/* ===========================================================================
   EdgineerX - design system
   Aesthetic: editorial engineering. Warm paper, deep ink, teal action,
   amber achievement. Graph-paper texture. Bricolage Grotesque + Plus Jakarta.
   =========================================================================== */

:root {
  --paper:      #FAF7F0;
  --paper-2:    #F3EEE3;
  --card:       #FFFFFF;
  --ink:        #0B1E33;
  --ink-2:      #37475A;
  --muted:      #6B7A8D;
  --line:       #E4DDCF;
  --teal:       #0E8C82;
  --teal-700:   #0A6B63;
  --teal-50:    #E3F3F1;
  --amber:      #E8A317;
  --amber-50:   #FBF1D9;
  --coral:      #DE5B49;
  --green:      #2F9E5E;
  --shadow-sm:  0 1px 2px rgba(11,30,51,.06), 0 2px 8px rgba(11,30,51,.05);
  --shadow-md:  0 8px 24px rgba(11,30,51,.10);
  --shadow-lg:  0 24px 60px rgba(11,30,51,.14);
  --radius:     14px;
  --radius-sm:  10px;
  --maxw:       1200px;
  --font-display: 'Bricolage Grotesque', Georgia, serif;
  --font-body:    'Plus Jakarta Sans', system-ui, sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font-body);
  color: var(--ink);
  background: var(--paper);
  line-height: 1.6;
  font-size: 16px;
  background-image:
    linear-gradient(rgba(11,30,51,.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(11,30,51,.025) 1px, transparent 1px);
  background-size: 28px 28px;
}
h1,h2,h3,h4 { font-family: var(--font-display); font-weight: 700; line-height: 1.1; letter-spacing: -.02em; color: var(--ink); }
a { color: var(--teal-700); text-decoration: none; }
a:hover { text-decoration: underline; }
img { max-width: 100%; display: block; }

.container { max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }
.section { padding: 72px 0; }
.eyebrow { font-size: .78rem; font-weight: 700; letter-spacing: .14em; text-transform: uppercase; color: var(--teal); }
.muted { color: var(--muted); }
.center { text-align: center; }

/* ---- Buttons ---- */
.btn {
  display: inline-flex; align-items: center; gap: .5rem;
  font-family: var(--font-body); font-weight: 600; font-size: .95rem;
  padding: .72rem 1.35rem; border-radius: var(--radius-sm);
  border: 1.5px solid transparent; cursor: pointer; transition: .18s ease;
  text-decoration: none; line-height: 1;
}
.btn:hover { text-decoration: none; transform: translateY(-1px); }
.btn-primary { background: var(--ink); color: #fff; }
.btn-primary:hover { background: #0d2842; box-shadow: var(--shadow-md); }
.btn-teal { background: var(--teal); color: #fff; }
.btn-teal:hover { background: var(--teal-700); box-shadow: var(--shadow-md); }
.btn-amber { background: var(--amber); color: #3a2a00; }
.btn-amber:hover { filter: brightness(1.04); }
.btn-outline { background: transparent; border-color: var(--line); color: var(--ink); }
.btn-outline:hover { border-color: var(--ink); }
.btn-ghost { background: transparent; color: var(--ink-2); padding-inline: .6rem; }
.btn-sm { padding: .48rem .9rem; font-size: .85rem; }
.btn-block { width: 100%; justify-content: center; }
.btn-danger { background: var(--coral); color: #fff; }

