/* ============================================================
   Gulchin — landing page
   Mobile-first · glassmorphism · dark aurora theme
   Brand: indigo -> violet -> teal ("flower garden")
   ============================================================ */

:root {
  /* Brand palette */
  --indigo: #6366f1;
  --indigo-rgb: 99, 102, 241;
  --violet: #a855f7;
  --violet-rgb: 168, 85, 247;
  --teal: #2dd4bf;
  --teal-rgb: 45, 212, 191;
  --pink: #f472b6;

  --primary: var(--indigo);
  --primary-rgb: var(--indigo-rgb);
  --gradient: linear-gradient(135deg, var(--indigo), var(--violet) 55%, var(--teal));

  /* Surfaces */
  --bg: #0b0d1a;
  --bg-2: #0e1024;
  --text: #eef0f8;
  --text-dim: rgba(238, 240, 248, 0.66);
  --text-faint: rgba(238, 240, 248, 0.45);

  /* Glass */
  --glass-bg: rgba(255, 255, 255, 0.07);
  --glass-border: rgba(255, 255, 255, 0.14);
  --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.35);

  --radius: 18px;
  --radius-sm: 12px;
  --ease: cubic-bezier(0.4, 0, 0.2, 1);
  --maxw: 1140px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  font-family: "Inter", system-ui, -apple-system, sans-serif;
  font-size: 16px;
  line-height: 1.5;
  color: var(--text);
  background: var(--bg);
  min-height: 100dvh;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; }
h1, h2, h3 { line-height: 1.15; letter-spacing: -0.02em; margin: 0; }

/* ---------- Aurora background ---------- */
.aurora {
  position: fixed;
  inset: 0;
  z-index: -1;
  overflow: hidden;
  background:
    radial-gradient(1200px 800px at 80% -10%, rgba(var(--violet-rgb), 0.18), transparent 60%),
    radial-gradient(1000px 700px at -10% 20%, rgba(var(--indigo-rgb), 0.20), transparent 60%),
    var(--bg);
}
.blob {
  position: absolute;
  width: 46vmax;
  height: 46vmax;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.5;
  will-change: transform;
}
.blob-1 { background: var(--indigo); top: -12%; left: -10%; animation: drift1 22s var(--ease) infinite alternate; }
.blob-2 { background: var(--teal);   bottom: -18%; right: -12%; animation: drift2 26s var(--ease) infinite alternate; }
.blob-3 { background: var(--pink);   top: 40%; left: 45%; opacity: 0.28; animation: drift3 30s var(--ease) infinite alternate; }
.grain {
  position: absolute; inset: 0; opacity: 0.04;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}
@keyframes drift1 { to { transform: translate(12%, 14%) scale(1.15); } }
@keyframes drift2 { to { transform: translate(-14%, -10%) scale(1.1); } }
@keyframes drift3 { to { transform: translate(-18%, 8%) scale(0.9); } }

/* ---------- Glass primitive ---------- */
.glass {
  background: var(--glass-bg);
  backdrop-filter: blur(20px) saturate(140%);
  -webkit-backdrop-filter: blur(20px) saturate(140%);
  border: 1px solid var(--glass-border);
  box-shadow: var(--glass-shadow);
}
.glass-inner {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.10);
  border-radius: var(--radius-sm);
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 44px;
  padding: 12px 22px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 16px;
  cursor: pointer;
  border: 1px solid transparent;
  touch-action: manipulation;
  transition: transform 0.2s var(--ease), box-shadow 0.2s var(--ease), background 0.2s var(--ease);
}
.btn:active { transform: translateY(1px) scale(0.99); }
.btn:focus-visible { outline: 2px solid var(--teal); outline-offset: 3px; }
.btn-lg { min-height: 52px; padding: 15px 28px; font-size: 17px; }

.btn-primary {
  background: var(--gradient);
  color: #fff;
  box-shadow: 0 8px 24px rgba(var(--indigo-rgb), 0.35);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 12px 32px rgba(var(--violet-rgb), 0.45); }

.btn-ghost {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--glass-border);
  color: var(--text);
  backdrop-filter: blur(12px);
}
.btn-ghost:hover { background: rgba(255, 255, 255, 0.12); transform: translateY(-2px); }

/* ---------- Nav ---------- */
.nav {
  position: sticky;
  top: 12px;
  z-index: 50;
  max-width: var(--maxw);
  margin: 12px auto 0;
  width: calc(100% - 24px);
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  border-radius: var(--radius);
}
.brand { display: flex; align-items: center; gap: 9px; font-weight: 800; font-size: 19px; }
.brand-mark { font-size: 22px; }
.brand-name { background: var(--gradient); -webkit-background-clip: text; background-clip: text; color: transparent; }
.nav-links { display: none; gap: 22px; margin-left: auto; font-size: 15px; }
.nav-links a { color: var(--text-dim); transition: color 0.2s var(--ease); }
.nav-links a:hover { color: var(--text); }
.nav-cta { margin-left: auto; padding: 10px 18px; min-height: 40px; font-size: 15px; }

