:root{
  --bg:#f6f8fc;
  --surface:#ffffff;
  --surface-2:#ffffff;
  --text:#101828;
  --muted:#475467;
  --brand:#2B6CB0;
  --brand-2:#38A169;
  --line:rgba(16,24,40,.12);
  --shadow: 0 14px 32px rgba(16,24,40,.10);
  --radius: 18px;
  --radius-sm: 14px;
  --max: 1120px;
  --font: system-ui, -apple-system, Segoe UI, Roboto, Inter, Arial, sans-serif;
}

*{box-sizing:border-box}
html,body{
  margin:0;
  font-family:var(--font);
  color:var(--text);
  background:
    radial-gradient(900px 520px at 8% 0%, rgba(43,108,176,.12), transparent 60%),
    radial-gradient(900px 520px at 92% 10%, rgba(56,161,105,.10), transparent 55%),
    linear-gradient(180deg, #ffffff 0%, var(--bg) 70%, #ffffff 100%);
}
body{
  margin:0;
  font-family:var(--font);
  color:var(--text);
  background:
    radial-gradient(900px 520px at 8% 0%, rgba(43,108,176,.12), transparent 60%),
    radial-gradient(900px 520px at 92% 10%, rgba(56,161,105,.10), transparent 55%),
    linear-gradient(180deg, #ffffff 0%, var(--bg) 70%, #ffffff 100%);
}

a{color:inherit; text-decoration:none}
.container{max-width:var(--max); margin:0 auto; padding:0 18px}
.section{padding:64px 0}
.section.small{padding:40px 0}

.topbar{
  position:sticky; top:0; z-index:50;
  backdrop-filter: blur(14px);
  background: rgba(255,255,255,.82);
  border-bottom:1px solid var(--line);
}
.nav{
  display:flex; align-items:center; justify-content:space-between;
  height:72px;
}
.brand{
  display:flex; align-items:center; gap:12px;
  font-weight:800;
  letter-spacing:.2px;
}
.brand img{width:34px; height:34px}
.brand span{font-size:18px}
.navlinks{display:flex; gap:18px; align-items:center}
.navlinks a{
  padding:10px 10px;
  border-radius:10px;
  color:var(--muted);
}
.navlinks a.active, .navlinks a:hover{
  color:var(--text);
  background: rgba(16,24,40,.04);
}
.actions{display:flex; gap:10px; align-items:center}
.btn{
  display:inline-flex; align-items:center; justify-content:center;
  gap:10px;
  padding:12px 16px;
  border-radius:999px;
  border:1px solid var(--line);
  background: rgba(16,24,40,.04);
  color:var(--text);
  cursor:pointer;
  transition: transform .12s ease, background .12s ease, border-color .12s ease;
  user-select:none;
}
.btn:hover{transform: translateY(-1px); background: rgba(16,24,40,.06)}
.btn.primary{
  border-color: rgba(43,108,176,.55);
  background: linear-gradient(135deg, rgba(43,108,176,.95), rgba(56,161,105,.85));
  box-shadow: 0 14px 30px rgba(43,108,176,.18);
}
.btn.ghost{background:transparent}
.btn.small{padding:10px 12px; font-size:14px}

.lang{
  display:inline-flex;
  border:1px solid var(--line);
  border-radius:999px;
  overflow:hidden;
}
.lang button{
  appearance:none; border:0; background:transparent; color:var(--muted);
  padding:10px 12px; cursor:pointer; font-weight:650;
}
.lang button.active{background: rgba(255,255,255,.08); color:var(--text)}
.burger{
  display:none;
  width:44px; height:44px;
  border-radius:12px;
  border:1px solid var(--line);
  background: rgba(16,24,40,.04);
  cursor:pointer;
}
.burger svg{width:22px; height:22px}
.mobilemenu{
  display:none;
  border-top:1px solid var(--line);
  padding:10px 0 14px;
}
.mobilemenu a{
  display:block;
  padding:12px 12px;
  border-radius:12px;
  color:var(--muted);
}
.mobilemenu a:hover{background: rgba(16,24,40,.04); color:var(--text)}