/* ---- Nav ---- */
.nav {
  position: sticky; top: 0; z-index: 50; background: rgba(250,247,240,.85);
  backdrop-filter: saturate(140%) blur(12px); border-bottom: 1px solid var(--line);
}
.nav-inner { display: flex; align-items: center; gap: 1.5rem; height: 68px; }
.brand { font-family: var(--font-display); font-weight: 800; font-size: 1.35rem; color: var(--ink); letter-spacing: -.03em; }
.brand span { color: var(--teal); }
.nav-links { display: flex; gap: 1.4rem; align-items: center; }
.nav-links a { color: var(--ink-2); font-weight: 500; font-size: .95rem; }
.nav-links a:hover { color: var(--ink); text-decoration: none; }
.nav-cta { display: flex; gap: .6rem; align-items: center; }
.nav-menu { display: flex; align-items: center; gap: 1.4rem; margin-left: auto; }
.nav-toggle { display: none; flex-direction: column; justify-content: center; align-items: center; gap: 5px; width: 44px; height: 40px; background: #fff; border: 1px solid var(--line); border-radius: 10px; cursor: pointer; margin-left: auto; transition: background .15s ease; }
.nav-toggle:hover { background: var(--paper-2); }
.nav-toggle span { display: block; width: 22px; height: 2px; background: var(--ink); border-radius: 2px; transition: transform .22s ease, opacity .18s ease; }
.nav.open .nav-toggle span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav.open .nav-toggle span:nth-child(2) { opacity: 0; }
.nav.open .nav-toggle span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---- Hero ---- */
.hero { position: relative; overflow: hidden; padding: 88px 0 72px; }
.hero-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 48px; align-items: center; }
.hero h1 { font-size: clamp(2.4rem, 5vw, 3.75rem); }
.hero p.lead { font-size: 1.18rem; color: var(--ink-2); margin: 1.2rem 0 2rem; max-width: 34ch; }
.hero-badge {
  display: inline-flex; align-items: center; gap: .5rem; background: var(--amber-50);
  color: #7a5a00; font-weight: 600; font-size: .82rem; padding: .4rem .8rem; border-radius: 100px; margin-bottom: 1.2rem;
  border: 1px solid #F0D9A0;
}
.hero-visual {
  background: var(--ink); border-radius: 20px; padding: 28px; color: #cfe3e0; box-shadow: var(--shadow-lg);
  position: relative;
}
.hero-visual::before {
  content:''; position:absolute; inset:0; border-radius:20px;
  background-image: linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px), linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);
  background-size: 22px 22px; pointer-events:none;
}
.stat-row { display: flex; gap: 2.2rem; margin-top: 2rem; flex-wrap: wrap; }
.stat b { font-family: var(--font-display); font-size: 1.8rem; color: var(--ink); display: block; }
.stat span { font-size: .82rem; color: var(--muted); }

/* ---- Cards / grid ---- */
.grid { display: grid; gap: 22px; }
.grid-4 { grid-template-columns: repeat(4,1fr); }
.grid-3 { grid-template-columns: repeat(3,1fr); }
.grid-2 { grid-template-columns: repeat(2,1fr); }

.card {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  box-shadow: var(--shadow-sm); overflow: hidden; transition: .2s ease;
}
.course-card { display: flex; flex-direction: column; }
.course-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); border-color: #d8cfba; }
.course-thumb { aspect-ratio: 16/9; background: linear-gradient(135deg,var(--teal),var(--ink)); position: relative; }
.course-thumb img { width:100%; height:100%; object-fit: cover; }
.course-body { padding: 16px 18px 20px; display:flex; flex-direction:column; gap:.5rem; flex:1; }
.course-cat { font-size:.72rem; font-weight:700; letter-spacing:.08em; text-transform:uppercase; color: var(--teal); }
.course-title { font-family: var(--font-display); font-size: 1.12rem; line-height:1.25; }
.course-meta { display:flex; align-items:center; justify-content:space-between; margin-top:auto; padding-top:.6rem; }
.price { font-family: var(--font-display); font-weight:700; font-size:1.15rem; }
.price s { color: var(--muted); font-weight:400; font-size:.9rem; margin-right:.4rem; }
.badge { font-size:.7rem; font-weight:700; padding:.22rem .55rem; border-radius:6px; letter-spacing:.03em; }
.badge-free { background: var(--teal-50); color: var(--teal-700); }
.badge-premium { background: var(--amber-50); color:#7a5a00; }
.badge-live { background:#FDE7E3; color: var(--coral); }
.rating { color: var(--amber); font-size:.9rem; font-weight:600; }

/* category pills */
.cat-pills { display:flex; flex-wrap:wrap; gap:.6rem; }
.cat-pill { background:var(--card); border:1px solid var(--line); border-radius:100px; padding:.5rem 1rem; font-size:.88rem; font-weight:500; color:var(--ink-2); }
.cat-pill:hover { border-color:var(--teal); color:var(--teal-700); text-decoration:none; }

