/* ============================================================
   SkillwinTech — company site
   Design system: gold accent on deep dark base
   ============================================================ */

/* ---- Fonts (Google Fonts) ---- */
@import url('https://fonts.googleapis.com/css2?family=Montserrat:ital,wght@0,600;0,700;0,800;1,800&family=Inter:wght@400;500;600&display=swap');

/* ---- Tokens ---- */
:root {
  --bg:        #0C0F16;
  --bg-2:      #10141d;
  --surface:   #151b26;
  --surface-2: #1b2331;
  --border:    #262f40;
  --border-2:  #33405a;

  --text:      #E7E9EE;
  --muted:     #9AA5B8;
  --faint:     #6b7688;

  --gold-1:    #F5DA8B;
  --gold-2:    #D9AF57;
  --gold-3:    #B8842E;
  --gold-grad: linear-gradient(135deg, #F5DA8B 0%, #D9AF57 45%, #B8842E 100%);

  --radius:    16px;
  --radius-sm: 10px;
  --maxw:      1160px;
  --shadow:    0 20px 50px -20px rgba(0,0,0,.65);

  --ff-head: 'Montserrat', system-ui, sans-serif;
  --ff-body: 'Inter', system-ui, sans-serif;
}

/* ---- Reset ---- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--ff-body);
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
  font-size: 17px;
  overflow-x: hidden;
}
img, svg { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
h1, h2, h3, h4 { font-family: var(--ff-head); font-weight: 800; line-height: 1.1; margin: 0; letter-spacing: -.02em; }

/* ---- Layout helpers ---- */
.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }
.section { padding: 96px 0; }
.section-sm { padding: 64px 0; }
.eyebrow {
  font-family: var(--ff-head); font-weight: 700; font-size: 13px;
  letter-spacing: .18em; text-transform: uppercase;
  background: var(--gold-grad); -webkit-background-clip: text; background-clip: text; color: transparent;
  margin: 0 0 14px;
}
.section-title { font-size: clamp(28px, 4vw, 42px); margin-bottom: 16px; }
.lead { color: var(--muted); font-size: 19px; max-width: 620px; }
.center { text-align: center; margin-inline: auto; }
.gold-text { background: var(--gold-grad); -webkit-background-clip: text; background-clip: text; color: transparent; }

/* ---- Buttons ---- */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--ff-head); font-weight: 700; font-size: 15px;
  padding: 13px 24px; border-radius: 999px; cursor: pointer;
  border: 1px solid transparent; transition: transform .15s ease, box-shadow .2s ease, background .2s ease;
}
.btn:hover { transform: translateY(-2px); }
.btn-primary { background: var(--gold-grad); color: #1a1206; box-shadow: 0 10px 30px -10px rgba(217,175,87,.55); }
.btn-primary:hover { box-shadow: 0 14px 36px -10px rgba(217,175,87,.7); }
.btn-ghost { background: transparent; color: var(--text); border-color: var(--border-2); }
.btn-ghost:hover { border-color: var(--gold-2); color: var(--gold-1); }
.arrow::after { content: "\2197"; font-weight: 700; }

/* ---- Header ---- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(12,15,22,.72); backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent; transition: border-color .3s ease, background .3s ease;
}
.site-header.scrolled { border-bottom-color: var(--border); background: rgba(12,15,22,.9); }
.nav { display: flex; align-items: center; justify-content: space-between; height: 72px; }
.brand { display: flex; align-items: center; }
.brand img { height: 30px; }
.nav-links { display: flex; align-items: center; gap: 34px; list-style: none; margin: 0; padding: 0; }
.nav-links a { color: var(--muted); font-weight: 500; font-size: 15px; transition: color .18s ease; }
.nav-links a:hover, .nav-links a.active { color: var(--text); }
.nav-cta { display: flex; align-items: center; gap: 16px; }
.nav-toggle { display: none; background: none; border: 0; color: var(--text); cursor: pointer; padding: 8px; }
.nav-toggle svg { width: 26px; height: 26px; }