.hero{
  padding:72px 0 38px;
}
.hero-grid{
  display:grid;
  grid-template-columns: 1.1fr .9fr;
  gap:22px;
  align-items:stretch;
}
.card{
  border:1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255,255,255,.92);
  box-shadow: var(--shadow);
}
.hero-card{
  padding:30px 28px;
  position:relative;
  overflow:hidden;
}
.hero-card:before{
  content:"";
  position:absolute; inset:-2px;
  background:
    radial-gradient(520px 260px at 20% 20%, rgba(43,108,176,.10), transparent 70%),
    radial-gradient(520px 260px at 70% 0%, rgba(56,161,105,.08), transparent 65%);
  pointer-events:none;
}
.hero-card > *{position:relative}
.kicker{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:8px 12px;
  border-radius:999px;
  border:1px solid var(--line);
  color:var(--muted);
  background: rgba(255,255,255,.92);
  font-size:14px;
}
.h1{
  font-size:44px;
  line-height:1.06;
  margin:14px 0 12px;
  letter-spacing:-.6px;
}
.lead{
  color:var(--muted);
  font-size:16.5px;
  line-height:1.55;
  margin:0 0 18px;
  max-width: 54ch;
}
.hero-actions{display:flex; gap:12px; flex-wrap:wrap; margin-top:10px}
.badges{display:flex; gap:10px; flex-wrap:wrap; margin-top:16px}
.badge{
  padding:10px 12px;
  border-radius:999px;
  border:1px solid var(--line);
  color:var(--muted);
  background: rgba(255,255,255,.88);
  font-size:14px;
}

.side-card{
  padding:22px 22px;
  display:flex;
  flex-direction:column;
  gap:14px;
}
.side-card h3{margin:0; font-size:18px}
.side-card p{margin:0; color:var(--muted); line-height:1.55}
.list{
  display:grid;
  gap:10px;
  margin-top:6px;
}
.li{
  display:flex; gap:10px;
  padding:12px 12px;
  border:1px solid var(--line);
  border-radius: var(--radius-sm);
  background: rgba(255,255,255,.88);
}
.dot{
  width:10px; height:10px;
  border-radius:50%;
  margin-top:6px;
  background: linear-gradient(135deg, var(--brand), var(--brand-2));
  box-shadow: 0 0 0 4px rgba(43,108,176,.15);
}

.section-title{
  display:flex; justify-content:space-between; align-items:flex-end;
  gap:12px;
  margin-bottom:18px;
}
.section-title h2{
  margin:0;
  font-size:28px;
  letter-spacing:-.3px;
}
.section-title p{margin:0; color:var(--muted); line-height:1.55; max-width: 70ch}

.grid-3{
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap:14px;
}
.grid-2{
  display:grid;
  grid-template-columns: repeat(2, 1fr);
  gap:14px;
}
.course{
  padding:18px;
  transition: transform .12s ease, background .12s ease;
}
.course:hover{transform: translateY(-2px); background: rgba(255,255,255,.06)}
.course .tag{
  display:inline-flex;
  padding:6px 10px;
  border-radius:999px;
  border:1px solid var(--line);
  color:var(--muted);
  font-size:13px;
}
.course h3{margin:10px 0 8px}
.course p{margin:0 0 14px; color:var(--muted); line-height:1.55}
.course .meta{display:flex; gap:10px; flex-wrap:wrap; color:var(--muted); font-size:14px}
.meta span{
  padding:8px 10px;
  border:1px solid var(--line);
  border-radius:999px;
  background: rgba(255,255,255,.88);
}
.course .cta{margin-top:14px}

.split{
  display:grid;
  grid-template-columns: 1fr 1fr;
  gap:14px;
  align-items:start;
}
.panel{padding:18px}
.panel h3{margin:0 0 6px}
.panel p{margin:0; color:var(--muted); line-height:1.6}
.panel ul{margin:10px 0 0; padding-left:18px; color:var(--muted); line-height:1.6}

.table{
  width:100%;
  border-collapse: separate;
  border-spacing:0;
  overflow:hidden;
  border-radius: var(--radius);
  border:1px solid var(--line);
}
.table th,.table td{
  padding:12px 12px;
  border-bottom:1px solid var(--line);
  background: rgba(255,255,255,.88);
  text-align:left;
  color:var(--muted);
}
.table th{color:var(--text); background: rgba(255,255,255,.06)}
.table tr:last-child td{border-bottom:0}

