:root{
  --blue:#1e40af; --blue-600:#1d4ed8; --blue-50:#eff6ff;
  --green:#15803d; --green-500:#22c55e; --green-50:#f0fdf4;
  --ink:#0f172a; --ink-2:#334155; --muted:#64748b;
  --bg:#ffffff; --surface:#f8fafc; --border:#e2e8f0;
  --warn:#f59e0b; --danger:#ef4444; --info:#0ea5e9;
  --grad: linear-gradient(135deg,#1e40af 0%, #15803d 100%);
  --shadow-sm:0 1px 2px rgba(15,23,42,.06);
  --shadow:0 10px 30px -12px rgba(15,23,42,.18);
  --shadow-lg:0 20px 50px -20px rgba(30,64,175,.35);
  --r:14px; --r-sm:10px;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{font-family:'Inter',system-ui,-apple-system,Segoe UI,Roboto,sans-serif;color:var(--ink);background:var(--bg);line-height:1.55;-webkit-font-smoothing:antialiased}
h1,h2,h3,h4{font-family:'Plus Jakarta Sans','Inter',sans-serif;font-weight:800;letter-spacing:-.02em;color:var(--ink);margin:0 0 .5em}
h1{font-size:clamp(2rem,4.4vw,3.4rem);line-height:1.05}
h2{font-size:clamp(1.6rem,3vw,2.4rem);line-height:1.1}
h3{font-size:1.25rem}
p{margin:0 0 1em;color:var(--ink-2)}
a{color:var(--blue);text-decoration:none}
img{max-width:100%;display:block}
.container{max-width:1200px;margin:0 auto;padding:0 24px}

/* ---------- Header ---------- */
.topbar{background:var(--ink);color:#cbd5e1;font-size:.85rem}
.topbar .container{display:flex;justify-content:space-between;align-items:center;padding:.5rem 24px;flex-wrap:wrap;gap:.5rem}
.topbar a{color:#cbd5e1}
.topbar a:hover{color:#fff}
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.92);backdrop-filter:blur(12px);border-bottom:1px solid var(--border)}
.nav{display:flex;align-items:center;justify-content:space-between;padding:1rem 0;gap:1rem}
.brand{display:flex;align-items:center;gap:.7rem;font-weight:800;font-size:1.15rem;color:var(--ink)}
.brand-logo{width:42px;height:42px;border-radius:12px;background:var(--grad);display:grid;place-items:center;color:#fff;font-weight:900;box-shadow:var(--shadow)}
.nav-links{display:none;gap:1.4rem;align-items:center}
.nav-links a{color:var(--ink-2);font-weight:500;font-size:.95rem}
.nav-links a:hover,.nav-links a.active{color:var(--blue)}
.nav-cta{display:flex;gap:.5rem;align-items:center}
@media(min-width:900px){.nav-links{display:flex}}

.btn{display:inline-flex;align-items:center;gap:.5rem;padding:.7rem 1.2rem;border-radius:10px;font-weight:600;font-size:.95rem;cursor:pointer;border:1px solid transparent;transition:all .2s;text-decoration:none}
.btn-primary{background:var(--grad);color:#fff;box-shadow:var(--shadow)}
.btn-primary:hover{transform:translateY(-1px);box-shadow:var(--shadow-lg);color:#fff}
.btn-outline{border-color:var(--border);color:var(--ink);background:#fff}
.btn-outline:hover{border-color:var(--blue);color:var(--blue)}
.btn-ghost{color:var(--ink-2);background:transparent}
.btn-sm{padding:.45rem .8rem;font-size:.85rem}
.btn-block{width:100%;justify-content:center}

