/* ============================================================
   fronte.io — single-page studio directory
   Dark, AI-native aesthetic: glass, gradients, subtle motion.
   Mobile-first. No frameworks, no build tools.
   ============================================================ */

:root {
  --bg: #07070d;
  --bg-soft: #0c0c16;
  --ink: #f2f3fa;
  --ink-dim: #9aa0b5;
  --ink-faint: #666c82;
  --line: rgba(255, 255, 255, 0.08);
  --glass: rgba(255, 255, 255, 0.035);
  --glass-strong: rgba(255, 255, 255, 0.06);
  --violet: #8b5cf6;
  --fuchsia: #d946ef;
  --amber: #f59e0b;
  --cyan: #22d3ee;
  --green: #34d399;
  --rose: #fb7185;
  --blue: #60a5fa;
  --grad-main: linear-gradient(100deg, #a78bfa 0%, #e879f9 45%, #fbbf24 100%);
  --radius: 18px;
  --font-display: "Space Grotesk", "Inter", system-ui, sans-serif;
  --font-body: "Inter", system-ui, -apple-system, sans-serif;
  --maxw: 1120px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--ink);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

.wrap { width: min(var(--maxw), 92vw); margin-inline: auto; }

a { color: inherit; text-decoration: none; }

/* ---------------- Ambient background ---------------- */
.bg { position: fixed; inset: 0; z-index: -2; overflow: hidden; }

.bg-orbs { position: absolute; inset: 0; }

.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(90px);
  opacity: 0.5;
  animation: drift 26s ease-in-out infinite alternate;
}
.orb-1 { width: 560px; height: 560px; top: -180px; left: -120px; background: radial-gradient(circle, rgba(139, 92, 246, 0.55), transparent 70%); }
.orb-2 { width: 480px; height: 480px; top: 8%; right: -160px; background: radial-gradient(circle, rgba(217, 70, 239, 0.4), transparent 70%); animation-delay: -8s; }
.orb-3 { width: 620px; height: 620px; bottom: -260px; left: 30%; background: radial-gradient(circle, rgba(245, 158, 11, 0.22), transparent 70%); animation-delay: -16s; }

@keyframes drift {
  from { transform: translate3d(0, 0, 0) scale(1); }
  to   { transform: translate3d(40px, 30px, 0) scale(1.12); }
}

.bg-grid {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse 90% 60% at 50% 0%, black 30%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse 90% 60% at 50% 0%, black 30%, transparent 75%);
}

.bg-particles { position: absolute; inset: 0; opacity: 0.5; }

.bg-fade {
  position: absolute; inset: 0;
  background: linear-gradient(180deg, transparent 40%, var(--bg) 96%);
}

/* ---------------- Navigation ---------------- */
.nav {
  position: sticky; top: 0; z-index: 50;
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  background: rgba(7, 7, 13, 0.55);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s, background 0.3s;
}
.nav.scrolled { border-bottom-color: var(--line); background: rgba(7, 7, 13, 0.8); }

.nav-inner { display: flex; align-items: center; justify-content: space-between; height: 64px; }

.logo { display: inline-flex; align-items: center; gap: 8px; font-family: var(--font-display); font-weight: 700; font-size: 1.15rem; letter-spacing: -0.01em; }
.logo-mark { color: var(--fuchsia); filter: drop-shadow(0 0 8px rgba(217, 70, 239, 0.7)); }
.logo-io { background: var(--grad-main); -webkit-background-clip: text; background-clip: text; color: transparent; }

.nav-links { display: flex; align-items: center; gap: 26px; font-size: 0.92rem; color: var(--ink-dim); }
.nav-links a:not(.nav-cta) { transition: color 0.2s; }
.nav-links a:not(.nav-cta):hover { color: var(--ink); }

.nav-cta {
  padding: 9px 16px;
  border-radius: 999px;
  font-weight: 600;
  color: #16081f !important;
  background: var(--grad-main);
  box-shadow: 0 4px 18px rgba(217, 70, 239, 0.35);
  transition: transform 0.2s, box-shadow 0.2s;
}
.nav-cta:hover { transform: translateY(-1px); box-shadow: 0 6px 26px rgba(217, 70, 239, 0.5); }

/* ---------------- Hero ---------------- */
.hero { padding: clamp(72px, 12vh, 132px) 0 40px; text-align: center; position: relative; }

.hero-eyebrow {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-dim);
  border: 1px solid var(--line);
  background: var(--glass);
  border-radius: 999px;
  padding: 8px 18px;
  margin-bottom: 26px;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.hero-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2.4rem, 6.4vw, 4.6rem);
  line-height: 1.05;
  letter-spacing: -0.03em;
  text-wrap: balance;
}

