/* ============================================================
   Arif Setyo W — personal site
   ============================================================ */
:root {
  --bg: #ffffff;
  --bg-alt: #f6f7fb;
  --ink: #0f172a;
  --ink-soft: #475569;
  --ink-faint: #94a3b8;
  --line: #e6e8f0;
  --accent: #2563eb;
  --accent-2: #1d4ed8;
  --accent-soft: #eff6ff;
  --radius: 16px;
  --shadow: 0 1px 2px rgba(15,23,42,.04), 0 12px 32px -12px rgba(15,23,42,.12);
  --shadow-lg: 0 24px 60px -20px rgba(37,99,235,.38);
  --maxw: 1080px;
  --font: 'Inter', system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  --mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, monospace;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
.container { width: 100%; max-width: var(--maxw); margin-inline: auto; padding-inline: 24px; }

/* ---------- buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .5rem;
  font-weight: 600; font-size: .95rem; letter-spacing: .01em;
  padding: .8rem 1.4rem; border-radius: 999px; border: 1px solid transparent;
  cursor: pointer; transition: transform .15s ease, box-shadow .2s ease, background .2s ease, border-color .2s ease;
  white-space: nowrap;
}
.btn--sm { padding: .5rem 1rem; font-size: .88rem; }
.btn--lg { padding: .95rem 1.7rem; font-size: 1rem; }
.btn--primary { background: linear-gradient(135deg, var(--accent), var(--accent-2)); color: #fff; box-shadow: var(--shadow-lg); }
.btn--primary:hover { transform: translateY(-2px); }
.btn--ghost { background: #fff; color: var(--ink); border-color: var(--line); }
.btn--ghost:hover { border-color: var(--accent); color: var(--accent); transform: translateY(-2px); }

/* ---------- nav ---------- */
.nav {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255,255,255,.78); backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}
.nav__inner { display: flex; align-items: center; justify-content: space-between; height: 68px; }
.brand { display: inline-flex; align-items: center; gap: .6rem; font-weight: 700; }
.brand__mark { width: 34px; height: 34px; display: block; border-radius: 10px; }
.brand__text { font-size: .98rem; }
.nav__links { display: flex; align-items: center; gap: 1.6rem; }
.nav__links a { color: var(--ink-soft); font-weight: 500; font-size: .95rem; }
.nav__links a:hover { color: var(--ink); }
.nav__links .btn { color: var(--ink); }

/* ---------- hero ---------- */
.eyebrow {
  font-size: .82rem; font-weight: 600; letter-spacing: .04em; text-transform: uppercase;
  color: var(--accent); margin: 0 0 .8rem;
}
.hero { padding: 72px 0 40px; position: relative; overflow: hidden; }
.hero::before {
  content: ""; position: absolute; inset: -40% 50% auto -20%; height: 600px;
  background: radial-gradient(closest-side, rgba(37,99,235,.12), transparent 70%);
  z-index: -1;
}
.hero__grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: 56px; align-items: center; }
.hero h1 { font-size: clamp(2.1rem, 4.6vw, 3.3rem); line-height: 1.08; letter-spacing: -.02em; margin: 0 0 1.1rem; font-weight: 800; }
.accent { background: linear-gradient(135deg, var(--accent), var(--accent-2)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.lead { font-size: 1.12rem; color: var(--ink-soft); margin: 0 0 1.8rem; max-width: 36ch; }
.hero__cta { display: flex; gap: .8rem; flex-wrap: wrap; margin-bottom: 2.4rem; }
.hero__stats { display: flex; gap: 2rem; list-style: none; padding: 0; margin: 0; flex-wrap: wrap; }
.hero__stats li { display: flex; flex-direction: column; }
.hero__stats strong { font-size: 1.25rem; font-weight: 700; }
.hero__stats span { font-size: .85rem; color: var(--ink-faint); }

.hero__photo { display: grid; place-items: center; }
.photo-frame {
  position: relative; width: min(360px, 80vw); aspect-ratio: 1; border-radius: 28px; padding: 8px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  box-shadow: var(--shadow-lg);
}
.photo-frame img { width: 100%; height: 100%; object-fit: cover; border-radius: 22px; background: var(--bg-alt); }