/* ---------- Hero ---------- */
.hero{position:relative;padding:80px 0 100px;overflow:hidden;background:linear-gradient(180deg,#eff6ff 0%,#f0fdf4 100%)}
.hero-grid{display:grid;grid-template-columns:1fr;gap:48px;align-items:center}
@media(min-width:900px){.hero-grid{grid-template-columns:1.05fr 1fr}}
.eyebrow{display:inline-flex;align-items:center;gap:.5rem;background:#fff;border:1px solid var(--border);padding:.4rem .8rem;border-radius:999px;font-size:.8rem;font-weight:600;color:var(--blue);box-shadow:var(--shadow-sm)}
.eyebrow .dot{width:8px;height:8px;border-radius:999px;background:var(--green-500);box-shadow:0 0 0 4px rgba(34,197,94,.25)}
.hero h1 span{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero p.lead{font-size:1.15rem;max-width:540px}
.hero-actions{display:flex;gap:.8rem;flex-wrap:wrap;margin-top:1.5rem}
.hero-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:1rem;margin-top:2.5rem;max-width:520px}
.hero-stat .v{font-family:'Plus Jakarta Sans',sans-serif;font-size:1.6rem;font-weight:800;color:var(--ink)}
.hero-stat .l{font-size:.8rem;color:var(--muted)}
.hero-art{position:relative;border-radius:24px;overflow:hidden;box-shadow:var(--shadow-lg);aspect-ratio:4/3}
.hero-art img{width:100%;height:100%;object-fit:cover}
.hero-float{position:absolute;background:#fff;border-radius:14px;padding:.8rem 1rem;box-shadow:var(--shadow);display:flex;align-items:center;gap:.7rem;font-size:.85rem}
.hero-float.f1{top:18px;left:-12px}
.hero-float.f2{bottom:18px;right:-12px}
.hero-float .ic{width:36px;height:36px;border-radius:10px;background:var(--blue-50);color:var(--blue);display:grid;place-items:center;font-weight:800}

/* ---------- Sections ---------- */
section{padding:80px 0}
.section-head{text-align:center;max-width:680px;margin:0 auto 50px}
.section-head .eyebrow{margin-bottom:1rem}
.section-head p{font-size:1.05rem}

/* ---------- Cards / Grid ---------- */
.grid{display:grid;gap:24px}
.grid-2{grid-template-columns:repeat(auto-fit,minmax(280px,1fr))}
.grid-3{grid-template-columns:repeat(auto-fit,minmax(260px,1fr))}
.grid-4{grid-template-columns:repeat(auto-fit,minmax(220px,1fr))}
.card{background:#fff;border:1px solid var(--border);border-radius:var(--r);padding:24px;transition:all .25s;box-shadow:var(--shadow-sm)}
.card:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:transparent}
.card-icon{width:48px;height:48px;border-radius:12px;background:var(--blue-50);color:var(--blue);display:grid;place-items:center;margin-bottom:1rem;font-size:1.4rem}
.card.green .card-icon{background:var(--green-50);color:var(--green)}
.card h3{margin-bottom:.4rem}
.card p{font-size:.93rem;margin:0}

.feature-card{background:#fff;border:1px solid var(--border);border-radius:18px;overflow:hidden;transition:all .25s}
.feature-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.feature-card .img{aspect-ratio:16/10;overflow:hidden}
.feature-card .img img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.feature-card:hover .img img{transform:scale(1.06)}
.feature-card .body{padding:20px}
.feature-card .tag{display:inline-block;font-size:.7rem;font-weight:700;text-transform:uppercase;letter-spacing:.05em;color:var(--green);background:var(--green-50);padding:.25rem .6rem;border-radius:6px;margin-bottom:.6rem}

/* ---------- About strip ---------- */
.about-grid{display:grid;grid-template-columns:1fr;gap:48px;align-items:center}
@media(min-width:900px){.about-grid{grid-template-columns:1fr 1fr}}
.about-img{border-radius:24px;overflow:hidden;box-shadow:var(--shadow-lg);aspect-ratio:4/3}
.about-img img{width:100%;height:100%;object-fit:cover}
.check-list{list-style:none;padding:0;margin:1.5rem 0}
.check-list li{padding:.6rem 0 .6rem 2rem;position:relative;color:var(--ink-2)}
.check-list li::before{content:"✓";position:absolute;left:0;top:.55rem;width:22px;height:22px;border-radius:6px;background:var(--green);color:#fff;display:grid;place-items:center;font-size:.75rem;font-weight:900}

