/* ==========================================================================
   Anvil Edtech — design system
   Re-theme the whole site by editing the tokens in :root.
   ========================================================================== */

:root {
  /* Brand palette */
  --navy: #0b1220;
  --navy-2: #111c33;
  --indigo: #4f46e5;
  --indigo-2: #6366f1;
  --indigo-dark: #4338ca;
  --accent: #f59e0b;
  --accent-2: #fbbf24;

  /* Neutrals (light) */
  --bg: #ffffff;
  --bg-alt: #f6f8fc;
  --card: #ffffff;
  --border: #e6ebf3;
  --text: #0e1726;
  --muted: #5b6b85;

  /* Shape, motion, type */
  --radius: 14px;
  --radius-lg: 22px;
  --radius-xl: 30px;
  --shadow-sm: 0 1px 2px rgba(14, 23, 38, .06), 0 2px 10px rgba(14, 23, 38, .05);
  --shadow-md: 0 10px 30px rgba(14, 23, 38, .10);
  --shadow-lg: 0 26px 60px rgba(14, 23, 38, .18);
  --ring: 0 0 0 4px color-mix(in srgb, var(--indigo) 18%, transparent);
  --maxw: 1160px;
  --font-body: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-head: "Plus Jakarta Sans", var(--font-body);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0a1120;
    --bg-alt: #0e1729;
    --card: #121d33;
    --border: #22304b;
    --text: #e8eef9;
    --muted: #9fb0cd;
    --shadow-sm: 0 1px 2px rgba(0,0,0,.4);
    --shadow-md: 0 10px 30px rgba(0,0,0,.45);
    --shadow-lg: 0 26px 60px rgba(0,0,0,.55);
  }
}

/* ---------- Reset ---------- */
* { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--text);
  background: var(--bg);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: var(--indigo); text-decoration: none; }
a:hover { color: var(--indigo-dark); }
h1, h2, h3, h4 { font-family: var(--font-head); line-height: 1.12; letter-spacing: -0.02em; margin: 0 0 .4em; font-weight: 800; }
h1 { font-size: clamp(2.1rem, 5.2vw, 3.6rem); }
h2 { font-size: clamp(1.7rem, 3.6vw, 2.5rem); }
h3 { font-size: 1.25rem; font-weight: 700; }
p { margin: 0 0 1rem; }

.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 22px; }
.section { padding: 84px 0; }
.section-sm { padding: 56px 0; }
.section-alt { background: var(--bg-alt); }
.eyebrow {
  display: inline-block; text-transform: uppercase; letter-spacing: .16em;
  font-size: .76rem; font-weight: 800; color: var(--indigo); margin-bottom: .7rem;
}
.lead { font-size: 1.16rem; color: var(--muted); max-width: 64ch; }
.center { text-align: center; }
.center .lead { margin-inline: auto; }
.section-head { max-width: 720px; margin: 0 auto 3rem; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: .5rem;
  padding: .85rem 1.5rem; border-radius: 999px; font-weight: 700; font-size: .98rem;
  font-family: var(--font-head); cursor: pointer; border: 1.5px solid transparent;
  transition: transform .15s ease, box-shadow .15s ease, background .15s ease, color .15s ease, border-color .15s ease;
}
.btn:hover { transform: translateY(-2px); }
.btn-primary { background: var(--indigo); color: #fff; box-shadow: 0 8px 20px color-mix(in srgb, var(--indigo) 35%, transparent); }
.btn-primary:hover { background: var(--indigo-dark); color: #fff; }
.btn-accent { background: var(--accent); color: #241800; }
.btn-accent:hover { background: var(--accent-2); color: #241800; }
.btn-ghost { background: transparent; color: var(--text); border-color: var(--border); }
.btn-ghost:hover { border-color: var(--indigo); color: var(--indigo); }
.btn-light { background: #fff; color: var(--navy); }
.btn-light:hover { background: #eef1f8; color: var(--navy); }
.btn-outline-light { background: transparent; color: #fff; border-color: rgba(255,255,255,.4); }
.btn-outline-light:hover { border-color: #fff; color: #fff; }