/* ---- Forms ---- */
.field { margin-bottom: 1.05rem; }
.field label { display:block; font-weight:600; font-size:.88rem; margin-bottom:.4rem; color: var(--ink); }
.input, select, textarea {
  width:100%; padding:.72rem .9rem; border:1.5px solid var(--line); border-radius: var(--radius-sm);
  font-family: var(--font-body); font-size:.95rem; background:#fff; color: var(--ink); transition:.15s;
}
.input:focus, select:focus, textarea:focus { outline:none; border-color: var(--teal); box-shadow: 0 0 0 3px var(--teal-50); }
textarea { min-height: 120px; resize: vertical; }
.checkbox { display:flex; align-items:center; gap:.5rem; font-size:.9rem; }

/* ---- Auth ---- */
.auth-wrap { min-height:100vh; display:grid; grid-template-columns: 1fr 1fr; }
.auth-aside { background: var(--ink); color:#dbeae8; padding: 56px 48px; display:flex; flex-direction:column; justify-content:space-between;
  background-image: linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px), linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px); background-size:26px 26px; }
.auth-aside h2 { color:#fff; font-size:2rem; margin-bottom:1rem; }
.auth-main { display:flex; align-items:center; justify-content:center; padding: 40px 24px; }
.auth-box { width:100%; max-width: 420px; }
.auth-box h1 { font-size:1.8rem; margin-bottom:.4rem; }

/* ---- Flash ---- */
.flash { padding:.85rem 1.1rem; border-radius: var(--radius-sm); margin-bottom:1.2rem; font-weight:500; font-size:.92rem; }
.flash-error { background:#FDE7E3; color:#8f2718; border:1px solid #f3b6ab; }
.flash-success { background:#E3F3EA; color:#1a6b3d; border:1px solid #a9dcbf; }

/* ---- Footer ---- */
.footer { background: var(--ink); color:#a9bccb; padding: 56px 0 28px; margin-top: 64px; }
.footer h4 { color:#fff; font-size:1rem; margin-bottom:1rem; }
.footer a { color:#a9bccb; display:block; padding:.28rem 0; font-size:.92rem; }
.footer a:hover { color:#fff; }
.footer-bottom { border-top:1px solid rgba(255,255,255,.12); margin-top:36px; padding-top:22px; font-size:.85rem; display:flex; justify-content:space-between; flex-wrap:wrap; gap:1rem; }

/* ---- Dashboard / Admin shell ---- */
.shell { display:grid; grid-template-columns: 260px 1fr; min-height:100vh; }
.sidebar { background: var(--ink); color:#c3d3df; padding: 22px 16px; position:sticky; top:0; height:100vh; overflow-y:auto; }
.sidebar .brand { color:#fff; display:block; margin: 4px 8px 22px; }
.sidebar .brand span { color: var(--amber); }
.side-group { font-size:.68rem; text-transform:uppercase; letter-spacing:.12em; color:#6c8299; margin:18px 10px 6px; }
.side-link { display:flex; align-items:center; gap:.7rem; padding:.62rem .8rem; border-radius:9px; color:#c3d3df; font-size:.92rem; font-weight:500; }
.side-link:hover, .side-link.active { background: rgba(255,255,255,.08); color:#fff; text-decoration:none; }
.side-link.active { box-shadow: inset 3px 0 0 var(--amber); }
.main { padding: 28px 34px; overflow-x:hidden; }
.topbar { display:flex; align-items:center; justify-content:space-between; margin-bottom:26px; }
.topbar h1 { font-size:1.6rem; }

/* stat cards */
.kpi-grid { display:grid; grid-template-columns:repeat(4,1fr); gap:18px; margin-bottom:28px; }
.kpi { background:var(--card); border:1px solid var(--line); border-radius:var(--radius); padding:20px; box-shadow:var(--shadow-sm); }
.kpi .label { font-size:.8rem; color:var(--muted); font-weight:600; }
.kpi .num { font-family:var(--font-display); font-size:2rem; margin-top:.3rem; }
.kpi .num.teal { color:var(--teal); } .kpi .num.amber { color:var(--amber); } .kpi .num.green { color:var(--green); }