.footer{
  padding:34px 0;
  border-top:1px solid var(--line);
  color:var(--muted);
}
.footer-grid{
  display:grid;
  grid-template-columns: 1.2fr .8fr;
  gap:14px;
}
.footer a{color:var(--muted)}
.footer a:hover{color:var(--text)}
.smallprint{font-size:13px; color: rgba(182,198,230,.8)}

.notice{
  padding:14px 16px;
  border-radius: var(--radius-sm);
  border:1px dashed rgba(182,198,230,.35);
  color:var(--muted);
  background: rgba(255,255,255,.88);
}

.embed{
  border:1px solid var(--line);
  border-radius: var(--radius);
  overflow:hidden;
  background: rgba(255,255,255,.88);
  height: 560px;
}
.embed iframe{width:100%; height:100%; border:0}

@media (max-width: 960px){
  .hero-grid{grid-template-columns: 1fr; }
  .h1{font-size:38px}
  .grid-3{grid-template-columns: 1fr; }
  .grid-2{grid-template-columns: 1fr;}
  .split{grid-template-columns: 1fr;}
}
@media (max-width: 860px){
  .navlinks{display:none}
  .burger{display:inline-flex; align-items:center; justify-content:center}
  .mobilemenu{display:none}
  .mobilemenu.open{display:block}
}


/* Floating WhatsApp */
.wa-float{
  position: fixed;
  right: 18px;
  bottom: 18px;
  width: 54px;
  height: 54px;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: #25D366;
  color: #ffffff;
  text-decoration: none;
  box-shadow: 0 14px 32px rgba(16,24,40,.18);
  border: 1px solid rgba(255,255,255,.35);
  z-index: 999;
  transition: transform .12s ease, box-shadow .12s ease;
}
.wa-float:hover{
  transform: translateY(-2px);
  box-shadow: 0 18px 40px rgba(16,24,40,.22);
}
.wa-float svg{ width: 26px; height: 26px; }
.wa-float .wa-tip{
  position:absolute;
  right: 64px;
  bottom: 50%;
  transform: translateY(50%);
  background: rgba(255,255,255,.92);
  color: var(--text);
  border: 1px solid var(--line);
  padding: 10px 12px;
  border-radius: 14px;
  box-shadow: 0 14px 32px rgba(16,24,40,.10);
  white-space: nowrap;
  font-weight: 700;
  opacity: 0;
  pointer-events:none;
  transition: opacity .12s ease;
}
.wa-float:hover .wa-tip{ opacity: 1; }
@media (max-width: 420px){
  .wa-float{ right: 14px; bottom: 14px; width: 52px; height: 52px; }
  .wa-float .wa-tip{ display:none; }
}


.btn.disabled{opacity:.6; pointer-events:auto;}

@media (max-width: 900px){
  .grid-2{ grid-template-columns: 1fr; }
}



/* =========================
   Modern Readable Theme (Cleverdi)
   - clean, professional, high contrast
   - soft gradients, premium cards
   ========================= */
:root{
  --bg: #ffffff;
  --bg-soft: #f6f8ff;
  --ink: #0b1220;
  --muted: rgba(11,18,32,.72);
  --line: rgba(11,18,32,.10);
  --accent: #2f52ff;
  --accent2: #7c3aed;
  --shadow-sm: 0 12px 30px rgba(11,18,32,.08);
  --shadow-md: 0 20px 60px rgba(11,18,32,.12);
  --radius-lg: 22px;
  --radius-xl: 28px;
}

html, body{ max-width:100%; overflow-x:hidden; }
body{
  color: var(--ink);
  background:
    radial-gradient(900px 520px at 10% -10%, rgba(47,82,255,.14), transparent 55%),
    radial-gradient(900px 520px at 90% 0%, rgba(124,58,237,.12), transparent 55%),
    linear-gradient(180deg, var(--bg) 0%, var(--bg-soft) 40%, var(--bg) 100%);
}

/* Typography boost */
body, button, input, textarea{
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Inter, Arial, "Noto Sans", "Helvetica Neue", sans-serif;
}
.h1,.h2,.h3,h1,h2,h3{
  letter-spacing: -0.02em;
}
p{ line-height: 1.65; }
.muted{ color: var(--muted) !important; }

