/* ============================================================
   Pro 100 Inc — dark & bold
   Modern CSS: oklch, color-mix, fluid type, scroll-driven
   animations (with reveal fallback), backdrop-filter, :has()
   ============================================================ */

:root {
  --bg: oklch(16% 0.02 280);
  --bg-raised: oklch(20% 0.025 280);
  --text: oklch(95% 0.01 280);
  --text-dim: oklch(72% 0.02 280);
  --accent: oklch(62% 0.24 290);      /* violet */
  --accent-2: oklch(78% 0.15 200);    /* cyan   */
  --border: oklch(100% 0 0 / 0.09);
  --radius: 20px;
  --font-display: "Space Grotesk", system-ui, sans-serif;
  --font-body: "Inter", system-ui, sans-serif;
}

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

html { scroll-behavior: smooth; }

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

h1, h2, h3 { font-family: var(--font-display); line-height: 1.1; text-wrap: balance; }
p { text-wrap: pretty; }
a { color: inherit; }

/* ---------- background glow ---------- */
.bg-glow {
  position: fixed;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(600px 400px at 15% 0%, color-mix(in oklch, var(--accent) 22%, transparent), transparent 70%),
    radial-gradient(700px 500px at 90% 20%, color-mix(in oklch, var(--accent-2) 14%, transparent), transparent 70%),
    radial-gradient(800px 600px at 50% 110%, color-mix(in oklch, var(--accent) 12%, transparent), transparent 70%);
}

/* ---------- nav ---------- */
.nav {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.9rem clamp(1rem, 5vw, 3rem);
  background: color-mix(in oklch, var(--bg) 72%, transparent);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.15rem;
  text-decoration: none;
  letter-spacing: 0.01em;
}

.logo-mark {
  display: grid;
  place-items: center;
  width: 2rem;
  height: 2rem;
  border-radius: 0.55rem;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  font-size: 1.1rem;
  color: white;
}

.logo-thin { font-weight: 400; color: var(--text-dim); }

.nav-links { display: flex; gap: 1.75rem; }
.nav-links a {
  text-decoration: none;
  color: var(--text-dim);
  font-size: 0.95rem;
  transition: color 0.2s;
}
.nav-links a:hover { color: var(--text); }

/* ---------- buttons ---------- */
.btn {
  display: inline-block;
  padding: 0.8rem 1.6rem;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--accent), color-mix(in oklch, var(--accent) 55%, var(--accent-2)));
  color: white;
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  border: 1px solid transparent;
  box-shadow: 0 8px 30px color-mix(in oklch, var(--accent) 35%, transparent);
  transition: transform 0.2s, box-shadow 0.2s;
}
.btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 40px color-mix(in oklch, var(--accent) 50%, transparent);
}
.btn-ghost {
  background: transparent;
  border-color: var(--border);
  color: var(--text);
  box-shadow: none;
}
.btn-ghost:hover {
  border-color: color-mix(in oklch, var(--accent) 60%, transparent);
  box-shadow: none;
}
.btn-small { padding: 0.55rem 1.15rem; font-size: 0.875rem; }

/* ---------- hero ---------- */
.hero {
  max-width: 62rem;
  margin-inline: auto;
  padding: clamp(4.5rem, 12vh, 8.5rem) clamp(1.25rem, 5vw, 3rem) 4rem;
  text-align: center;
}

.hero-eyebrow, .section-eyebrow {
  display: inline-block;
  padding: 0.35rem 0.9rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: color-mix(in oklch, var(--bg-raised) 80%, transparent);
  color: var(--text-dim);
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 1.5rem;
}

.hero-title {
  font-size: clamp(2.6rem, 7.5vw, 5.25rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 1.4rem;
}

.grad-text {
  background: linear-gradient(100deg, var(--accent-2), var(--accent) 65%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero-sub {
  max-width: 38rem;
  margin-inline: auto;
  color: var(--text-dim);
  font-size: clamp(1.05rem, 2vw, 1.2rem);
  margin-bottom: 2.25rem;
}

.hero-cta { display: flex; gap: 0.9rem; justify-content: center; flex-wrap: wrap; }

.hero-stats {
  display: flex;
  justify-content: center;
  gap: clamp(1.5rem, 5vw, 4rem);
  flex-wrap: wrap;
  margin-top: 4rem;
}
.stat { display: grid; gap: 0.15rem; }
.stat-num { font-family: var(--font-display); font-weight: 700; font-size: 1.25rem; }
.stat-label { color: var(--text-dim); font-size: 0.85rem; }