/* tables */
.table-wrap { background:var(--card); border:1px solid var(--line); border-radius:var(--radius); overflow:hidden; box-shadow:var(--shadow-sm); }
table.data { width:100%; border-collapse:collapse; font-size:.92rem; }
table.data th { text-align:left; padding:.85rem 1rem; background:var(--paper-2); font-size:.76rem; text-transform:uppercase; letter-spacing:.06em; color:var(--ink-2); border-bottom:1px solid var(--line); }
table.data td { padding:.8rem 1rem; border-bottom:1px solid var(--line); }
table.data tr:last-child td { border-bottom:none; }
table.data tr:hover td { background: #fdfcf8; }
.pill { font-size:.72rem; font-weight:700; padding:.2rem .55rem; border-radius:100px; }
.pill-green { background:var(--teal-50); color:var(--teal-700); }
.pill-amber { background:var(--amber-50); color:#7a5a00; }
.pill-red { background:#FDE7E3; color:var(--coral); }
.pill-gray { background:#eee; color:#555; }

/* toolbar */
.toolbar { display:flex; gap:.7rem; align-items:center; margin-bottom:18px; flex-wrap:wrap; }
.toolbar .input { max-width:280px; }
.spacer { flex:1; }

/* panels */
.panel { background:var(--card); border:1px solid var(--line); border-radius:var(--radius); padding:22px; box-shadow:var(--shadow-sm); margin-bottom:22px; }
.panel h3 { font-size:1.15rem; margin-bottom:1rem; }

/* pagination */
.pagination { display:flex; gap:.4rem; margin-top:20px; }
.pagination a, .pagination span { padding:.45rem .8rem; border:1px solid var(--line); border-radius:8px; font-size:.88rem; color:var(--ink-2); }
.pagination .cur { background:var(--ink); color:#fff; border-color:var(--ink); }

/* course detail */
.detail-hero { background:var(--ink); color:#d7e6e3; padding: 48px 0; }
.detail-hero h1 { color:#fff; font-size: clamp(1.8rem,4vw,2.8rem); max-width:20ch; }
.detail-grid { display:grid; grid-template-columns: 1fr 360px; gap:40px; align-items:start; }
.buy-card { background:var(--card); border:1px solid var(--line); border-radius:var(--radius); box-shadow:var(--shadow-lg); overflow:hidden; position:sticky; top:88px; }
.accordion { border:1px solid var(--line); border-radius:var(--radius); overflow:hidden; }
.acc-sec { border-bottom:1px solid var(--line); }
.acc-head { padding:1rem 1.2rem; font-weight:600; background:var(--paper-2); cursor:pointer; display:flex; justify-content:space-between; }
.acc-lesson { padding:.7rem 1.2rem; display:flex; justify-content:space-between; font-size:.92rem; border-top:1px solid var(--line); color:var(--ink-2); }

/* player */
.player-shell { display:grid; grid-template-columns: 1fr 340px; min-height:100vh; }
.player-main { background:#0a1626; color:#fff; }
.player-video { aspect-ratio:16/9; background:#000; width:100%; }
.player-side { background:var(--card); border-left:1px solid var(--line); overflow-y:auto; height:100vh; }
.progress-bar { height:8px; background:var(--paper-2); border-radius:100px; overflow:hidden; }
.progress-fill { height:100%; background:var(--teal); }

/* mcq */
.mcq { background:var(--card); border:1px solid var(--line); border-radius:var(--radius); padding:22px; margin-bottom:16px; box-shadow:var(--shadow-sm); }
.mcq .q { font-weight:600; margin-bottom:1rem; }
.mcq-opt { display:block; padding:.7rem 1rem; border:1.5px solid var(--line); border-radius:var(--radius-sm); margin-bottom:.55rem; cursor:pointer; transition:.15s; }
.mcq-opt:hover { border-color:var(--teal); background:var(--teal-50); }
.mcq-opt.correct { border-color:var(--green); background:#E3F3EA; }
.mcq-opt.wrong { border-color:var(--coral); background:#FDE7E3; }
.mcq-lock { text-align:center; padding:32px; background:var(--amber-50); border:1px dashed #e0b757; border-radius:var(--radius); }

