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

:root {
  --bg: #07080f;
  --panel: rgba(255,255,255,.045);
  --line: rgba(255,255,255,.09);
  --txt: #e9ecf5;
  --muted: #aab4ca;
  --cyan: #4dd8ff;
  --violet: #8b5bff;
  --pink: #ff5ca8;
}

body {
  font-family: 'Segoe UI', 'Noto Sans Thai', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg); color: var(--txt);
  overflow-x: hidden; position: relative; min-height: 100vh;
}
a { color: inherit; text-decoration: none; }

/* แสงออโรร่าพื้นหลัง */
.aurora {
  position: fixed; inset: -20% -30% auto -30%; height: 90vh; z-index: 0;
  pointer-events: none; filter: blur(90px); opacity: .55;
  background:
    radial-gradient(40% 55% at 18% 30%, rgba(139,91,255,.55), transparent 70%),
    radial-gradient(38% 50% at 78% 22%, rgba(77,216,255,.42), transparent 70%),
    radial-gradient(30% 45% at 55% 70%, rgba(255,92,168,.35), transparent 70%);
  animation: drift 14s ease-in-out infinite alternate;
}
@keyframes drift {
  from { transform: translateY(-4%) rotate(-1.5deg) scale(1); }
  to   { transform: translateY(4%)  rotate(1.5deg)  scale(1.06); }
}
.grid-bg {
  position: fixed; inset: 0; z-index: 0; pointer-events: none;
  background-image:
    linear-gradient(rgba(255,255,255,.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.035) 1px, transparent 1px);
  background-size: 46px 46px;
  mask-image: radial-gradient(70% 60% at 50% 30%, #000 40%, transparent 100%);
  -webkit-mask-image: radial-gradient(70% 60% at 50% 30%, #000 40%, transparent 100%);
}
main, .hero, .nav { position: relative; z-index: 1; }

/* nav */
.nav {
  display: flex; align-items: center; justify-content: space-between;
  max-width: 1060px; margin: 0 auto; padding: 22px 20px;
  position: sticky; top: 0; z-index: 5;
  backdrop-filter: blur(12px); background: rgba(7,8,15,.55);
  border: 1px solid var(--line); border-radius: 0 0 18px 18px;
  border-top: none;
}
.logo { font-size: 1.25rem; font-weight: 800; letter-spacing:.5px; }
.logo span { background: linear-gradient(90deg, var(--cyan), var(--violet)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.nav-links { display: flex; gap: 22px; font-size: .95rem; color: var(--muted); }
.nav-links a:hover { color: var(--cyan); }

/* hero */
.hero { text-align: center; padding: 84px 20px 40px; max-width: 900px; margin: 0 auto; }
.badge {
  display: inline-block; font-size: .8rem; letter-spacing: 1px; color: #d7f3ff;
  padding: 7px 16px; border-radius: 999px; margin-bottom: 26px;
  background: linear-gradient(90deg, rgba(77,216,255,.16), rgba(139,91,255,.16));
  border: 1px solid rgba(77,216,255,.35);
}
.hero h1 { font-size: clamp(2rem, 5.6vw, 3.4rem); line-height: 1.18; font-weight: 800; }
.grad {
  background: linear-gradient(90deg, var(--cyan), var(--violet) 55%, var(--pink));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.lead { color: var(--muted); margin-top: 20px; font-size: 1.08rem; line-height: 1.8; }
.hero-cta { margin-top: 32px; display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }
.btn {
  padding: 13px 30px; border-radius: 999px; font-weight: 700; font-size: .95rem;
  transition: .2s; border: 1px solid transparent;
}
.btn.primary { background: linear-gradient(90deg, var(--cyan), var(--violet)); color: #061019; box-shadow: 0 10px 30px rgba(110,142,255,.35); }
.btn.primary:hover { transform: translateY(-2px); box-shadow: 0 14px 40px rgba(110,142,255,.5); }
.btn.ghost { border-color: var(--line); color: var(--txt); background: var(--panel); }
.btn.ghost:hover { border-color: var(--cyan); color: var(--cyan); }
.hero-stats {
  margin-top: 46px; display: flex; gap: 12px; justify-content: center; flex-wrap: wrap;
}
.hero-stats div {
  background: var(--panel); border: 1px solid var(--line); border-radius: 14px;
  padding: 14px 26px; min-width: 130px;
}
.hero-stats b { display: block; font-size: 1.05rem; }
.hero-stats small { color: var(--muted); font-size: .78rem; }

