/* ── Reset & Base ─────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg:        #080b10;
  --bg2:       #0d1117;
  --surface:   #111822;
  --border:    rgba(255,255,255,0.07);
  --accent:    #00c8ff;
  --accent2:   #7b5cff;
  --text:      #e2e8f0;
  --muted:     #64748b;
  --radius:    12px;
  --nav-h:     68px;
  --ease:      cubic-bezier(0.16, 1, 0.3, 1);
}

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }

.container {
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 24px;
}

.accent { color: var(--accent); }

/* ── Nav ──────────────────────────────────────────────────── */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 40px;
  z-index: 100;
  transition: background 0.4s, backdrop-filter 0.4s, border-bottom 0.4s;
}

.nav.scrolled {
  background: rgba(8, 11, 16, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: -0.01em;
}

.logo-mark {
  width: 32px; height: 32px;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.95rem;
  font-weight: 800;
  color: #fff;
}

.nav-links {
  display: flex;
  list-style: none;
  gap: 32px;
}

.nav-links a {
  font-size: 0.9rem;
  color: var(--muted);
  transition: color 0.2s;
}
.nav-links a:hover { color: var(--text); }

.nav-cta {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--accent);
  border: 1px solid rgba(0, 200, 255, 0.35);
  padding: 8px 20px;
  border-radius: 999px;
  transition: background 0.2s, color 0.2s;
}
.nav-cta:hover {
  background: var(--accent);
  color: #000;
}

/* ── Hero ─────────────────────────────────────────────────── */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

#heroCanvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 780px;
  padding: 0 24px;
}

.hero-eyebrow {
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 24px;
}

.hero-title {
  font-size: clamp(2.6rem, 6vw, 5rem);
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -0.03em;
  margin-bottom: 24px;
}

.hero-sub {
  font-size: 1.1rem;
  color: var(--muted);
  max-width: 560px;
  margin: 0 auto 40px;
  line-height: 1.7;
}

.btn-primary {
  display: inline-block;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  color: #fff;
  font-weight: 600;
  font-size: 0.9rem;
  padding: 14px 32px;
  border-radius: 999px;
  border: none;
  cursor: pointer;
  transition: opacity 0.2s, transform 0.2s;
  letter-spacing: 0.01em;
}
.btn-primary:hover { opacity: 0.88; transform: translateY(-1px); }
.btn-full { width: 100%; text-align: center; display: block; }

.hero-scroll-hint {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  z-index: 2;
  color: var(--muted);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.scroll-line {
  width: 1px;
  height: 48px;
  background: linear-gradient(to bottom, var(--muted), transparent);
  animation: scrollPulse 1.8s ease-in-out infinite;
}

@keyframes scrollPulse {
  0%, 100% { opacity: 0.3; transform: scaleY(1); }
  50%       { opacity: 1;   transform: scaleY(1.15); }
}

/* ── About / Cards ────────────────────────────────────────── */
.about {
  padding: 120px 0;
  background: var(--bg2);
}

.section-title {
  font-size: clamp(1.8rem, 3.5vw, 2.8rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.15;
  margin-bottom: 56px;
}

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

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px 32px;
  transition: border-color 0.3s, transform 0.3s;
}
.card:hover {
  border-color: rgba(0, 200, 255, 0.3);
  transform: translateY(-4px);
}

.card-icon {
  width: 44px; height: 44px;
  color: var(--accent);
  margin-bottom: 20px;
}
.card-icon svg { width: 100%; height: 100%; }

.card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 10px;
  letter-spacing: -0.01em;
}

.card p { font-size: 0.9rem; color: var(--muted); line-height: 1.65; }

/* ── Contact ──────────────────────────────────────────────── */
.contact {
  padding: 120px 0;
  background: var(--bg);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 80px;
  align-items: start;
}

.contact-left p {
  color: var(--muted);
  margin-bottom: 32px;
  font-size: 1rem;
  line-height: 1.7;
}

.contact-details {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.contact-details li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.9rem;
  color: var(--muted);
}
.contact-details svg { width: 18px; height: 18px; flex-shrink: 0; color: var(--accent); }

/* Form */
.contact-form {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 40px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 7px;
}

label {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--muted);
  letter-spacing: 0.03em;
}

input, select, textarea {
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px 14px;
  font-size: 0.9rem;
  color: var(--text);
  font-family: inherit;
  outline: none;
  transition: border-color 0.2s, background 0.2s;
  -webkit-appearance: none;
  appearance: none;
}

select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%2364748b' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  padding-right: 36px;
}

select option { background: var(--surface); color: var(--text); }

input:focus, select:focus, textarea:focus {
  border-color: rgba(0, 200, 255, 0.5);
  background: rgba(0, 200, 255, 0.04);
}

input::placeholder, textarea::placeholder { color: var(--muted); opacity: 0.6; }

textarea { resize: vertical; min-height: 110px; }

.form-note {
  font-size: 0.75rem;
  color: var(--muted);
  text-align: center;
  margin-top: -4px;
}

/* ── Footer ───────────────────────────────────────────────── */
.footer {
  border-top: 1px solid var(--border);
  padding: 32px 0;
  background: var(--bg);
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.footer-copy { font-size: 0.8rem; color: var(--muted); }

/* ── Scroll Reveal ────────────────────────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Stagger children inside a revealed parent */
.cards .reveal:nth-child(1) { transition-delay: 0s; }
.cards .reveal:nth-child(2) { transition-delay: 0.1s; }
.cards .reveal:nth-child(3) { transition-delay: 0.2s; }

/* ── Responsive ───────────────────────────────────────────── */
@media (max-width: 768px) {
  .nav { padding: 0 20px; }
  .nav-links { display: none; }
  .contact-grid { grid-template-columns: 1fr; gap: 48px; }
  .form-row { grid-template-columns: 1fr; }
  .contact-form { padding: 28px 20px; }
  .footer-inner { flex-direction: column; gap: 12px; text-align: center; }
}