.grad {
  background: var(--grad-main);
  -webkit-background-clip: text; background-clip: text;
  color: transparent;
}

.hero-sub {
  max-width: 620px;
  margin: 24px auto 0;
  color: var(--ink-dim);
  font-size: clamp(1rem, 1.6vw, 1.15rem);
  text-wrap: pretty;
}

.hero-cta { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; margin-top: 34px; }

.trust {
  list-style: none;
  display: flex; gap: 22px; justify-content: center; flex-wrap: wrap;
  margin-top: 44px;
  font-size: 0.85rem;
  color: var(--ink-faint);
}
.trust li { display: inline-flex; align-items: center; gap: 7px; }

/* ---------------- Buttons ---------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: 14px;
  font-weight: 600;
  font-size: 0.98rem;
  font-family: var(--font-body);
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.18s ease, box-shadow 0.25s ease, background 0.25s ease, border-color 0.25s;
  will-change: transform;
}

.btn-primary {
  background: var(--grad-main);
  color: #16081f;
  box-shadow: 0 8px 30px rgba(217, 70, 239, 0.35);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 12px 40px rgba(217, 70, 239, 0.5); }

.btn-ghost {
  background: var(--glass);
  border-color: var(--line);
  color: var(--ink);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}
.btn-ghost:hover { transform: translateY(-2px); background: var(--glass-strong); border-color: rgba(255, 255, 255, 0.18); }

.btn-card {
  width: 100%;
  margin-top: auto;
  padding: 12px 20px;
  font-size: 0.95rem;
  color: var(--ink);
  background: var(--glass);
  border-color: var(--line);
}
.btn-card:hover { transform: translateY(-2px); }

/* ---------------- Stats ---------------- */
.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  padding: 30px 0;
}
.stat {
  text-align: center;
  padding: 22px 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--glass);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}
.stat-num { display: block; font-family: var(--font-display); font-weight: 700; font-size: 2.2rem; line-height: 1.1; }
.stat-label { display: block; margin-top: 6px; font-size: 0.78rem; color: var(--ink-faint); }

/* ---------------- Section headers ---------------- */
.sec-head { text-align: center; max-width: 640px; margin: 0 auto 44px; }
.sec-head h2 { font-family: var(--font-display); font-size: clamp(1.8rem, 3.6vw, 2.5rem); letter-spacing: -0.02em; }
.sec-head p { margin-top: 12px; color: var(--ink-dim); font-size: 0.98rem; }

/* ---------------- Product grid ---------------- */
.products { padding: 70px 0 40px; }

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 18px;
}

.card {
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: 26px;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: linear-gradient(180deg, var(--glass-strong), var(--glass));
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  position: relative;
  overflow: hidden;
  transition: transform 0.25s ease, border-color 0.3s ease, box-shadow 0.35s ease;
}
.card::before {
  content: "";
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 0.35s ease;
  background: radial-gradient(420px 200px at 15% 0%, var(--card-glow, rgba(255,255,255,0.08)), transparent 70%);
  pointer-events: none;
}
.card:hover { transform: translateY(-5px); border-color: var(--card-line, rgba(255,255,255,0.2)); box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5); }
.card:hover::before { opacity: 1; }

.accent-violet { --card-line: rgba(167, 139, 250, 0.55); --card-glow: rgba(139, 92, 246, 0.22); --chip: rgba(139, 92, 246, 0.14); --chip-ink: #c4b5fd; }
.accent-gold   { --card-line: rgba(245, 158, 11, 0.55);  --card-glow: rgba(245, 158, 11, 0.18); --chip: rgba(245, 158, 11, 0.12); --chip-ink: #fcd34d; }
.accent-rose   { --card-line: rgba(251, 113, 133, 0.55); --card-glow: rgba(251, 113, 133, 0.18); --chip: rgba(251, 113, 133, 0.12); --chip-ink: #fda4af; }
.accent-cyan   { --card-line: rgba(34, 211, 238, 0.55);   --card-glow: rgba(34, 211, 238, 0.16); --chip: rgba(34, 211, 238, 0.12); --chip-ink: #67e8f9; }
.accent-blue   { --card-line: rgba(96, 165, 250, 0.55);   --card-glow: rgba(96, 165, 250, 0.18); --chip: rgba(96, 165, 250, 0.12); --chip-ink: #93c5fd; }
.accent-green  { --card-line: rgba(52, 211, 153, 0.55);   --card-glow: rgba(52, 211, 153, 0.16); --chip: rgba(52, 211, 153, 0.12); --chip-ink: #6ee7b7; }