/* ---------- Header / Nav ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid var(--border);
}
.nav { display: flex; align-items: center; justify-content: space-between; height: 72px; }
.brand { display: flex; align-items: center; gap: .6rem; font-family: var(--font-head); font-weight: 800; font-size: 1.18rem; color: var(--text); }
.brand:hover { color: var(--text); }
.brand .logo-mark {
  width: 36px; height: 36px; border-radius: 10px;
  background: linear-gradient(135deg, var(--indigo), var(--accent));
  display: grid; place-items: center; color: #fff; font-weight: 900; font-size: 1.15rem;
  box-shadow: var(--shadow-sm);
}
.nav-links { display: flex; align-items: center; gap: 1.7rem; list-style: none; margin: 0; padding: 0; }
.nav-links a { color: var(--text); font-weight: 600; font-size: .96rem; }
.nav-links a:hover { color: var(--indigo); }
.nav-toggle { display: none; background: none; border: 0; cursor: pointer; font-size: 1.5rem; color: var(--text); }

@media (max-width: 820px) {
  .nav-toggle { display: block; }
  .nav-links {
    position: absolute; top: 72px; left: 0; right: 0; flex-direction: column;
    align-items: flex-start; gap: 0; background: var(--bg); border-bottom: 1px solid var(--border);
    padding: .5rem 22px 1.1rem; display: none;
  }
  .nav-links.open { display: flex; }
  .nav-links li { width: 100%; }
  .nav-links a { display: block; padding: .75rem 0; width: 100%; }
}

/* ---------- Hero (dark, product-first) ---------- */
.hero-dark {
  position: relative; overflow: hidden; color: #eaf0fb;
  background:
    radial-gradient(900px 500px at 82% -10%, color-mix(in srgb, var(--indigo) 55%, transparent), transparent),
    radial-gradient(700px 420px at 8% 8%, color-mix(in srgb, var(--accent) 26%, transparent), transparent),
    linear-gradient(180deg, var(--navy), var(--navy-2));
  padding: 92px 0 88px;
}
.hero-dark::before {
  content: ""; position: absolute; inset: 0; pointer-events: none; opacity: .5;
  background-image: radial-gradient(rgba(255,255,255,.06) 1px, transparent 1px);
  background-size: 22px 22px; mask-image: linear-gradient(180deg, #000, transparent 70%);
}
.hero-dark .container { position: relative; }
.hero-dark h1 { color: #fff; }
.hero-dark .lead { color: #b9c6df; }
.tag {
  display: inline-flex; align-items: center; gap: .5rem; padding: .4rem .9rem; border-radius: 999px;
  font-weight: 700; font-size: .85rem; font-family: var(--font-head);
}
.hero-dark .tag { background: rgba(255,255,255,.10); color: #e6ecfb; border: 1px solid rgba(255,255,255,.16); }
.hero-actions { display: flex; flex-wrap: wrap; gap: .8rem; margin-top: 1.7rem; }
.hero-metrics { display: flex; flex-wrap: wrap; gap: 2.2rem; margin-top: 2.6rem; }
.hero-metrics .kpi .n { font-family: var(--font-head); font-size: 1.6rem; font-weight: 800; color: #fff; }
.hero-metrics .kpi .l { font-size: .86rem; color: #9fb0cd; }

/* Legacy light hero (kept for inner pages) */
.hero {
  position: relative; padding: 92px 0 76px;
  background:
    radial-gradient(1000px 400px at 82% -10%, color-mix(in srgb, var(--indigo) 20%, transparent), transparent),
    radial-gradient(700px 340px at 0% 10%, color-mix(in srgb, var(--accent) 14%, transparent), transparent);
}
.hero .tag { background: color-mix(in srgb, var(--indigo) 12%, transparent); color: var(--indigo); }
.breadcrumb { font-size: .9rem; color: var(--muted); margin-bottom: 1.1rem; }
.breadcrumb a { color: var(--muted); }