/* ---- Hero ---- */
.hero { position: relative; padding: 120px 0 110px; overflow: hidden; }
.hero::before {
  content: ""; position: absolute; inset: -20% 20% auto -10%; height: 620px;
  background: radial-gradient(closest-side, rgba(217,175,87,.16), transparent 70%);
  pointer-events: none;
}
.hero::after {
  content: ""; position: absolute; inset: 10% -10% auto auto; width: 520px; height: 520px;
  background: radial-gradient(closest-side, rgba(88,120,220,.12), transparent 70%);
  pointer-events: none;
}
.hero-inner { position: relative; max-width: 780px; }
.hero h1 { font-size: clamp(38px, 6vw, 66px); line-height: 1.04; }
.hero p { color: var(--muted); font-size: clamp(18px, 2.2vw, 21px); margin: 24px 0 34px; max-width: 620px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; }
.chip {
  display: inline-flex; align-items: center; gap: 8px; margin-bottom: 26px;
  padding: 7px 14px; border-radius: 999px; border: 1px solid var(--border);
  background: var(--surface); color: var(--muted); font-size: 13px; font-weight: 500;
}
.chip .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--gold-2); box-shadow: 0 0 10px var(--gold-2); }

/* ---- Stats strip ---- */
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.stat { text-align: center; }
.stat .num { font-family: var(--ff-head); font-weight: 800; font-size: clamp(30px, 4vw, 44px); background: var(--gold-grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.stat .label { color: var(--muted); font-size: 14px; margin-top: 4px; }

/* ---- Generic cards ---- */
.grid { display: grid; gap: 24px; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.card {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 30px; transition: transform .2s ease, border-color .2s ease;
}
.card:hover { transform: translateY(-4px); border-color: var(--border-2); }
.card .icon {
  width: 46px; height: 46px; border-radius: 12px; display: grid; place-items: center;
  background: rgba(217,175,87,.12); color: var(--gold-1); margin-bottom: 18px; font-size: 22px;
}
.card h3 { font-size: 20px; margin-bottom: 10px; }
.card p { color: var(--muted); font-size: 15.5px; margin: 0; }

/* ---- Product cards ---- */
.products { display: grid; grid-template-columns: repeat(2, 1fr); gap: 28px; }
.product {
  position: relative; overflow: hidden;
  background: linear-gradient(180deg, var(--surface) 0%, var(--bg-2) 100%);
  border: 1px solid var(--border); border-radius: 22px; padding: 40px;
  display: flex; flex-direction: column; transition: transform .25s ease, border-color .25s ease;
}
.product:hover { transform: translateY(-6px); border-color: var(--gold-3); }
.product .tag {
  align-self: flex-start; font-family: var(--ff-head); font-weight: 700; font-size: 12px;
  letter-spacing: .12em; text-transform: uppercase; padding: 6px 12px; border-radius: 999px;
  border: 1px solid var(--border-2); color: var(--muted); margin-bottom: 22px;
}
.product h3 { font-size: 28px; margin-bottom: 12px; }
.product .desc { color: var(--muted); font-size: 16px; flex: 1; margin-bottom: 24px; }
.product .glow { position: absolute; width: 260px; height: 260px; right: -80px; top: -80px; border-radius: 50%; filter: blur(10px); opacity: .5; pointer-events: none; }
.product.gaming .glow { background: radial-gradient(closest-side, rgba(217,175,87,.28), transparent 70%); }
.product.ai .glow { background: radial-gradient(closest-side, rgba(88,120,220,.28), transparent 70%); }

/* ---- Feature split ---- */
.split { display: grid; grid-template-columns: 1.1fr .9fr; gap: 56px; align-items: center; }
.feature-list { list-style: none; margin: 22px 0 0; padding: 0; display: grid; gap: 16px; }
.feature-list li { display: flex; gap: 12px; color: var(--muted); }
.feature-list .tick { flex: none; width: 22px; height: 22px; border-radius: 50%; display: grid; place-items: center; background: rgba(217,175,87,.15); color: var(--gold-1); font-size: 12px; margin-top: 3px; }
.feature-list strong { color: var(--text); font-weight: 600; }

/* ---- CTA band ---- */
.cta-band {
  position: relative; overflow: hidden;
  background: linear-gradient(135deg, #171d2a, #10141d);
  border: 1px solid var(--border); border-radius: 24px; padding: 56px; text-align: center;
}
.cta-band::before { content: ""; position: absolute; inset: auto auto -40% 50%; transform: translateX(-50%); width: 700px; height: 300px; background: radial-gradient(closest-side, rgba(217,175,87,.18), transparent 70%); }
.cta-band h2 { position: relative; font-size: clamp(26px, 4vw, 38px); }
.cta-band p { position: relative; color: var(--muted); max-width: 540px; margin: 14px auto 28px; }
.cta-band .hero-actions { position: relative; justify-content: center; }