/* ---------- marquee / trust bar ---------- */
.marquee { border-block: 1px solid var(--line); background: var(--bg-alt); }
.marquee__row {
  display: flex; flex-wrap: wrap; gap: 1.4rem 2.4rem; justify-content: center;
  padding: 20px 24px; font-family: var(--mono); font-size: .85rem; color: var(--ink-faint);
}
.marquee__row span { white-space: nowrap; }

/* ---------- sections ---------- */
.section { padding: 88px 0; }
.section--alt { background: var(--bg-alt); border-block: 1px solid var(--line); }
.section__head { max-width: 620px; margin-bottom: 44px; }
.section__head h2 { font-size: clamp(1.7rem, 3.2vw, 2.3rem); letter-spacing: -.02em; margin: 0 0 .5rem; font-weight: 800; }
.section__sub { color: var(--ink-soft); margin: 0; font-size: 1.05rem; }

/* ---------- work cards ---------- */
.cards { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; }
.card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 28px;
  box-shadow: var(--shadow); transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
  display: flex; flex-direction: column;
}
.card:hover { transform: translateY(-4px); border-color: #d7d9ee; box-shadow: 0 20px 44px -18px rgba(15,23,42,.22); }
.card__top { display: flex; align-items: center; justify-content: space-between; gap: 1rem; margin-bottom: .7rem; }
.card__top h3 { margin: 0; font-size: 1.3rem; font-weight: 700; }
.card__badge {
  font-size: .72rem; font-weight: 600; letter-spacing: .03em; text-transform: uppercase;
  color: var(--accent); background: var(--accent-soft); padding: .3rem .7rem; border-radius: 999px; white-space: nowrap;
}
.card__desc { color: var(--ink-soft); margin: 0 0 1.2rem; font-size: .98rem; }
.tags { list-style: none; display: flex; flex-wrap: wrap; gap: .5rem; padding: 0; margin: 0 0 1.4rem; }
.tags li { font-family: var(--mono); font-size: .76rem; color: var(--ink-soft); background: var(--bg-alt); border: 1px solid var(--line); padding: .28rem .6rem; border-radius: 8px; }
.tags--lg li { font-size: .85rem; padding: .4rem .8rem; background: #fff; }
.card__link { margin-top: auto; font-weight: 600; color: var(--accent); display: inline-flex; align-items: center; gap: .35rem; }
.card__link:hover { gap: .6rem; }
.card__link span { transition: transform .15s ease; }

/* ---------- stack ---------- */
.stack { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.stack__group h4 { margin: 0 0 1rem; font-size: 1rem; color: var(--ink); }

/* ---------- about ---------- */
.about__body { max-width: 680px; display: grid; gap: 1.1rem; }
.about__body p { margin: 0; font-size: 1.08rem; color: var(--ink-soft); }
.about__body a { color: var(--accent); font-weight: 600; }
.about__body a:hover { text-decoration: underline; }

/* ---------- cta ---------- */
.section--cta { text-align: center; }
.cta h2 { font-size: clamp(1.9rem, 4vw, 2.6rem); margin: 0 0 .6rem; letter-spacing: -.02em; font-weight: 800; }
.cta p { color: var(--ink-soft); font-size: 1.1rem; margin: 0 0 2rem; }
.cta__buttons { display: flex; gap: .9rem; justify-content: center; flex-wrap: wrap; }

/* ---------- footer ---------- */
.footer { border-top: 1px solid var(--line); padding: 28px 0; }
.footer__inner { display: flex; align-items: center; justify-content: space-between; gap: 1rem; flex-wrap: wrap; color: var(--ink-faint); font-size: .9rem; }

/* ---------- responsive ---------- */
@media (max-width: 860px) {
  .hero__grid { grid-template-columns: 1fr; gap: 40px; }
  .hero__photo { order: -1; }
  .lead { max-width: none; }
  .cards { grid-template-columns: 1fr; }
  .stack { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 560px) {
  .nav__links { gap: 1rem; }
  .nav__links a:not(.btn) { display: none; }
  .section { padding: 64px 0; }
  .stack { grid-template-columns: 1fr; }
  .hero__stats { gap: 1.4rem; }
}