/* Header */
.topbar{
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255,255,255,.80);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}
.nav{ padding: 14px 0; }
.navlinks a{
  color: rgba(11,18,32,.74);
  font-weight: 750;
  padding: 10px 12px;
  border-radius: 999px;
  transition: background .15s ease, color .15s ease, transform .15s ease;
}
.navlinks a:hover{
  background: rgba(11,18,32,.04);
  color: var(--ink);
  transform: translateY(-1px);
}
.navlinks a.active{
  background: rgba(47,82,255,.12);
  color: var(--ink);
}
.burger svg path{ stroke: var(--ink); }

/* Hero card */
.hero-card{
  border-radius: var(--radius-xl);
  border: 1px solid var(--line);
  background: rgba(255,255,255,.86);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  position: relative;
}
.hero-card::before{
  content:"";
  position:absolute;
  inset:-2px;
  background:
    radial-gradient(520px 280px at 20% 0%, rgba(47,82,255,.20), transparent 60%),
    radial-gradient(520px 280px at 80% 10%, rgba(124,58,237,.16), transparent 60%);
  pointer-events:none;
}
.hero-card > *{ position: relative; }

/* Cards */
.card{
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  background: rgba(255,255,255,.92);
  box-shadow: 0 12px 30px rgba(11,18,32,.08);
  transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
}
.card:hover{
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  border-color: rgba(47,82,255,.18);
}

/* Buttons */
.btn{
  border-radius: 16px;
  border: 1px solid var(--line);
  background: #fff;
  font-weight: 850;
  transition: transform .15s ease, box-shadow .15s ease, filter .15s ease;
}
.btn:hover{ transform: translateY(-1px); box-shadow: 0 10px 22px rgba(11,18,32,.10); }
.btn.primary{
  border: 0;
  background: linear-gradient(90deg, var(--accent), var(--accent2));
  color:#fff;
  box-shadow: 0 18px 40px rgba(47,82,255,.22);
}
.btn.primary:hover{ filter: brightness(.99); box-shadow: 0 22px 54px rgba(47,82,255,.26); }

/* Inputs */
.input{
  border-radius: 16px !important;
  border: 1px solid var(--line) !important;
  background: #fff !important;
}
.input:focus{
  box-shadow: 0 0 0 4px rgba(47,82,255,.14) !important;
  border-color: rgba(47,82,255,.32) !important;
}

/* Kicker */
.kicker{
  display:inline-flex;
  align-items:center;
  gap: 8px;
  padding: 6px 10px;
  border-radius: 999px;
  background: linear-gradient(90deg, rgba(47,82,255,.12), rgba(124,58,237,.10));
  border: 1px solid rgba(47,82,255,.18);
  color: rgba(11,18,32,.80);
  font-weight: 850;
}
.kicker::before{
  content:"";
  width: 8px; height: 8px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--accent), var(--accent2));
  box-shadow: 0 0 0 4px rgba(47,82,255,.12);
}

/* Footer */
.footer{
  background: transparent;
}
.footer .footer-grid{
  border-top: 1px solid var(--line);
}

/* Page hero (all pages) */
.page-hero{
  margin: 18px 0 18px;
  padding: 22px;
  border-radius: var(--radius-xl);
  border: 1px solid var(--line);
  background:
    radial-gradient(520px 280px at 20% 0%, rgba(47,82,255,.16), transparent 60%),
    radial-gradient(520px 280px at 80% 10%, rgba(124,58,237,.12), transparent 60%),
    rgba(255,255,255,.88);
  box-shadow: var(--shadow-sm);
}
.page-hero h1{ margin:0; font-size: clamp(26px, 3vw, 44px); line-height: 1.08; }
.page-hero p{ margin: 10px 0 0; color: var(--muted); max-width: 80ch; }

@media (max-width: 900px){
  .navlinks{ display:none; }
}



/* =========================
   V2 tweaks: icons + stronger gradients (still readable)
   ========================= */

/* stronger gradient accents */
body{
  background:
    radial-gradient(980px 560px at 12% -12%, rgba(47,82,255,.18), transparent 56%),
    radial-gradient(980px 560px at 92% -6%, rgba(124,58,237,.16), transparent 58%),
    radial-gradient(900px 520px at 50% 120%, rgba(47,82,255,.10), transparent 62%),
    linear-gradient(180deg, var(--bg) 0%, var(--bg-soft) 42%, var(--bg) 100%);
}