/* ---------- Grids ---------- */
.grid { display: grid; gap: 1.5rem; }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
@media (max-width: 980px) { .grid-4 { grid-template-columns: repeat(2, 1fr); } .grid-3 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px) { .grid-4, .grid-3, .grid-2 { grid-template-columns: 1fr; } }

/* ---------- Cards ---------- */
.card {
  background: var(--card); color: var(--text); border: 1px solid var(--border); border-radius: var(--radius-lg);
  padding: 1.7rem; box-shadow: var(--shadow-sm); display: flex; flex-direction: column;
  transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
}
.card h3 { color: var(--text); }
.card:hover { transform: translateY(-5px); box-shadow: var(--shadow-md); border-color: color-mix(in srgb, var(--indigo) 40%, var(--border)); }
.card .icon {
  width: 50px; height: 50px; border-radius: 13px; display: grid; place-items: center;
  font-size: 1.55rem; margin-bottom: 1rem; background: color-mix(in srgb, var(--indigo) 12%, transparent);
}
.card h3 { margin-bottom: .4rem; }
.card p { color: var(--muted); flex: 1; }
.card .pill {
  display: inline-block; font-size: .72rem; font-weight: 800; letter-spacing: .05em; text-transform: uppercase;
  color: var(--accent); background: color-mix(in srgb, var(--accent) 16%, transparent);
  padding: .22rem .65rem; border-radius: 999px; margin-bottom: .9rem; align-self: flex-start;
}
.card .pill.indigo { color: var(--indigo); background: color-mix(in srgb, var(--indigo) 14%, transparent); }
.card-actions { display: flex; flex-wrap: wrap; gap: .6rem; margin-top: 1.3rem; }

/* Product card with image top */
.pcard { padding: 0; overflow: hidden; }
.pcard .card-media { position: relative; aspect-ratio: 16/9; overflow: hidden; background: var(--bg-alt); }
.pcard .card-media img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s ease; }
.pcard:hover .card-media img { transform: scale(1.05); }
.pcard .card-media .pill { position: absolute; top: 14px; left: 14px; margin: 0; box-shadow: var(--shadow-sm); }
.pcard .card-body { padding: 1.6rem; display: flex; flex-direction: column; flex: 1; }
.pcard .card-body p { color: var(--muted); flex: 1; }

/* Value / mission cards */
.vcard { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 1.7rem; box-shadow: var(--shadow-sm); }
.vcard .vicon {
  width: 52px; height: 52px; border-radius: 14px; display: grid; place-items: center; font-size: 1.6rem;
  margin-bottom: 1rem; color: #fff; background: linear-gradient(135deg, var(--indigo), var(--indigo-2));
}
.vcard.accent .vicon { background: linear-gradient(135deg, var(--accent), var(--accent-2)); color: #241800; }
.vcard p { color: var(--muted); margin-bottom: 0; }

/* ---------- Feature list ---------- */
.features { list-style: none; margin: 1.3rem 0 0; padding: 0; display: grid; gap: .85rem; }
.features li { display: flex; gap: .7rem; align-items: flex-start; }
.features .check {
  flex: none; width: 24px; height: 24px; border-radius: 50%;
  background: color-mix(in srgb, var(--indigo) 15%, transparent); color: var(--indigo);
  display: grid; place-items: center; font-size: .82rem; font-weight: 800; margin-top: 2px;
}

/* ---------- Split / showcase ---------- */
.split { display: grid; grid-template-columns: 1.05fr .95fr; gap: 3.2rem; align-items: center; }
@media (max-width: 860px) { .split { grid-template-columns: 1fr; gap: 2rem; } }
.split.reverse .split-media { order: -1; }
@media (max-width: 860px) { .split.reverse .split-media { order: 0; } }
.panel { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 1.9rem; box-shadow: var(--shadow-sm); }