/* sections */
.section { max-width: 1060px; margin: 0 auto; padding: 40px 20px; }
.section-head { text-align: center; margin-bottom: 36px; }
.label { color: var(--cyan); font-size: .78rem; letter-spacing: 3px; font-weight: 700; }
.section-head h2 { font-size: clamp(1.5rem, 3.4vw, 2.1rem); margin: 10px 0 8px; }
.section-head p { color: var(--muted); }

/* การ์ดความสามารถ */
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 18px; }
.card {
  background: var(--panel); border: 1px solid var(--line); border-radius: 18px;
  padding: 30px 26px; transition: .25s; backdrop-filter: blur(8px);
}
.card:hover { transform: translateY(-5px); border-color: rgba(77,216,255,.45); box-shadow: 0 18px 44px rgba(0,0,0,.45); }
.card .icon { font-size: 2.2rem; margin-bottom: 14px; }
.card h3 { font-size: 1.15rem; margin-bottom: 10px; }
.card p { color: var(--muted); font-size: .93rem; line-height: 1.75; }
.tags { margin-top: 16px; display: flex; gap: 8px; flex-wrap: wrap; }
.tags span {
  font-size: .72rem; padding: 5px 12px; border-radius: 999px;
  border: 1px solid var(--line); color: var(--muted);
}

/* ผลงาน */
.work-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 18px; }
.work-card {
  display: block; position: relative; overflow: hidden;
  background: linear-gradient(180deg, rgba(255,255,255,.06), rgba(255,255,255,.03));
  border: 1px solid var(--line); border-radius: 22px; padding: 30px 26px;
  transition: .25s; min-height: 210px;
}
.work-card.stretch {
  background: linear-gradient(160deg, rgba(139,91,255,.18), rgba(77,216,255,.10));
  grid-column: span 2;
}
.work-card:hover { transform: translateY(-5px); border-color: rgba(139,91,255,.5); }
.work-card.dim { opacity: .62; cursor: default; }
.work-icon { font-size: 2.4rem; margin-bottom: 12px; }
.work-card h3 { font-size: 1.12rem; margin-bottom: 10px; }
.work-card p { color: var(--muted); font-size: .92rem; line-height: 1.75; }
.mono { font-family: ui-monospace, Consolas, monospace; color: var(--cyan); font-weight: 600; }
.go { margin-top: 18px; font-weight: 700; color: var(--cyan); }
.go.soon { color: var(--muted); font-weight: 500; }

/* contact */
.contact-row { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }
.contact-card {
  background: var(--panel); border: 1px solid var(--line); border-radius: 999px;
  padding: 14px 28px; font-weight: 600; transition: .2s;
}
.contact-card:hover { border-color: var(--cyan); color: var(--cyan); transform: translateY(-2px); }
.contact-card.soft { color: var(--muted); border-style: dashed; }

/* footer */
.foot { text-align: center; padding: 60px 20px 46px; border-top: 1px solid var(--line); margin-top: 40px; }
.foot p { color: var(--muted); font-size: .9rem; margin-top: 10px; }
.foot .mini { opacity: .55; font-size: .78rem; }
.logo.small { font-size: 1rem; }

@media (max-width: 700px) {
  .nav { padding: 16px; }
  .nav-links { gap: 14px; font-size: .85rem; }
  .work-card.stretch { grid-column: span 1; }
  .hero { padding-top: 60px; }
}