/* gradient ring icons in nav (subtle, not emoji) */
.navlinks a, .mobilemenu a{ position: relative; }
.navlinks a::before, .mobilemenu a::before{
  content:"";
  width: 18px;
  height: 18px;
  border-radius: 999px;
  display:inline-block;
  margin-right: 10px;
  background: linear-gradient(90deg, var(--accent), var(--accent2));
  box-shadow: 0 10px 22px rgba(47,82,255,.18);
  vertical-align: -3px;
}
.navlinks a[href="index.html"]::after{}

/* on very small screens keep menu compact */
@media (max-width: 520px){
  .mobilemenu a::before{ width: 14px; height: 14px; margin-right: 8px; }
}

/* icon badges inside cards (optional utility) */
.icon-badge{
  width: 42px; height: 42px;
  border-radius: 14px;
  display:flex; align-items:center; justify-content:center;
  background: linear-gradient(135deg, rgba(47,82,255,.18), rgba(124,58,237,.16));
  border: 1px solid rgba(47,82,255,.18);
}
.icon-badge svg{ width: 20px; height: 20px; stroke: var(--ink); opacity:.9; }

/* enhance page hero a bit */
.page-hero{
  position: relative;
  overflow:hidden;
}
.page-hero::after{
  content:"";
  position:absolute;
  width: 420px; height: 420px;
  right: -220px; top: -220px;
  background: radial-gradient(circle at 30% 30%, rgba(124,58,237,.18), transparent 60%);
  pointer-events:none;
}


/* card layout when icon badge present */
.card .icon-badge{ margin-bottom: 10px; }



/* =========================
   V3: remove icons from header navigation
   ========================= */
.navlinks a::before, .mobilemenu a::before{ content:none !important; display:none !important; }
.navlinks a, .mobilemenu a{ padding-left: 12px; }


/* --- Forms (shared) --- */
.form-grid{ display:grid; grid-template-columns: 1fr 1fr auto; gap:12px; }
.form-field{ min-width:0; }
.label{ display:block; font-weight:800; color: var(--muted); font-size: 13px; margin: 0 0 6px; }
.input{ width:100%; padding:12px 12px; border:1px solid var(--line); border-radius:12px; background:#fff; outline:none; }
.input:focus{ box-shadow: 0 0 0 4px rgba(43,108,176,.12); border-color: rgba(43,108,176,.35); }
@media (max-width: 820px){ .form-grid{ grid-template-columns:1fr; } }

.link-list{ margin:0; padding-left:18px; }
.link-list li{ margin:6px 0; }
.link-list a{ text-decoration: underline; }


/* --- Auth tabs --- */
.auth-tabs{ display:flex; gap:8px; flex-wrap:wrap; border-bottom:1px solid var(--line); padding-bottom:10px; margin: 8px 0 14px; }
.auth-tab{ border:1px solid var(--line); background:#fff; padding:10px 12px; border-radius:999px; font-weight:850; cursor:pointer; transition:.15s ease; }
.auth-tab:hover{ transform: translateY(-1px); box-shadow: 0 10px 24px rgba(16,24,40,.08); }
.auth-tab.active{ background: linear-gradient(135deg, rgba(88,80,236,.12), rgba(33,150,243,.12)); border-color: rgba(88,80,236,.25); }
.help-note{ margin-top:10px; color:#b91c1c; font-weight:850; }


/* --- Admin/Student cabinet helpers --- */
.cab-header{ display:flex; justify-content:space-between; gap:14px; flex-wrap:wrap; align-items:flex-start; margin-bottom:14px; }
.cab-actions{ display:flex; gap:10px; flex-wrap:wrap; align-items:center; justify-content:flex-end; }
.tabs{ display:flex; gap:8px; flex-wrap:wrap; border-bottom:1px solid var(--line); padding-bottom:10px; margin: 6px 0 14px; }
.tab{ border:1px solid var(--line); background: #fff; padding:10px 12px; border-radius: 999px; font-weight:850; cursor:pointer; transition: .15s ease; }
.tab:hover{ transform: translateY(-1px); box-shadow: 0 10px 24px rgba(16,24,40,.08); }
.tab.active{ background: linear-gradient(135deg, rgba(88,80,236,.12), rgba(33,150,243,.12)); border-color: rgba(88,80,236,.25); }