/* utilities */
.mt-1{margin-top:.5rem}.mt-2{margin-top:1rem}.mt-3{margin-top:1.5rem}.mt-4{margin-top:2rem}
.mb-2{margin-bottom:1rem}.mb-3{margin-bottom:1.5rem}
.flex{display:flex}.items-center{align-items:center}.justify-between{justify-content:space-between}.gap-2{gap:1rem}.wrap{flex-wrap:wrap}
.text-sm{font-size:.88rem}.text-xs{font-size:.78rem}.fw-600{font-weight:600}

/* responsive */
@media (max-width: 960px) {
  .hero-grid,.detail-grid,.grid-4,.grid-3 { grid-template-columns: 1fr; }
  .auth-wrap { grid-template-columns: 1fr; } .auth-aside { display:none; }
  .shell { grid-template-columns: 1fr; }
  .sidebar { position:fixed; left:-260px; transition:.25s; z-index:100; width:260px; }
  .sidebar.open { left:0; }
  .kpi-grid { grid-template-columns: repeat(2,1fr); }
  .player-shell { grid-template-columns: 1fr; } .player-side { height:auto; }
  .nav-toggle { display: flex; }
  .nav-menu {
    display: none; position: absolute; top: 100%; left: 0; right: 0; z-index: 60;
    flex-direction: column; align-items: stretch; gap: 0; margin-left: 0;
    background: #fff; border-bottom: 1px solid var(--line); box-shadow: var(--shadow-md);
    padding: 6px 24px 18px;
  }
  .nav.open .nav-menu { display: flex; }
  .nav-links { flex-direction: column; align-items: stretch; gap: 0; width: 100%; }
  .nav-links a { padding: .85rem 0; border-bottom: 1px solid var(--line); font-size: 1rem; }
  .nav-cta { width: 100%; margin-top: .9rem; gap: .6rem; }
  .nav-cta .btn { flex: 1; justify-content: center; }
  .nav-cta form { flex: 1; display: flex; }
  .nav-cta form .btn { width: 100%; }
}
@media (max-width: 560px) { .grid-2 { grid-template-columns:1fr; } .kpi-grid{grid-template-columns:1fr;} }

/* ===========================================================================
   Homepage redesign (scoped under .hp) - clean white, modern, responsive
   =========================================================================== */
.hp { background: #fff; position: relative; }
.hp .eyebrow { color: var(--teal); }
.hp-section { padding: 76px 0; }
.hp-tint { background: linear-gradient(180deg, #F6FAF9 0%, #FFFFFF 100%); }

.hp-head { max-width: 640px; margin: 0 auto 44px; text-align: center; }
.hp-head.center { text-align: center; }
.hp-head-row { display: flex; align-items: flex-end; justify-content: space-between; gap: 1rem; margin-bottom: 34px; flex-wrap: wrap; }
.hp-h2 { font-size: clamp(1.7rem, 3.2vw, 2.5rem); margin-top: .5rem; letter-spacing: -.03em; }
.hp-sub { color: var(--muted); font-size: 1.05rem; margin-top: .8rem; }

/* ---- Hero ---- */
.hp-hero { position: relative; overflow: hidden; padding: clamp(48px, 8vw, 96px) 0 clamp(56px, 8vw, 92px); background: #fff; }
.hp-hero-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: clamp(32px, 5vw, 72px); align-items: center; position: relative; z-index: 1; }
.hp-blob { position: absolute; border-radius: 50%; filter: blur(70px); opacity: .5; z-index: 0; pointer-events: none; }
.hp-blob-1 { width: 460px; height: 460px; background: radial-gradient(circle, rgba(14,140,130,.28), transparent 70%); top: -160px; right: -120px; }
.hp-blob-2 { width: 380px; height: 380px; background: radial-gradient(circle, rgba(232,163,23,.22), transparent 70%); bottom: -180px; left: -140px; }

