:root{--primary:#1d4ed8;--primary-dark:#1e3a8a;--accent:#059669;--ink:#172033;--muted:#64748b;--surface:#fff;--background:#f5f7fb;--border:#e2e8f0;--shadow:0 12px 35px rgba(30,58,138,.08)}
*{box-sizing:border-box}
body{margin:0;color:var(--ink);background:var(--background);font-family:Tahoma,Arial,sans-serif;line-height:1.6}
.page-header{color:#fff;background:radial-gradient(circle at 10% 20%,rgba(255,255,255,.14),transparent 28%),linear-gradient(135deg,var(--primary-dark),var(--primary));padding:42px 20px 64px}
.header-content,.page-content{width:min(1180px,100%);margin-inline:auto}
.header-content{display:flex;align-items:center;justify-content:space-between;gap:32px}
.eyebrow{margin:0 0 3px;color:#bfdbfe;font-size:.82rem;font-weight:700;letter-spacing:.08em}
.page-header h1{margin:0;font-size:clamp(1.65rem,3vw,2.5rem);line-height:1.35}
.header-subtitle{margin:6px 0 0;color:#dbeafe}
.login-links{display:flex;flex-wrap:wrap;gap:10px}
.login-link{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:46px;padding:10px 16px;border:1px solid rgba(255,255,255,.32);border-radius:10px;color:#fff;text-decoration:none;font-weight:700;transition:transform .2s ease,background-color .2s ease,box-shadow .2s ease}
.admin-link{background:rgba(255,255,255,.15)}.parent-link{background:var(--accent);border-color:var(--accent)}
.login-link:hover,.login-link:focus-visible{transform:translateY(-2px);background-color:rgba(255,255,255,.25);box-shadow:0 8px 20px rgba(0,0,0,.12)}
.parent-link:hover,.parent-link:focus-visible{background-color:#047857}
.page-content{position:relative;margin-top:-34px;padding:0 20px 50px}
.cards{display:grid;grid-template-columns:.85fr 1.15fr;gap:20px}
.card,.chart-card{background:var(--surface);border:1px solid var(--border);border-radius:18px;box-shadow:var(--shadow)}
.card{padding:22px}.card-heading{display:flex;align-items:center;gap:12px;padding-bottom:16px;border-bottom:1px solid var(--border)}
.heading-icon{display:grid;place-items:center;width:44px;height:44px;flex:0 0 44px;border-radius:12px;background:#eff6ff;font-size:1.35rem}
.card h2,.section-heading h2{margin:0;font-size:1.18rem}.card-heading p{margin:1px 0 0;color:var(--muted);font-size:.85rem}
.lb-list{display:grid;gap:8px;margin:14px 0 0;padding:0;list-style:none}
.lb-item{display:flex;align-items:center;gap:10px;min-height:48px;padding:8px 11px;border:1px solid #edf1f7;border-radius:11px;background:#fbfcfe}
.medal{width:30px;flex:0 0 30px;text-align:center;font-size:1.15rem}.student-details{display:flex;flex-direction:column;min-width:0}.student-details small,.muted{color:var(--muted)}
.school-heading{margin:18px 0 0;padding-right:11px;border-right:3px solid var(--primary);color:var(--primary-dark);font-size:.96rem}
.school-heading+.lb-list{grid-template-columns:repeat(3,minmax(0,1fr));margin-top:8px}
.statistics-section{margin-top:28px}.section-heading{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-bottom:14px}.section-heading .eyebrow{color:var(--primary)}
.total-summary{display:flex;align-items:center;gap:12px;color:var(--muted)}.total-summary strong{display:grid;place-items:center;min-width:52px;height:42px;padding:0 10px;border-radius:11px;color:#fff;background:var(--primary);font-size:1.15rem}
.charts-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}.chart-card{padding:20px}.chart-card h3{margin:0 0 12px;font-size:1rem}.chart-container{position:relative;height:360px}
@media(max-width:900px){.header-content{align-items:flex-start;flex-direction:column}.login-links{width:100%}.login-link{flex:1 1 230px}.cards,.charts-grid{grid-template-columns:1fr}.school-heading+.lb-list{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:560px){.page-header{padding:28px 14px 56px}.page-content{padding-inline:12px}.card,.chart-card{padding:16px;border-radius:14px}.login-link{width:100%}.school-heading+.lb-list{grid-template-columns:1fr}.section-heading{align-items:flex-end}.total-summary{flex-direction:column;gap:3px}.chart-container{height:300px}}
@media(prefers-reduced-motion:reduce){.login-link{transition:none}}
.student-link{background:#176b52;color:#fff}
.install-app{position:relative;z-index:3;display:flex;align-items:center;gap:13px;width:min(760px,calc(100% - 28px));margin:-28px auto 48px;padding:14px 48px 14px 16px;border:1px solid #bfdbfe;border-radius:16px;background:#fff;color:var(--ink);box-shadow:0 14px 35px rgba(30,58,138,.16)}
.install-app[hidden]{display:none}
.install-app-icon{display:grid;place-items:center;width:44px;height:44px;flex:0 0 44px;border-radius:12px;background:#eff6ff;font-size:1.4rem}
.install-app-copy{display:flex;flex:1;flex-direction:column;min-width:0}.install-app-copy span{color:var(--muted);font-size:.86rem}
#installAppButton{min-height:42px;padding:9px 18px;border:0;border-radius:10px;background:var(--primary);color:#fff;font:inherit;font-weight:700;cursor:pointer;white-space:nowrap}
#installAppButton:hover,#installAppButton:focus-visible{background:var(--primary-dark)}
.install-dismiss{position:absolute;top:7px;left:9px;border:0;background:transparent;color:#64748b;font-size:1.4rem;cursor:pointer}
@media(max-width:620px){.install-app{align-items:stretch;flex-wrap:wrap;margin-top:-34px;padding:14px 46px 14px 14px}.install-app-copy{flex-basis:calc(100% - 60px)}#installAppButton{width:100%;margin-right:57px}}