:root {
  --bg: #0b0d12;
  --bg-elev: #12151c;
  --card: #161a23;
  --card-border: rgba(255, 255, 255, 0.06);
  --text: #eef0f4;
  --text-dim: #9aa1b0;
  --accent: #6c8cff;
  --accent-2: #a06cff;
  --shadow-soft: 0 10px 30px rgba(0, 0, 0, 0.35), 0 2px 8px rgba(0, 0, 0, 0.25);
  --shadow-lift: 0 20px 45px rgba(0, 0, 0, 0.45), 0 6px 16px rgba(0, 0, 0, 0.3);
  --radius: 18px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--text);
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* ---------- ambient background glow ---------- */
.bg-glow {
  position: fixed;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(600px circle at 15% 10%, rgba(108, 140, 255, 0.16), transparent 60%),
    radial-gradient(500px circle at 85% 25%, rgba(160, 108, 255, 0.14), transparent 60%),
    radial-gradient(700px circle at 50% 100%, rgba(108, 140, 255, 0.08), transparent 60%);
  pointer-events: none;
}

/* ---------- nav ---------- */
.nav {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px clamp(20px, 6vw, 64px);
  backdrop-filter: blur(14px);
  background: rgba(11, 13, 18, 0.6);
  border-bottom: 1px solid var(--card-border);
}

.nav__brand {
  font-weight: 800;
  font-size: 1.15rem;
  letter-spacing: -0.02em;
  color: var(--text);
  text-decoration: none;
}
.nav__brand span { color: var(--accent); }

.nav__links { display: flex; gap: 28px; }
.nav__links a {
  color: var(--text-dim);
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 500;
  transition: color 0.2s ease;
}
.nav__links a:hover { color: var(--text); }

/* ---------- layout helpers ---------- */
main {
  max-width: 1040px;
  margin: 0 auto;
  padding: 0 clamp(20px, 6vw, 64px);
}

.section-title {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 28px;
}

.grad-text {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* ---------- hero ---------- */
.hero {
  padding: clamp(80px, 16vh, 160px) 0 100px;
}

.hero__eyebrow {
  color: var(--accent);
  font-weight: 600;
  font-size: 0.9rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin: 0 0 16px;
}

.hero__title {
  font-size: clamp(2.4rem, 6vw, 4rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.08;
  margin: 0 0 20px;
  max-width: 18ch;
}

.hero__subtitle {
  color: var(--text-dim);
  font-size: clamp(1rem, 2vw, 1.2rem);
  max-width: 46ch;
  margin: 0 0 36px;
}

.hero__actions { display: flex; gap: 14px; flex-wrap: wrap; }

/* ---------- buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 13px 24px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  transition: transform 0.25s ease, box-shadow 0.25s ease, background 0.25s ease;
  border: 1px solid transparent;
  cursor: pointer;
}
.btn:hover { transform: translateY(-2px); }

.btn--primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: white;
  box-shadow: var(--shadow-soft);
}
.btn--primary:hover { box-shadow: var(--shadow-lift); }

.btn--ghost {
  background: transparent;
  color: var(--text);
  border-color: var(--card-border);
}
.btn--ghost:hover { background: rgba(255, 255, 255, 0.04); }

.btn--store {
  background: var(--bg-elev);
  color: var(--text);
  border-color: var(--card-border);
  box-shadow: var(--shadow-soft);
}
.btn--store:hover { box-shadow: var(--shadow-lift); background: #1a1f2b; }
.btn__glyph { width: 18px; height: 18px; }

/* ---------- projects ---------- */
.projects { padding: 40px 0 100px; }

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}

.card {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: var(--shadow-soft);
  transition: transform 0.35s ease, box-shadow 0.35s ease, border-color 0.35s ease;
}
.card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lift);
  border-color: rgba(108, 140, 255, 0.25);
}

.card__icon-wrap {
  width: 72px;
  height: 72px;
  border-radius: 20px;
  overflow: hidden;
  box-shadow: var(--shadow-soft);
  margin-bottom: 20px;
}
.card__icon { width: 100%; height: 100%; display: block; object-fit: cover; }

.card__title { font-size: 1.3rem; font-weight: 700; margin: 0 0 10px; letter-spacing: -0.01em; }
.card__desc { color: var(--text-dim); font-size: 0.96rem; margin: 0 0 18px; }

.card__tags { display: flex; gap: 8px; margin-bottom: 22px; }
.tag {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--accent);
  background: rgba(108, 140, 255, 0.12);
  padding: 5px 12px;
  border-radius: 999px;
}

.card--placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  border-style: dashed;
  box-shadow: none;
  min-height: 180px;
}
.card--placeholder:hover { transform: none; box-shadow: none; }
.card__placeholder-text { color: var(--text-dim); font-size: 0.95rem; margin: 0; }

/* ---------- contact ---------- */
.contact {
  padding: 60px 0 120px;
  text-align: center;
  border-top: 1px solid var(--card-border);
}
.contact__text {
  color: var(--text-dim);
  max-width: 42ch;
  margin: 0 auto 28px;
  font-size: 1.05rem;
}

/* ---------- footer ---------- */
.footer {
  text-align: center;
  padding: 28px 20px 40px;
  color: var(--text-dim);
  font-size: 0.85rem;
}

/* ---------- scroll reveal ---------- */
.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
}