.hp-badge { display: inline-flex; align-items: center; gap: .5rem; background: #fff; border: 1px solid var(--line); color: var(--ink-2); font-weight: 600; font-size: .8rem; padding: .42rem .85rem; border-radius: 100px; box-shadow: var(--shadow-sm); }
.hp-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--teal); box-shadow: 0 0 0 4px var(--teal-50); }
.hp-h1 { font-size: clamp(2.3rem, 5.2vw, 3.9rem); line-height: 1.04; margin: 1.15rem 0 0; }
.hp-lead { font-size: clamp(1.02rem, 1.5vw, 1.22rem); color: var(--ink-2); margin: 1.15rem 0 1.9rem; max-width: 38ch; line-height: 1.65; }
.hp-cta-row { display: flex; gap: .8rem; flex-wrap: wrap; }
.hp-btn-lg { padding: .92rem 1.7rem; font-size: 1rem; border-radius: 12px; }
.hp-trust { list-style: none; display: flex; flex-wrap: wrap; gap: 1.1rem 1.6rem; margin-top: 2rem; padding: 0; }
.hp-trust li { display: flex; align-items: center; gap: .5rem; font-size: .9rem; font-weight: 600; color: var(--ink-2); }
.hp-tick { width: 20px; height: 20px; color: var(--teal); background: var(--teal-50); border-radius: 50%; padding: 2px; flex-shrink: 0; }

/* hero mockup */
.hp-hero-visual { position: relative; z-index: 1; }
.hp-hero-img { width: 100%; border-radius: 18px; box-shadow: var(--shadow-lg); }
.hp-mock { background: #fff; border: 1px solid var(--line); border-radius: 18px; padding: 22px; box-shadow: var(--shadow-lg); position: relative; }
.hp-mock::after { content: ''; position: absolute; inset: 0; border-radius: 18px; box-shadow: inset 0 1px 0 #fff; pointer-events: none; }
.hp-mock-top { display: flex; align-items: center; justify-content: space-between; }
.hp-mock-eyebrow { font-size: .72rem; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; color: var(--teal); }
.hp-mock-pill { font-size: .68rem; font-weight: 700; background: var(--teal-50); color: var(--teal-700); padding: .2rem .55rem; border-radius: 6px; }
.hp-mock-title { font-family: var(--font-display); font-size: 1.4rem; margin: .7rem 0 .15rem; }
.hp-mock-sub { color: var(--muted); font-size: .88rem; margin-bottom: 1rem; }
.hp-bar { height: 9px; background: var(--paper-2); border-radius: 100px; overflow: hidden; }
.hp-bar span { display: block; height: 100%; background: linear-gradient(90deg, var(--teal), #16b3a6); border-radius: 100px; }
.hp-mock-row { display: flex; justify-content: space-between; font-size: .8rem; color: var(--muted); margin-top: .5rem; }
.hp-mock-cards { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-top: 1.2rem; }
.hp-mini { display: flex; align-items: center; gap: .7rem; background: #FAFBFC; border: 1px solid var(--line); border-radius: 12px; padding: .8rem; }
.hp-mini b { font-family: var(--font-display); font-size: 1.15rem; display: block; line-height: 1; }
.hp-mini span { font-size: .72rem; color: var(--muted); }
.hp-ring { width: 40px; height: 40px; transform: rotate(-90deg); flex-shrink: 0; }
.hp-ring-bg { fill: none; stroke: var(--paper-2); stroke-width: 3.5; }
.hp-ring-fg { fill: none; stroke: var(--teal); stroke-width: 3.5; stroke-linecap: round; }
.hp-mini-live { grid-column: span 1; }
.hp-live-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--coral); flex-shrink: 0; box-shadow: 0 0 0 0 rgba(222,91,73,.5); animation: hp-pulse 1.8s infinite; }
@keyframes hp-pulse { 0%{box-shadow:0 0 0 0 rgba(222,91,73,.45)} 70%{box-shadow:0 0 0 8px rgba(222,91,73,0)} 100%{box-shadow:0 0 0 0 rgba(222,91,73,0)} }

/* ---- Exam trust bar ---- */
.hp-exambar { border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); background: #fff; padding: 30px 0; }
.hp-exambar-label { text-align: center; font-size: .78rem; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; color: var(--muted); margin-bottom: 1rem; }
.hp-exam-chips { display: flex; flex-wrap: wrap; justify-content: center; gap: .6rem; }
.hp-chip { font-family: var(--font-display); font-weight: 700; font-size: 1rem; color: var(--ink); background: #fff; border: 1px solid var(--line); padding: .5rem 1rem; border-radius: 10px; letter-spacing: -.01em; }

