/* SkillSwipe marketing site — shared styles
   High-tech aesthetic: gradient mesh background, glassmorphism cards,
   system-native typography, respects prefers-reduced-motion. */

:root {
  --bg-0: #05060c;
  --bg-1: #0b0f1a;
  --fg: #e8ecf5;
  --fg-dim: #9aa3b2;
  --fg-muted: #6a7282;
  --accent: #6366f1;        /* indigo-500 */
  --accent-2: #22d3ee;      /* cyan-400 */
  --accent-3: #f472b6;      /* pink-400 */
  --card: rgba(255, 255, 255, 0.04);
  --card-border: rgba(255, 255, 255, 0.08);
  --card-hover: rgba(255, 255, 255, 0.07);
  --radius: 18px;
  --max-w: 1180px;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg-0);
  color: var(--fg);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "PingFang SC",
               "Helvetica Neue", "Segoe UI", Roboto, "Noto Sans SC", sans-serif;
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  min-height: 100vh;
}

/* Animated gradient mesh background */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -2;
  background:
    radial-gradient(ellipse 80% 60% at 10% 0%, rgba(99, 102, 241, 0.35), transparent 60%),
    radial-gradient(ellipse 60% 40% at 90% 10%, rgba(34, 211, 238, 0.22), transparent 60%),
    radial-gradient(ellipse 70% 50% at 50% 100%, rgba(244, 114, 182, 0.18), transparent 65%),
    linear-gradient(180deg, #05060c 0%, #080a14 100%);
  animation: meshShift 24s ease-in-out infinite alternate;
}
body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  background-image: radial-gradient(rgba(255, 255, 255, 0.035) 1px, transparent 1px);
  background-size: 28px 28px;
  pointer-events: none;
  mask-image: radial-gradient(ellipse 70% 70% at 50% 30%, #000 0%, transparent 80%);
}

@keyframes meshShift {
  0%   { transform: translate3d(0, 0, 0) scale(1); }
  100% { transform: translate3d(-2%, -1%, 0) scale(1.05); }
}
@media (prefers-reduced-motion: reduce) {
  body::before { animation: none; }
  html { scroll-behavior: auto; }
}

a { color: var(--fg); text-decoration: none; }
a:hover { color: var(--accent-2); }

.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
}

/* ---- Nav ---- */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  background: rgba(10, 12, 20, 0.55);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 24px;
  max-width: var(--max-w);
  margin: 0 auto;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  letter-spacing: -0.01em;
  font-size: 18px;
}
.brand-mark {
  width: 28px; height: 28px;
  border-radius: 8px;
  background: conic-gradient(from 180deg at 50% 50%,
    var(--accent) 0deg, var(--accent-2) 120deg, var(--accent-3) 240deg, var(--accent) 360deg);
  box-shadow: 0 0 20px rgba(99, 102, 241, 0.45);
}
.nav-links {
  display: flex;
  gap: 22px;
  align-items: center;
  font-size: 14px;
  color: var(--fg-dim);
}
.nav-links a:hover { color: var(--fg); }
.lang-toggle {
  border: 1px solid var(--card-border);
  background: var(--card);
  color: var(--fg);
  padding: 6px 12px;
  border-radius: 999px;
  font-size: 13px;
  cursor: pointer;
  transition: background 0.2s ease;
}
.lang-toggle:hover { background: var(--card-hover); }

@media (max-width: 720px) {
  .nav-links a:not(.lang-toggle) { display: none; }
}

/* ---- Hero ---- */
.hero {
  padding: 96px 0 80px;
  text-align: center;
}
.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border-radius: 999px;
  border: 1px solid var(--card-border);
  background: var(--card);
  font-size: 13px;
  color: var(--fg-dim);
  margin-bottom: 24px;
}
.badge-dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--accent-2);
  box-shadow: 0 0 12px var(--accent-2);
  animation: pulse 2.2s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; } 50% { opacity: 0.45; }
}
h1 {
  font-size: clamp(40px, 6vw, 72px);
  line-height: 1.05;
  letter-spacing: -0.03em;
  font-weight: 700;
  margin: 0 0 20px;
  background: linear-gradient(180deg, #ffffff 0%, #c6ccdf 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
h1 .grad {
  background: linear-gradient(90deg, var(--accent) 0%, var(--accent-2) 50%, var(--accent-3) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.lede {
  font-size: clamp(17px, 1.6vw, 20px);
  color: var(--fg-dim);
  max-width: 680px;
  margin: 0 auto 36px;
}
.cta-row {
  display: inline-flex;
  gap: 12px;
  flex-wrap: wrap;
  justify-content: center;
}
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 22px;
  border-radius: 12px;
  border: 1px solid var(--card-border);
  background: var(--card);
  color: var(--fg);
  font-weight: 600;
  font-size: 15px;
  cursor: pointer;
  transition: transform 0.15s ease, background 0.2s ease, box-shadow 0.2s ease;
}
.btn:hover { transform: translateY(-1px); background: var(--card-hover); }
.btn-primary {
  background: linear-gradient(135deg, var(--accent) 0%, #4f46e5 100%);
  border-color: transparent;
  box-shadow: 0 10px 40px -12px rgba(99, 102, 241, 0.7);
}
.btn-primary:hover {
  box-shadow: 0 12px 48px -10px rgba(99, 102, 241, 0.9);
  color: #fff;
}