/* ---------- marquee ---------- */
.marquee {
  overflow: hidden;
  border-block: 1px solid var(--border);
  padding: 0.9rem 0;
  mask-image: linear-gradient(90deg, transparent, black 12%, black 88%, transparent);
  -webkit-mask-image: linear-gradient(90deg, transparent, black 12%, black 88%, transparent);
}
.marquee-track {
  display: flex;
  gap: 2.5rem;
  width: max-content;
  animation: marquee 28s linear infinite;
  font-family: var(--font-display);
  font-weight: 500;
  color: var(--text-dim);
  white-space: nowrap;
}
.marquee-track i { color: color-mix(in oklch, var(--accent) 70%, transparent); font-style: normal; }
@keyframes marquee { to { transform: translateX(-50%); } }

/* ---------- sections ---------- */
.section {
  max-width: 72rem;
  margin-inline: auto;
  padding: clamp(4rem, 10vh, 7rem) clamp(1.25rem, 5vw, 3rem);
  text-align: center;
}

.section-title {
  font-size: clamp(1.9rem, 4.5vw, 3rem);
  font-weight: 700;
  letter-spacing: -0.015em;
  margin-bottom: 3rem;
}

/* ---------- service cards ---------- */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(15.5rem, 1fr));
  gap: 1.25rem;
  text-align: left;
}

.card {
  position: relative;
  padding: 1.75rem;
  border-radius: var(--radius);
  background: color-mix(in oklch, var(--bg-raised) 85%, transparent);
  border: 1px solid var(--border);
  backdrop-filter: blur(8px);
  transition: transform 0.25s, border-color 0.25s;
}
.card:hover {
  transform: translateY(-4px);
  border-color: color-mix(in oklch, var(--accent) 45%, var(--border));
}
.card-icon { font-size: 1.75rem; margin-bottom: 0.9rem; }
.card h3 { font-size: 1.15rem; margin-bottom: 0.6rem; }
.card p { color: var(--text-dim); font-size: 0.95rem; }

/* ---------- process steps ---------- */
.steps {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(13rem, 1fr));
  gap: 1.25rem;
  text-align: left;
  counter-reset: step;
}
.step {
  padding: 1.75rem;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: linear-gradient(180deg, color-mix(in oklch, var(--bg-raised) 70%, transparent), transparent);
}
.step-num {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.9rem;
  color: transparent;
  background: linear-gradient(100deg, var(--accent-2), var(--accent));
  -webkit-background-clip: text;
  background-clip: text;
}
.step h3 { font-size: 1.1rem; margin: 0.5rem 0 0.5rem; }
.step p { color: var(--text-dim); font-size: 0.92rem; }

/* ---------- why grid ---------- */
.why-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(17rem, 1fr));
  gap: 2rem 3rem;
  text-align: left;
}
.why-item h3 { font-size: 1.1rem; margin-bottom: 0.4rem; }
.why-item h3::before {
  content: "◆ ";
  background: linear-gradient(100deg, var(--accent-2), var(--accent));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.why-item p { color: var(--text-dim); font-size: 0.95rem; }

/* ---------- contact ---------- */
.contact-card {
  padding: clamp(2.5rem, 6vw, 4.5rem);
  border-radius: calc(var(--radius) * 1.6);
  border: 1px solid var(--border);
  background:
    radial-gradient(500px 300px at 20% 0%, color-mix(in oklch, var(--accent) 18%, transparent), transparent 70%),
    radial-gradient(500px 300px at 85% 100%, color-mix(in oklch, var(--accent-2) 12%, transparent), transparent 70%),
    color-mix(in oklch, var(--bg-raised) 90%, transparent);
}
.contact-card .section-title { margin-bottom: 1rem; }
.contact-sub { color: var(--text-dim); margin-bottom: 2rem; }
.contact-actions { display: flex; gap: 0.9rem; justify-content: center; flex-wrap: wrap; }
.contact-address {
  margin-top: 2rem;
  font-style: normal;
  color: var(--text-dim);
  font-size: 0.95rem;
}

/* ---------- footer ---------- */
.footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  max-width: 72rem;
  margin-inline: auto;
  padding: 2rem clamp(1.25rem, 5vw, 3rem) 2.5rem;
  border-top: 1px solid var(--border);
  color: var(--text-dim);
  font-size: 0.875rem;
}
.footer nav { display: flex; gap: 1.5rem; }
.footer a { color: var(--text-dim); text-decoration: none; transition: color 0.2s; }
.footer a:hover { color: var(--text); }

/* ---------- reveal on scroll ----------
   Uses native CSS scroll-driven animations where supported;
   JS IntersectionObserver adds .in-view as a fallback. */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.in-view { opacity: 1; transform: none; }

@supports (animation-timeline: view()) {
  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
    animation: rise both;
    animation-timeline: view();
    animation-range: entry 0% entry 45%;
  }
  @keyframes rise {
    from { opacity: 0; transform: translateY(24px); }
    to   { opacity: 1; transform: none; }
  }
}

/* ---------- motion & small screens ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .marquee-track { animation: none; }
  .reveal { opacity: 1 !important; transform: none !important; animation: none !important; transition: none !important; }
}

@media (max-width: 640px) {
  .nav-links { display: none; }
}