/* ---- Steps ---- */
.hp-steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; counter-reset: step; }
.hp-step { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 26px 22px; box-shadow: var(--shadow-sm); position: relative; transition: .2s ease; }
.hp-step:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); }
.hp-step-num { display: inline-flex; align-items: center; justify-content: center; width: 38px; height: 38px; border-radius: 11px; background: var(--ink); color: #fff; font-family: var(--font-display); font-weight: 700; font-size: 1.05rem; margin-bottom: 1rem; }
.hp-step:nth-child(2) .hp-step-num { background: var(--teal); }
.hp-step:nth-child(3) .hp-step-num { background: var(--amber); color: #3a2a00; }
.hp-step:nth-child(4) .hp-step-num { background: var(--coral); }
.hp-step-title { font-size: 1.1rem; margin-bottom: .45rem; }
.hp-step-desc { color: var(--muted); font-size: .92rem; line-height: 1.6; }

/* ---- Course grid ---- */
.hp-course-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.hp-course { display: flex; flex-direction: column; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow-sm); transition: .2s ease; text-decoration: none; color: var(--ink); }
.hp-course:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: #cfe3e0; text-decoration: none; }
.hp-course-thumb { aspect-ratio: 16/9; background: linear-gradient(135deg, var(--teal), var(--ink)); display: flex; align-items: flex-end; padding: 12px; }
.hp-course-thumb img { width: 100%; height: 100%; object-fit: cover; }
.hp-course-thumb-label { color: #fff; font-size: .72rem; font-weight: 700; text-transform: uppercase; letter-spacing: .08em; opacity: .9; }
.hp-course-body { padding: 16px 18px 18px; display: flex; flex-direction: column; gap: .7rem; flex: 1; }
.hp-course-title { font-family: var(--font-display); font-size: 1.08rem; line-height: 1.3; }
.hp-course-meta { display: flex; align-items: center; justify-content: space-between; margin-top: auto; }
.hp-price { font-family: var(--font-display); font-weight: 700; font-size: 1.1rem; }
.hp-price s { color: var(--muted); font-weight: 400; font-size: .85rem; margin-right: .3rem; }

/* ---- Why grid ---- */
.hp-why-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.hp-why { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 26px; transition: .2s ease; }
.hp-why:hover { box-shadow: var(--shadow-md); transform: translateY(-2px); }
.hp-why-ico { display: inline-flex; align-items: center; justify-content: center; width: 46px; height: 46px; border-radius: 12px; font-size: 1.3rem; margin-bottom: 1rem; }
.hp-ico-0 { background: var(--teal-50); color: var(--teal-700); }
.hp-ico-1 { background: var(--amber-50); color: #7a5a00; }
.hp-ico-2 { background: #FDE7E3; color: var(--coral); }
.hp-ico-3 { background: #E3F0FF; color: #2264c4; }
.hp-ico-4 { background: #E9F7EE; color: var(--green); }
.hp-ico-5 { background: #EFEAFB; color: #6b48c9; }
.hp-why-title { font-size: 1.12rem; margin-bottom: .45rem; }
.hp-why-desc { color: var(--muted); font-size: .93rem; line-height: 1.62; }

/* ---- Category grid ---- */
.hp-cat-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.hp-cat { position: relative; display: flex; flex-direction: column; gap: .35rem; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 22px 24px; text-decoration: none; color: var(--ink); transition: .2s ease; overflow: hidden; }
.hp-cat:hover { border-color: var(--teal); box-shadow: var(--shadow-md); text-decoration: none; transform: translateY(-2px); }
.hp-cat-name { font-family: var(--font-display); font-weight: 700; font-size: 1.12rem; }
.hp-cat-desc { color: var(--muted); font-size: .88rem; }
.hp-cat-arrow { position: absolute; top: 20px; right: 22px; color: var(--teal); font-size: 1.2rem; transition: .2s ease; }
.hp-cat:hover .hp-cat-arrow { transform: translateX(4px); }

/* ---- Stats ---- */
.hp-stats { display: flex; flex-wrap: wrap; justify-content: center; gap: clamp(2rem, 6vw, 5rem); }
.hp-stat { text-align: center; }
.hp-stat b { font-family: var(--font-display); font-size: clamp(2rem, 4vw, 2.8rem); color: var(--ink); display: block; line-height: 1; }
.hp-stat span { font-size: .9rem; color: var(--muted); }