/* ---- Sections ---- */
section {
  padding: 72px 0;
  position: relative;
}
.section-title {
  text-align: center;
  margin: 0 0 48px;
}
.section-title .kicker {
  display: block;
  font-size: 13px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent-2);
  margin-bottom: 10px;
}
.section-title h2 {
  font-size: clamp(28px, 3.4vw, 40px);
  letter-spacing: -0.02em;
  margin: 0;
  font-weight: 700;
}

/* ---- Feature grid ---- */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 16px;
}
.card {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 24px;
  transition: background 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
  position: relative;
  overflow: hidden;
}
.card:hover {
  background: var(--card-hover);
  border-color: rgba(99, 102, 241, 0.35);
  transform: translateY(-2px);
}
.card-icon {
  width: 44px; height: 44px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.2), rgba(34, 211, 238, 0.15));
  border: 1px solid rgba(99, 102, 241, 0.3);
  margin-bottom: 18px;
}
.card h3 {
  margin: 0 0 8px;
  font-size: 17px;
  font-weight: 600;
  letter-spacing: -0.01em;
}
.card p {
  margin: 0;
  color: var(--fg-dim);
  font-size: 14.5px;
  line-height: 1.6;
}

/* ---- Metrics strip ---- */
.metrics {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 16px;
  padding: 32px;
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  margin: 24px 0;
}
.metric { text-align: center; }
.metric-value {
  font-size: 32px;
  font-weight: 700;
  letter-spacing: -0.02em;
  background: linear-gradient(180deg, #fff 0%, #c6ccdf 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.metric-label {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--fg-muted);
  margin-top: 4px;
}

/* ---- CTA band ---- */
.cta-band {
  text-align: center;
  padding: 64px 32px;
  border-radius: 24px;
  background:
    radial-gradient(ellipse 80% 80% at 50% 0%, rgba(99, 102, 241, 0.25), transparent 70%),
    var(--card);
  border: 1px solid var(--card-border);
  margin: 48px 0;
}
.cta-band h2 { margin: 0 0 12px; font-size: clamp(24px, 3vw, 34px); }
.cta-band p  { color: var(--fg-dim); margin: 0 0 24px; }

/* ---- Legal / Article ---- */
.article {
  padding: 64px 0;
}
.article-inner {
  max-width: 760px;
  margin: 0 auto;
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 40px clamp(20px, 4vw, 56px);
}
.article h1 { font-size: 34px; margin: 0 0 4px; background: none; -webkit-text-fill-color: initial; color: var(--fg); }
.article .meta { color: var(--fg-muted); font-size: 13px; margin-bottom: 28px; }
.article h2 { font-size: 22px; margin: 32px 0 12px; font-weight: 600; letter-spacing: -0.01em; }
.article h3 { font-size: 17px; margin: 24px 0 8px; font-weight: 600; color: var(--fg); }
.article p  { color: var(--fg-dim); margin: 0 0 14px; }
.article ul, .article ol { color: var(--fg-dim); padding-left: 22px; }
.article li { margin: 6px 0; }
.article a  { color: var(--accent-2); text-decoration: underline; text-underline-offset: 3px; }
.article code { background: rgba(255, 255, 255, 0.06); padding: 2px 6px; border-radius: 4px; font-size: 0.92em; }
.article hr { border: 0; border-top: 1px solid var(--card-border); margin: 32px 0; }

/* ---- Footer ---- */
footer {
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  padding: 48px 0;
  margin-top: 64px;
  color: var(--fg-muted);
  font-size: 14px;
}
.footer-inner {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  align-items: center;
  justify-content: space-between;
}
.footer-links { display: flex; gap: 18px; flex-wrap: wrap; }
.footer-links a { color: var(--fg-dim); }
.footer-links a:hover { color: var(--fg); }

/* ---- Utility ---- */
[hidden] { display: none !important; }
.reveal {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
}