.card-top { display: flex; align-items: center; justify-content: space-between; }

.card-icon {
  font-size: 1.7rem;
  width: 52px; height: 52px;
  display: inline-flex; align-items: center; justify-content: center;
  border-radius: 14px;
  background: var(--glass-strong);
  border: 1px solid var(--line);
  filter: saturate(1.1);
}

.badge {
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 5px 11px;
  border-radius: 999px;
  border: 1px solid;
}
.badge-soon { color: var(--amber); border-color: rgba(245, 158, 11, 0.4); background: rgba(245, 158, 11, 0.1); }
.badge-live { color: var(--green); border-color: rgba(52, 211, 153, 0.4); background: rgba(52, 211, 153, 0.1); }

.card-name { font-family: var(--font-display); font-size: 1.35rem; font-weight: 700; letter-spacing: -0.01em; }

.card-pitch { color: var(--ink-dim); font-size: 0.93rem; }

.card-tags { list-style: none; display: flex; flex-wrap: wrap; gap: 8px; }
.card-tags li {
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--chip-ink, var(--ink-dim));
  background: var(--chip, var(--glass));
  border: 1px solid var(--line);
  padding: 4px 11px;
  border-radius: 999px;
}

/* ---------------- How it works ---------------- */
.how { padding: 70px 0 40px; }

.steps { list-style: none; display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }

.step {
  padding: 26px;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: var(--glass);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}
.step-num { font-family: var(--font-display); font-weight: 700; font-size: 1.6rem; }
.step h3 { font-family: var(--font-display); margin: 10px 0 6px; font-size: 1.1rem; }
.step p { color: var(--ink-dim); font-size: 0.9rem; }

/* ---------------- About / closing CTA ---------------- */
.about { padding: 60px 0 90px; }

.about-card {
  position: relative;
  text-align: center;
  padding: clamp(36px, 6vw, 64px) clamp(22px, 5vw, 60px);
  border-radius: 26px;
  border: 1px solid var(--line);
  background:
    radial-gradient(700px 300px at 50% -20%, rgba(139, 92, 246, 0.18), transparent 70%),
    linear-gradient(180deg, var(--glass-strong), var(--glass));
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  overflow: hidden;
}
.about-card h2 { font-family: var(--font-display); font-size: clamp(1.5rem, 3vw, 2.1rem); letter-spacing: -0.02em; }
.about-line { font-family: var(--font-display); font-weight: 700; font-size: clamp(1.5rem, 3vw, 2.1rem); letter-spacing: -0.02em; margin-top: 4px; }
.about-body { max-width: 640px; margin: 18px auto 0; color: var(--ink-dim); font-size: 0.98rem; }
.about-body strong { color: var(--ink); font-weight: 600; }
.about-cta { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; margin-top: 30px; }

/* ---------------- Footer ---------------- */
.footer { border-top: 1px solid var(--line); padding: 40px 0 48px; background: rgba(7, 7, 13, 0.6); }

.footer-inner { display: flex; align-items: center; justify-content: space-between; gap: 20px; flex-wrap: wrap; }

.footer-brand { display: flex; align-items: center; gap: 14px; font-size: 0.85rem; color: var(--ink-faint); }
.footer-brand .logo-mark { font-size: 1.3rem; }
.footer-brand strong { color: var(--ink-dim); font-weight: 600; }

.footer-links { display: flex; gap: 22px; font-size: 0.85rem; color: var(--ink-dim); flex-wrap: wrap; }
.footer-links a { transition: color 0.2s; }
.footer-links a:hover { color: var(--ink); }

/* ---------------- Scroll reveal ---------------- */
.reveal { opacity: 0; transform: translateY(22px); transition: opacity 0.7s ease, transform 0.7s ease; }
.reveal.in { opacity: 1; transform: none; }

/* ---------------- Responsive ---------------- */
@media (max-width: 860px) {
  .stats { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: 1fr; }
  .nav-links { gap: 16px; }
  .nav-links a:not(.nav-cta) { display: none; } /* keep logo + CTA on small screens */
}

@media (max-width: 480px) {
  .grid { grid-template-columns: 1fr; }
  .trust { gap: 10px 18px; }
  .footer-inner { flex-direction: column; text-align: center; }
}

/* ---------------- Reduced motion ---------------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.001s !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001s !important;
  }
  .reveal { opacity: 1; transform: none; }
}