/* ---- FAQ ---- */
.hp-faq-wrap { max-width: 760px; }
.hp-faq { display: flex; flex-direction: column; gap: 12px; }
.hp-faq-item { background: #fff; border: 1px solid var(--line); border-radius: 12px; padding: 4px 20px; box-shadow: var(--shadow-sm); }
.hp-faq-item summary { list-style: none; cursor: pointer; display: flex; align-items: center; justify-content: space-between; gap: 1rem; font-family: var(--font-display); font-weight: 700; font-size: 1.02rem; padding: 16px 0; color: var(--ink); }
.hp-faq-item summary::-webkit-details-marker { display: none; }
.hp-faq-plus { font-size: 1.5rem; color: var(--teal); transition: .2s ease; flex-shrink: 0; line-height: 1; }
.hp-faq-item[open] .hp-faq-plus { transform: rotate(45deg); }
.hp-faq-item p { color: var(--ink-2); font-size: .95rem; line-height: 1.7; padding: 0 0 18px; margin: 0; }

/* ---- CTA band ---- */
.hp-cta-band { position: relative; overflow: hidden; background: linear-gradient(135deg, #0B1E33 0%, #0A6B63 130%); border-radius: 24px; padding: clamp(40px, 6vw, 72px); text-align: center; color: #fff; box-shadow: var(--shadow-lg); }
.hp-cta-glow { position: absolute; width: 380px; height: 380px; background: radial-gradient(circle, rgba(232,163,23,.35), transparent 70%); top: -120px; right: -80px; filter: blur(30px); pointer-events: none; }
.hp-cta-title { color: #fff; font-size: clamp(1.7rem, 3.5vw, 2.6rem); position: relative; }
.hp-cta-body { color: #cfe0e0; font-size: 1.08rem; margin: 1rem auto 2rem; max-width: 46ch; position: relative; }
.hp-cta-band .btn { position: relative; }

/* ---- Entrance animation ---- */
@keyframes hp-fade-up { from { opacity: 0; transform: translateY(16px); } to { opacity: 1; transform: none; } }
@media (prefers-reduced-motion: no-preference) {
  .hp-hero-copy > * { animation: hp-fade-up .6s cubic-bezier(.2,.7,.2,1) backwards; }
  .hp-hero-copy > *:nth-child(1) { animation-delay: .05s; }
  .hp-hero-copy > *:nth-child(2) { animation-delay: .12s; }
  .hp-hero-copy > *:nth-child(3) { animation-delay: .19s; }
  .hp-hero-copy > *:nth-child(4) { animation-delay: .26s; }
  .hp-hero-copy > *:nth-child(5) { animation-delay: .33s; }
  .hp-hero-visual { animation: hp-fade-up .7s cubic-bezier(.2,.7,.2,1) .28s backwards; }
}

/* ---- Responsive ---- */
@media (max-width: 980px) {
  .hp-hero-grid { grid-template-columns: 1fr; }
  .hp-hero-visual { max-width: 460px; }
  .hp-steps { grid-template-columns: repeat(2, 1fr); }
  .hp-course-grid { grid-template-columns: repeat(2, 1fr); }
  .hp-why-grid, .hp-cat-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 620px) {
  .hp-section { padding: 52px 0; }
  .hp-steps, .hp-course-grid, .hp-why-grid, .hp-cat-grid { grid-template-columns: 1fr; }
  .hp-head-row { flex-direction: column; align-items: flex-start; }
  .hp-cta-row .btn { flex: 1; justify-content: center; }
  .hp-lead { max-width: none; }
}


/* Homepage hero illustration */
.hp-illus { width: 100%; height: auto; display: block; overflow: visible; }
@media (prefers-reduced-motion: no-preference) {
  .hp-float-a { animation: hp-bob 5s ease-in-out infinite; }
  .hp-float-b { animation: hp-bob 6s ease-in-out infinite .6s; }
  .hp-float-c { animation: hp-bob 5.5s ease-in-out infinite .3s; }
}
@keyframes hp-bob { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-8px); } }