/* ---------- Principal ---------- */
.principal{background:linear-gradient(135deg,#eff6ff,#f0fdf4);border-radius:28px;padding:48px;display:grid;grid-template-columns:1fr;gap:32px;align-items:center}
@media(min-width:800px){.principal{grid-template-columns:280px 1fr}}
.principal-img{aspect-ratio:4/5;border-radius:20px;overflow:hidden;box-shadow:var(--shadow-lg)}
.principal-img img{width:100%;height:100%;object-fit:cover}
.principal blockquote{font-size:1.15rem;color:var(--ink);font-style:italic;border-left:4px solid var(--green);padding-left:1.2rem;margin:1rem 0}

/* ---------- Stats band ---------- */
.stats-band{background:var(--grad);color:#fff;padding:60px 0;text-align:center}
.stats-band .grid-4{gap:24px}
.stat-item .v{font-family:'Plus Jakarta Sans',sans-serif;font-size:2.6rem;font-weight:800;line-height:1}
.stat-item .l{opacity:.9;margin-top:.4rem;font-size:.95rem}

/* ---------- News / Events list ---------- */
.event-row{display:flex;gap:1rem;align-items:center;padding:1rem;border:1px solid var(--border);border-radius:14px;background:#fff;margin-bottom:.7rem;transition:all .2s}
.event-row:hover{border-color:var(--blue);transform:translateX(2px)}
.event-date{flex:0 0 64px;height:64px;border-radius:12px;background:var(--grad);color:#fff;display:grid;place-items:center;text-align:center}
.event-date .d{font-size:1.4rem;font-weight:800;line-height:1}
.event-date .m{font-size:.7rem;text-transform:uppercase;letter-spacing:.08em}

/* ---------- Gallery ---------- */
.gallery{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:14px}
.gallery a{border-radius:14px;overflow:hidden;aspect-ratio:4/3;display:block;background:var(--surface)}
.gallery img{width:100%;height:100%;object-fit:cover;transition:transform .4s}
.gallery a:hover img{transform:scale(1.08)}

/* ---------- Forms ---------- */
.form-grid{display:grid;gap:16px;grid-template-columns:1fr}
@media(min-width:700px){.form-grid.cols-2{grid-template-columns:1fr 1fr}}
.field{display:flex;flex-direction:column;gap:.4rem}
.field label{font-size:.85rem;font-weight:600;color:var(--ink)}
.field input,.field select,.field textarea{font:inherit;padding:.7rem .9rem;border:1px solid var(--border);border-radius:10px;background:#fff;color:var(--ink);transition:border-color .15s,box-shadow .15s;width:100%}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--blue);box-shadow:0 0 0 4px rgba(30,64,175,.12)}
.field textarea{min-height:120px;resize:vertical}

/* ---------- Footer ---------- */
.footer{background:var(--ink);color:#cbd5e1;padding:64px 0 24px;margin-top:80px}
.footer h4{color:#fff;margin-bottom:1rem;font-size:1rem}
.footer a{color:#cbd5e1;display:block;padding:.25rem 0;font-size:.9rem}
.footer a:hover{color:#fff}
.footer-grid{display:grid;gap:32px;grid-template-columns:1.5fr 1fr 1fr 1fr}
@media(max-width:800px){.footer-grid{grid-template-columns:1fr 1fr}}
@media(max-width:500px){.footer-grid{grid-template-columns:1fr}}
.footer-bottom{border-top:1px solid #1e293b;margin-top:40px;padding-top:24px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:1rem;font-size:.85rem}