/* ---- Footer ---- */
.site-footer { background: var(--bg-2); border-top: 1px solid var(--border); padding: 64px 0 32px; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 40px; }
.footer-brand img { height: 30px; margin-bottom: 16px; }
.footer-brand p { color: var(--muted); font-size: 15px; max-width: 300px; }
.footer-col h4 { font-family: var(--ff-head); font-size: 13px; letter-spacing: .12em; text-transform: uppercase; color: var(--faint); margin-bottom: 16px; }
.footer-col ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 11px; }
.footer-col a { color: var(--muted); font-size: 15px; transition: color .18s ease; }
.footer-col a:hover { color: var(--gold-1); }
.footer-bottom {
  display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px;
  margin-top: 48px; padding-top: 24px; border-top: 1px solid var(--border);
  color: var(--faint); font-size: 14px;
}
.socials { display: flex; gap: 14px; }
.socials a { color: var(--muted); }
.socials a:hover { color: var(--gold-1); }

/* ---- Page hero (inner pages) ---- */
.page-hero { padding: 80px 0 40px; position: relative; }
.page-hero h1 { font-size: clamp(32px, 5vw, 52px); }
.page-hero p { color: var(--muted); font-size: 19px; max-width: 640px; margin-top: 16px; }

/* ---- Contact ---- */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: start; }
.form-field { margin-bottom: 18px; }
.form-field label { display: block; font-size: 14px; font-weight: 600; margin-bottom: 7px; }
.form-field input, .form-field textarea {
  width: 100%; padding: 13px 15px; border-radius: var(--radius-sm);
  background: var(--bg-2); border: 1px solid var(--border); color: var(--text);
  font-family: inherit; font-size: 15px; transition: border-color .18s ease;
}
.form-field input:focus, .form-field textarea:focus { outline: none; border-color: var(--gold-2); }
.form-field textarea { min-height: 130px; resize: vertical; }
.contact-detail { display: flex; gap: 14px; margin-bottom: 24px; }
.contact-detail .icon { flex: none; width: 42px; height: 42px; border-radius: 11px; background: rgba(217,175,87,.12); color: var(--gold-1); display: grid; place-items: center; }
.contact-detail h4 { font-family: var(--ff-body); font-size: 15px; font-weight: 600; margin: 0 0 2px; }
.contact-detail p, .contact-detail a { color: var(--muted); font-size: 15px; margin: 0; }
.contact-detail a:hover { color: var(--gold-1); }
.form-note { color: var(--faint); font-size: 13px; margin-top: 12px; }

/* ---- Legal pages ---- */
.legal { max-width: 820px; }
.legal h2 { font-size: 22px; margin: 40px 0 12px; }
.legal h3 { font-size: 18px; margin: 26px 0 8px; }
.legal p, .legal li { color: var(--muted); font-size: 16px; }
.legal ul { padding-left: 20px; }
.legal a { color: var(--gold-1); text-decoration: underline; text-underline-offset: 3px; }
.legal .updated { color: var(--faint); font-size: 14px; }
.callout { background: var(--surface); border: 1px solid var(--border-2); border-left: 3px solid var(--gold-2); border-radius: var(--radius-sm); padding: 16px 18px; margin: 24px 0; font-size: 15px; }

/* ---- Reveal animation ---- */
.reveal { opacity: 0; transform: translateY(20px); transition: opacity .6s ease, transform .6s ease; }
.reveal.in { opacity: 1; transform: none; }

/* ---- Responsive ---- */
@media (max-width: 900px) {
  .grid-3 { grid-template-columns: 1fr; }
  .grid-2, .products, .split, .contact-grid { grid-template-columns: 1fr; }
  .split { gap: 32px; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
  .stats { grid-template-columns: repeat(2, 1fr); gap: 32px 16px; }
  .nav-links, .nav-cta .btn { display: none; }
  .nav-toggle { display: block; }
  .nav.open .nav-links {
    display: flex; position: absolute; top: 72px; left: 0; right: 0;
    flex-direction: column; gap: 0; background: var(--bg-2); border-bottom: 1px solid var(--border);
    padding: 8px 24px 20px;
  }
  .nav.open .nav-links a { padding: 14px 0; border-bottom: 1px solid var(--border); width: 100%; }
  .section { padding: 72px 0; }
  .cta-band { padding: 40px 24px; }
}
@media (max-width: 520px) {
  .footer-grid { grid-template-columns: 1fr; }
  .hero-actions .btn { width: 100%; justify-content: center; }
}