/* ── variables ── */
:root {
  --color-primary: #6C63FF;
  --color-secondary: #FF6584;
  --color-bg: #0F0F1A;
  --color-surface: #1A1A2E;
  --color-text: #E0E0FF;
  --color-muted: #888AAA;
  --radius: 12px;
  --font: 'Inter', system-ui, sans-serif;
}

/* ── reset ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font);
  background: var(--color-bg);
  color: var(--color-text);
  min-height: 100vh;
  line-height: 1.6;
}

/* ── header ── */
header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 2rem;
  border-bottom: 1px solid rgba(108,99,255,0.2);
  position: sticky;
  top: 0;
  background: rgba(15,15,26,0.85);
  backdrop-filter: blur(12px);
  z-index: 100;
}
.logo {
  font-weight: 700;
  font-size: 1.1rem;
  letter-spacing: 0.5px;
  color: var(--color-primary);
}
.badge {
  font-size: 0.75rem;
  padding: 0.25rem 0.75rem;
  background: rgba(108,99,255,0.15);
  border: 1px solid rgba(108,99,255,0.35);
  border-radius: 999px;
  color: var(--color-primary);
}

/* ── hero ── */
.hero {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 5rem 1.5rem 4rem;
  gap: 1.5rem;
}
.hero-tag {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--color-secondary);
  font-weight: 600;
}
.hero h1 {
  font-size: clamp(2.2rem, 6vw, 4rem);
  font-weight: 800;
  line-height: 1.15;
  max-width: 700px;
}
.hero h1 span { color: var(--color-primary); }
.hero p {
  font-size: 1.1rem;
  color: var(--color-muted);
  max-width: 520px;
}
.btn {
  display: inline-block;
  padding: 0.85rem 2rem;
  background: var(--color-primary);
  color: #fff;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 1rem;
  text-decoration: none;
  transition: transform 0.15s, box-shadow 0.15s;
  box-shadow: 0 4px 20px rgba(108,99,255,0.4);
}
.btn:hover { transform: translateY(-2px); box-shadow: 0 8px 28px rgba(108,99,255,0.55); }

/* ── pipeline diagram ── */
.pipeline {
  padding: 3rem 1.5rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2rem;
}
.pipeline h2 {
  font-size: 1.5rem;
  font-weight: 700;
  text-align: center;
}
.stages {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 0.5rem;
  width: 100%;
  max-width: 900px;
}
.stage {
  background: var(--color-surface);
  border: 1px solid rgba(108,99,255,0.25);
  border-radius: var(--radius);
  padding: 1.1rem 1.4rem;
  text-align: center;
  min-width: 130px;
  flex: 1 1 130px;
  max-width: 180px;
}
.stage .icon { font-size: 1.8rem; margin-bottom: 0.4rem; }
.stage .label { font-size: 0.85rem; font-weight: 600; }
.stage .sub { font-size: 0.72rem; color: var(--color-muted); margin-top: 0.25rem; }
.arrow { font-size: 1.4rem; color: var(--color-primary); flex-shrink: 0; }
@media (max-width: 640px) { .arrow { transform: rotate(90deg); } }

/* ── info cards ── */
.cards {
  padding: 2rem 1.5rem 4rem;
  display: grid;
  gap: 1rem;
  max-width: 900px;
  margin: 0 auto;
}
@media (min-width: 640px) { .cards { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 900px) { .cards { grid-template-columns: repeat(3, 1fr); } }
.card {
  background: var(--color-surface);
  border: 1px solid rgba(108,99,255,0.2);
  border-radius: var(--radius);
  padding: 1.4rem;
}
.card h3 { font-size: 0.95rem; font-weight: 700; margin-bottom: 0.5rem; }
.card p { font-size: 0.83rem; color: var(--color-muted); line-height: 1.55; }
.card .tag {
  display: inline-block;
  font-size: 0.68rem;
  padding: 0.15rem 0.6rem;
  border-radius: 999px;
  font-weight: 600;
  margin-bottom: 0.6rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.tag-copy { background: rgba(255,101,132,0.15); color: var(--color-secondary); }
.tag-design { background: rgba(255,195,0,0.12); color: #FFC300; }
.tag-dev { background: rgba(108,99,255,0.15); color: var(--color-primary); }
.tag-orch { background: rgba(0,220,130,0.12); color: #00DC82; }

/* ── footer ── */
footer {
  text-align: center;
  padding: 2rem 1.5rem;
  font-size: 0.8rem;
  color: var(--color-muted);
  border-top: 1px solid rgba(255,255,255,0.06);
}

/* ── glow orbs ── */
.orb {
  position: fixed;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.12;
  pointer-events: none;
  z-index: 0;
}
.orb1 { width: 400px; height: 400px; background: var(--color-primary); top: -100px; left: -100px; }
.orb2 { width: 300px; height: 300px; background: var(--color-secondary); bottom: 0; right: -80px; }
main, header, footer { position: relative; z-index: 1; }