/* ---------- Hero ---------- */
.hero {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 56px 20px 32px;
  display: grid;
  gap: 40px;
}
.pill {
  display: inline-flex;
  align-items: center;
  padding: 8px 16px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-dim);
  width: fit-content;
}
.hero h1 {
  font-size: clamp(2.4rem, 9vw, 4.2rem);
  font-weight: 800;
  margin: 20px 0 0;
}
.gradient-text {
  background: var(--gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.lede {
  font-size: clamp(1.05rem, 3.6vw, 1.25rem);
  color: var(--text-dim);
  max-width: 34ch;
  margin: 20px 0 0;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }
.hero-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 22px 32px;
  margin-top: 40px;
}
.stat { display: flex; flex-direction: column; }
.stat strong { font-size: 18px; }
.stat span { font-size: 14px; color: var(--text-faint); }

/* Preview card */
.hero-preview {
  border-radius: var(--radius);
  padding: 16px;
  display: grid;
  gap: 10px;
  animation: float 6s ease-in-out infinite;
}
.preview-top { display: flex; gap: 7px; padding: 4px 4px 8px; }
.dot { width: 11px; height: 11px; border-radius: 50%; background: rgba(255,255,255,0.22); }
.preview-search { padding: 14px 16px; color: var(--text-dim); font-size: 15px; }
.preview-job { display: flex; align-items: center; gap: 12px; padding: 13px 14px; }
.pj-logo {
  width: 42px; height: 42px; flex: none;
  display: grid; place-items: center;
  font-size: 20px; border-radius: 11px;
  background: rgba(var(--indigo-rgb), 0.20);
}
.pj-body { display: flex; flex-direction: column; flex: 1; min-width: 0; }
.pj-body strong { font-size: 15px; }
.pj-body span { font-size: 13px; color: var(--text-faint); }
.pj-tag {
  font-size: 12px; font-weight: 600; padding: 4px 10px; border-radius: 999px;
  background: rgba(var(--teal-rgb), 0.18); color: var(--teal);
}
@keyframes float { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-10px); } }

/* ---------- Sections ---------- */
.section { max-width: var(--maxw); margin: 0 auto; padding: 56px 20px; }
.section-head { text-align: center; max-width: 42ch; margin: 0 auto 36px; }
.section-head h2 { font-size: clamp(1.7rem, 6vw, 2.6rem); font-weight: 800; }
.section-head p { color: var(--text-dim); margin: 14px 0 0; font-size: 1.05rem; }

/* Feature grid */
.grid { display: grid; gap: 16px; grid-template-columns: 1fr; }
.card { border-radius: var(--radius); padding: 24px; transition: transform 0.3s var(--ease), box-shadow 0.3s var(--ease); }
.card:hover { transform: translateY(-4px); box-shadow: 0 16px 44px rgba(0,0,0,0.4); }
.card-icon {
  width: 52px; height: 52px; border-radius: 14px;
  display: grid; place-items: center; font-size: 26px;
  background: rgba(var(--violet-rgb), 0.16);
  margin-bottom: 16px;
}
.card h3 { font-size: 1.25rem; margin-bottom: 8px; }
.card p { color: var(--text-dim); margin: 0; }

/* Steps */
.steps { display: grid; gap: 16px; grid-template-columns: 1fr; }
.step { border-radius: var(--radius); padding: 26px 24px; position: relative; }
.step-num {
  display: grid; place-items: center;
  width: 42px; height: 42px; border-radius: 12px;
  font-weight: 800; font-size: 18px; color: #fff;
  background: var(--gradient);
  margin-bottom: 16px;
}
.step h3 { font-size: 1.2rem; margin-bottom: 8px; }
.step p { color: var(--text-dim); margin: 0; }

/* CTA */
.cta { border-radius: 26px; padding: 48px 28px; text-align: center; }
.cta h2 { font-size: clamp(1.7rem, 6vw, 2.6rem); font-weight: 800; }
.cta p { color: var(--text-dim); margin: 14px auto 26px; max-width: 40ch; }
.cta .btn { margin: 0 auto; }
.cta-note { font-size: 14px; color: var(--text-faint); margin-top: 20px; }
.cta-note strong { color: var(--teal); }

/* ---------- Footer ---------- */
.footer { padding: 40px 20px 48px; }
.footer-inner {
  max-width: var(--maxw); margin: 0 auto; text-align: center;
  display: flex; flex-direction: column; align-items: center; gap: 10px;
}
.footer-tag { color: var(--text-dim); margin: 4px 0; }
.footer-links { display: flex; gap: 20px; margin: 10px 0; flex-wrap: wrap; justify-content: center; }
.footer-links a { color: var(--text-dim); font-size: 15px; }
.footer-links a:hover { color: var(--text); }
.copyright { color: var(--text-faint); font-size: 14px; margin: 6px 0 0; }

/* ---------- Reveal animation ---------- */
[data-reveal] {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.6s var(--ease), transform 0.6s var(--ease);
}
[data-reveal].in { opacity: 1; transform: none; }
[data-reveal-delay="1"] { transition-delay: 0.08s; }
[data-reveal-delay="2"] { transition-delay: 0.16s; }
[data-reveal-delay="3"] { transition-delay: 0.24s; }
[data-reveal-delay="4"] { transition-delay: 0.32s; }

/* ---------- Responsive ---------- */
@media (min-width: 720px) {
  .nav-links { display: flex; }
  .nav-cta { margin-left: 0; }
  .grid { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(3, 1fr); }
}
@media (min-width: 980px) {
  .hero {
    grid-template-columns: 1.05fr 0.95fr;
    align-items: center;
    padding-top: 72px;
    gap: 48px;
  }
  .grid { grid-template-columns: repeat(3, 1fr); }
}

/* ---------- Reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
  [data-reveal] { opacity: 1; transform: none; }
  html { scroll-behavior: auto; }
}