button{background:linear-gradient(135deg, var(--brand), var(--pop));color:#fff;width:100%;box-shadow:0 16px 34px #2563eb33}.primary-button:hover{filter:saturate(1.08)brightness(.96)}.primary-button:disabled,.danger-button:disabled,.ghost-button:disabled{cursor:not-allowed;opacity:.7}.danger-button{color:#991b1b;background:#fee2e2;padding:0 14px}.icon-button{border:1px solid var(--line);color:#334155;background:#fff;width:38px;min-height:38px}.alert{border-radius:8px;margin-top:16px;padding:13px 14px;font-weight:700;line-height:1.45}.alert.error{color:var(--danger);background:#fef2f2;border:1px solid #fecaca}.alert.success{color:var(--success);background:#f0fdf4;border:1px solid #bbf7d0}.form-alert{margin:0 0 16px}.result-box{color:#fff;background:linear-gradient(135deg,#0f766e,#2563eb);border-radius:8px;margin-top:20px;padding:22px}.demo-card{color:#1f2937;text-align:left;background:linear-gradient(135deg,#fff7ed,#eff6ff);border:1px solid #f9731647;border-radius:8px;justify-content:space-between;align-items:center;gap:12px;width:100%;margin-bottom:18px;padding:14px;display:flex;box-shadow:0 12px 28px #141f2c14}.demo-card strong,.demo-card small{display:block}.demo-card strong{font-size:14px}.demo-card small{color:#64748b;margin-top:3px;font-size:12px;font-weight:800}.demo-card svg{color:var(--accent);flex:none}.result-label{opacity:.82;text-transform:uppercase;font-size:13px;font-weight:800}.class-name{overflow-wrap:anywhere;margin:8px 0 0;font-size:42px;font-weight:900;line-height:1}.student-name{margin:14px 0 0;font-size:18px;font-weight:800}.result-meta{color:#ffffffd1;margin:10px 0 0;line-height:1.55}.result-page-shell{place-items:center}.result-page{gap:22px;width:min(720px,100%);display:grid}.result-brand{justify-content:center;font-size:20px}.result-card{text-align:center;padding:clamp(24px,6vw,48px)}.result-celebrate{background:linear-gradient(135deg,#ffffffeb,#ffffffc7),linear-gradient(135deg,#0f766e33,#2563eb33)}.result-icon{color:#fff;background:linear-gradient(135deg, var(--accent), var(--pop));border-radius:18px;justify-content:center;align-items:center;width:68px;height:68px;margin-bottom:20px;display:inline-flex;box-shadow:0 18px 40px #f9731638}.result-class{color:#0f172a;max-width:none;margin:4px 0 22px;font-size:clamp(76px,18vw,148px);line-height:.86}.result-student{border:1px solid var(--line);text-align:left;background:#fff;border-radius:999px;align-items:center;gap:12px;width:fit-content;max-width:100%;margin:0 auto;padding:10px 16px;display:inline-flex}.result-student svg{color:var(--brand);flex:none}.result-student strong,.result-student span{display:block}.result-student strong{font-size:16px}.result-student span{color:var(--muted);font-size:13px;font-weight:800}.result-note{color:#475569;max-width:520px;margin:18px auto 0;line-height:1.6}.result-back{width:min(260px,100%);margin:28px auto 0;text-decoration:none}.result-empty-title{max-width:none;margin-bottom:14px;font-size:clamp(34px,7vw,58px);line-height:1}.admin-page{max-width:1220px;margin:0 auto}.admin-topbar{justify-content:space-between;align-items:center;gap:16px;margin-bottom:22px;display:flex}.admin-actions{align-items:center;gap:10px;display:flex}.admin-grid{grid-template-columns:380px minmax(0,1fr);gap:20px;display:grid}.panel{background:#ffffffe6;border:1px solid #64748b33;border-radius:8px;padding:20px}.stats-row{grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin-bottom:16px;display:grid}.stat{border:1px solid var(--line);background:#fff;border-radius:8px;min-height:86px;padding:14px}.stat span{color:var(--muted);font-size:13px;font-weight:800}.stat strong{margin-top:8px;font-size:28px;display:block}.form-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;display:grid}.form-grid .full{grid-column:1/-1}.textarea-wrap{align-items:flex-start;min-height:86px;padding-top:12px}.admin-form-actions{grid-template-columns:1fr auto;gap:10px;margin-top:4px;display:grid}.import-box{border-top:1px solid var(--line);margin-top:16px;padding-top:16px}.file-input{background:#f8fafc;border:1px dashed #94a3b8;border-radius:8px;justify-content:center;align-items:center;gap:8px;width:100%;min-height:50px;padding:14px;font-weight:800;display:inline-flex}.template-link{min-height:50px;color:var(--brand-dark);text-align:center;background:#ecfeff;border:1px solid #0f766e3d;border-radius:8px;justify-content:center;align-items:center;padding:0 14px;font-size:14px;font-weight:800;text-decoration:none;display:inline-flex}.template-link:hover{text-decoration:underline}.import-actions{grid-template-columns:1fr;gap:10px;display:grid}.search-row{grid-template-columns:minmax(0,1fr) auto;gap:10px;margin-bottom:14px;display:grid}.table-wrap{border:1px solid var(--line);background:#fff;border-radius:8px;overflow:auto}table{border-collapse:collapse;width:100%;min-width:720px}th,td{text-align:left;vertical-align:top;border-bottom:1px solid #edf2f7;padding:13px 14px}th{color:#475569;text-transform:uppercase;background:#f8fafc;font-size:12px}td{color:#1e293b}.row-actions{gap:8px;display:flex}.login-shell{place-items:center;min-height:100vh;padding:24px;display:grid}.login-card{width:min(430px,100%);padding:28px}.empty-state{color:var(--muted);text-align:center;padding:34px 20px}@media (max-width:960px){.student-page,.admin-grid{grid-template-columns:1fr}.hero-panel{padding:10px 0 0}.brand-bar{margin-bottom:28px}.student-page{gap:18px}}@media (max-width:680px){.page-shell{align-items:start;min-height:auto;padding:16px}.brand-bar,.admin-topbar{flex-direction:column;align-items:flex-start}.info-strip,.stats-row,.form-grid,.search-row,.admin-form-actions{grid-template-columns:1fr}h1{font-size:36px;line-height:1}.check-card,.panel,.login-card{padding:20px}.brand-title{font-size:14px}.lead{margin-top:16px}.hero-highlights{grid-template-columns:repeat(2,minmax(0,1fr));margin-top:18px;display:grid}.hero-highlights span{white-space:nowrap;justify-content:center;padding:0 10px}.class-name{font-size:36px}.result-page{gap:16px}.result-brand{justify-content:flex-start}.result-class{font-size:clamp(70px,24vw,108px)}.result-student{border-radius:8px;width:100%}}