/* ---------- Floating ---------- */
.fab-stack{position:fixed;right:18px;bottom:18px;display:flex;flex-direction:column;gap:12px;z-index:60}
.fab{width:56px;height:56px;border-radius:50%;display:grid;place-items:center;color:#fff;box-shadow:var(--shadow);cursor:pointer;border:none;font-size:1.3rem;transition:transform .2s}
.fab:hover{transform:scale(1.08)}
.fab.wa{background:#25D366}
.fab.ai{background:var(--grad)}
.chat-panel{position:fixed;bottom:90px;right:18px;width:340px;max-width:calc(100vw - 36px);background:#fff;border:1px solid var(--border);border-radius:18px;box-shadow:var(--shadow-lg);overflow:hidden;z-index:60;display:none}
.chat-panel.open{display:flex;flex-direction:column}
.chat-head{background:var(--grad);color:#fff;padding:14px 16px;display:flex;align-items:center;gap:.7rem}
.chat-head .av{width:36px;height:36px;border-radius:50%;background:rgba(255,255,255,.18);display:grid;place-items:center;font-weight:800}
.chat-body{height:300px;overflow-y:auto;padding:14px;background:var(--surface);display:flex;flex-direction:column;gap:8px}
.bubble{max-width:80%;padding:.55rem .8rem;border-radius:14px;font-size:.9rem;line-height:1.4}
.bubble.bot{background:#fff;border:1px solid var(--border);align-self:flex-start}
.bubble.user{background:var(--blue);color:#fff;align-self:flex-end}
.chat-input{display:flex;gap:.5rem;padding:10px;border-top:1px solid var(--border);background:#fff}
.chat-input input{flex:1;border:1px solid var(--border);border-radius:8px;padding:.5rem .7rem;font:inherit}
.chat-input button{border:none;background:var(--blue);color:#fff;border-radius:8px;padding:0 .9rem;cursor:pointer;font-weight:600}

/* ---------- Page header ---------- */
.page-header{background:linear-gradient(135deg,#eff6ff,#f0fdf4);padding:64px 0;border-bottom:1px solid var(--border)}
.page-header h1{margin-bottom:.4rem}
.crumbs{font-size:.85rem;color:var(--muted)}
.crumbs a{color:var(--muted)}
.crumbs a:hover{color:var(--blue)}

/* ---------- Tabs (login) ---------- */
.role-tabs{display:grid;grid-template-columns:repeat(4,1fr);gap:6px;background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:6px;margin-bottom:1.5rem}
.role-tab{padding:.7rem;border-radius:8px;font-weight:600;font-size:.85rem;cursor:pointer;text-align:center;color:var(--ink-2);background:transparent;border:none;transition:all .15s}
.role-tab.active{background:#fff;color:var(--blue);box-shadow:var(--shadow-sm)}

/* ---------- Portal Layout ---------- */
.portal{display:grid;grid-template-columns:260px 1fr;min-height:100vh;background:var(--surface)}
@media(max-width:900px){.portal{grid-template-columns:1fr}}
.sidebar{background:#fff;border-right:1px solid var(--border);padding:1.2rem;position:sticky;top:0;height:100vh;overflow-y:auto}
@media(max-width:900px){.sidebar{position:static;height:auto;border-right:none;border-bottom:1px solid var(--border)}}
.sidebar .brand{margin-bottom:1.5rem}
.sb-section{font-size:.7rem;text-transform:uppercase;letter-spacing:.08em;color:var(--muted);margin:1rem .5rem .4rem;font-weight:700}
.sb-link{display:flex;align-items:center;gap:.7rem;padding:.55rem .7rem;border-radius:8px;color:var(--ink-2);font-size:.92rem;font-weight:500;text-decoration:none;margin-bottom:2px}
.sb-link:hover{background:var(--surface);color:var(--blue)}
.sb-link.active{background:var(--blue-50);color:var(--blue);font-weight:600}
.sb-link .ic{width:18px;text-align:center}
.portal-main{padding:28px}
.portal-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:24px;flex-wrap:wrap;gap:1rem}
.portal-header h1{font-size:1.7rem;margin:0}
.portal-header .sub{color:var(--muted);font-size:.9rem;margin-top:.2rem}
.user-chip{display:flex;align-items:center;gap:.7rem;background:#fff;border:1px solid var(--border);padding:.4rem .7rem .4rem .4rem;border-radius:999px}
.avatar{width:36px;height:36px;border-radius:50%;background:var(--grad);color:#fff;display:grid;place-items:center;font-weight:700;font-size:.85rem}