/* Media frame */
.media-frame { border-radius: var(--radius-xl); overflow: hidden; box-shadow: var(--shadow-lg); position: relative; }
.media-frame img { width: 100%; height: 100%; object-fit: cover; display: block; }
.media-frame.tall { aspect-ratio: 4/5; }
.media-frame.wide { aspect-ratio: 3/2; }
.media-badge {
  position: absolute; left: 18px; bottom: 18px; background: color-mix(in srgb, var(--card) 92%, transparent);
  backdrop-filter: blur(6px); border: 1px solid var(--border); border-radius: 14px; padding: .7rem 1rem;
  box-shadow: var(--shadow-md); display: flex; align-items: center; gap: .6rem; font-weight: 700; font-size: .9rem;
}
.media-badge .dot { width: 10px; height: 10px; border-radius: 50%; background: #22c55e; box-shadow: 0 0 0 4px color-mix(in srgb, #22c55e 25%, transparent); }

/* ---------- KPI row ---------- */
.kpis { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.2rem; }
@media (max-width: 640px) { .kpis { grid-template-columns: repeat(2, 1fr); } }
.kpi-card { text-align: center; padding: 1.4rem 1rem; background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow-sm); }
.kpi-card .n { font-family: var(--font-head); font-size: 1.9rem; font-weight: 800; color: var(--indigo); }
.kpi-card .l { color: var(--muted); font-size: .9rem; }

/* ---------- Link list ---------- */
.link-list { list-style: none; margin: 0; padding: 0; display: grid; gap: .7rem; }
.link-list a {
  display: flex; align-items: center; justify-content: space-between; padding: 1rem 1.2rem;
  border: 1px solid var(--border); border-radius: var(--radius); background: var(--bg-alt); color: var(--text);
  font-weight: 700; transition: border-color .15s ease, transform .15s ease;
}
.link-list a:hover { border-color: var(--indigo); transform: translateX(4px); color: var(--text); }
.link-list a .arrow { color: var(--indigo); }

/* ---------- Image band (CTA over photo) ---------- */
.band { position: relative; overflow: hidden; border-radius: 0; }
.band .band-img { position: absolute; inset: 0; }
.band .band-img img { width: 100%; height: 100%; object-fit: cover; }
.band .band-overlay { position: absolute; inset: 0; background: linear-gradient(120deg, rgba(11,18,32,.92), rgba(67,56,202,.78)); }
.band .container { position: relative; padding-block: 96px; text-align: center; color: #fff; }
.band h2 { color: #fff; }
.band .lead { color: #dbe3f4; margin-inline: auto; }

/* ---------- CTA band (solid) ---------- */
.cta-band { background: linear-gradient(135deg, var(--navy), var(--indigo-dark)); color: #fff; border-radius: var(--radius-xl); padding: 3.2rem; text-align: center; }
.cta-band h2 { color: #fff; }
.cta-band .lead { color: #cbd5e1; margin-inline: auto; }

/* ---------- Footer ---------- */
.site-footer { background: var(--navy); color: #c3cee0; padding: 60px 0 30px; }
.site-footer a { color: #c3cee0; }
.site-footer a:hover { color: #fff; }
.footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr; gap: 2rem; }
@media (max-width: 760px) { .footer-grid { grid-template-columns: 1fr 1fr; gap: 1.6rem; } }
@media (max-width: 460px) { .footer-grid { grid-template-columns: 1fr; } }
.footer-grid h4 { color: #fff; font-size: .95rem; margin: 0 0 .9rem; }
.footer-links { list-style: none; margin: 0; padding: 0; display: grid; gap: .55rem; }
.socials { display: flex; gap: .6rem; margin-top: 1rem; }
.socials a {
  width: 38px; height: 38px; border-radius: 10px; display: grid; place-items: center;
  background: rgba(255,255,255,.08); border: 1px solid rgba(255,255,255,.12);
}
.socials a:hover { background: var(--indigo); border-color: var(--indigo); }
.socials svg { width: 18px; height: 18px; fill: #fff; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.1); margin-top: 36px; padding-top: 22px;
  display: flex; flex-direction: column; gap: .35rem; font-size: .87rem; color: #8ea0bd;
}

/* ---------- Utility ---------- */
.mt-0 { margin-top: 0; }
.reveal { opacity: 0; transform: translateY(18px); transition: opacity .6s ease, transform .6s ease; }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { .reveal { opacity: 1; transform: none; transition: none; } }