.kpi-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:16px;margin-bottom:24px}
.kpi{background:#fff;border:1px solid var(--border);border-radius:14px;padding:18px;position:relative;overflow:hidden}
.kpi .label{font-size:.8rem;color:var(--muted);font-weight:600}
.kpi .value{font-family:'Plus Jakarta Sans',sans-serif;font-size:1.8rem;font-weight:800;margin-top:.3rem}
.kpi .delta{font-size:.78rem;color:var(--green);margin-top:.3rem;font-weight:600}
.kpi .ic{position:absolute;top:14px;right:14px;width:38px;height:38px;border-radius:10px;background:var(--blue-50);color:var(--blue);display:grid;place-items:center}
.kpi.g .ic{background:var(--green-50);color:var(--green)}
.kpi.o .ic{background:#fef3c7;color:#b45309}
.kpi.r .ic{background:#fee2e2;color:#b91c1c}

.panel{background:#fff;border:1px solid var(--border);border-radius:14px;padding:20px;margin-bottom:20px}
.panel-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px}
.panel-head h3{margin:0;font-size:1.05rem}

.table{width:100%;border-collapse:collapse;font-size:.9rem}
.table th,.table td{text-align:left;padding:.7rem .6rem;border-bottom:1px solid var(--border)}
.table th{font-size:.75rem;text-transform:uppercase;letter-spacing:.05em;color:var(--muted);font-weight:700;background:var(--surface)}
.table tr:last-child td{border-bottom:none}
.badge{display:inline-block;padding:.2rem .55rem;border-radius:6px;font-size:.72rem;font-weight:700}
.badge.b{background:var(--blue-50);color:var(--blue)}
.badge.g{background:var(--green-50);color:var(--green)}
.badge.o{background:#fef3c7;color:#b45309}
.badge.r{background:#fee2e2;color:#b91c1c}

.dual{display:grid;grid-template-columns:1fr;gap:20px}
@media(min-width:1100px){.dual{grid-template-columns:2fr 1fr}}

/* charts (simple svg-less bars) */
.bars{display:flex;align-items:flex-end;gap:8px;height:160px;padding:8px 0}
.bars .bar{flex:1;background:var(--grad);border-radius:6px 6px 0 0;min-height:6px;position:relative}
.bars .bar::after{content:attr(data-l);position:absolute;bottom:-22px;left:0;right:0;text-align:center;font-size:.7rem;color:var(--muted)}

.progress{height:8px;background:var(--surface);border-radius:999px;overflow:hidden}
.progress > span{display:block;height:100%;background:var(--grad)}

.timetable{width:100%;border-collapse:separate;border-spacing:4px;font-size:.82rem}
.timetable th{background:var(--surface);padding:.5rem;border-radius:8px;font-size:.7rem;text-transform:uppercase;color:var(--muted)}
.timetable td{background:#fff;border:1px solid var(--border);padding:.6rem;border-radius:8px;vertical-align:top}
.timetable td.subject{background:var(--blue-50);border-color:transparent}
.timetable td.subject .s{font-weight:700;color:var(--blue);font-size:.85rem}
.timetable td.subject .t{font-size:.7rem;color:var(--muted)}

.mcq-q{padding:14px;border:1px solid var(--border);border-radius:12px;margin-bottom:12px;background:#fff}
.mcq-q h4{font-size:.95rem;margin:0 0 .7rem}
.mcq-opt{display:flex;align-items:center;gap:.6rem;padding:.5rem .7rem;border:1px solid var(--border);border-radius:8px;margin-bottom:6px;cursor:pointer;font-size:.9rem}
.mcq-opt:hover{border-color:var(--blue);background:var(--blue-50)}
.mcq-opt input{accent-color:var(--blue)}

/* utility */
.flex{display:flex}.between{justify-content:space-between}.center{align-items:center}.gap{gap:1rem}
.muted{color:var(--muted)}
.mt{margin-top:1rem}.mb{margin-bottom:1rem}