/* WongLab — calm editorial + technical accent */

:root {
  --bg: #0f1419;
  --bg-elevated: #161d26;
  --surface: #1c2530;
  --text: #e8edf4;
  --text-muted: #94a3b8;
  --accent: #3dbdaf;
  --accent-dim: #2a8f82;
  --accent-glow: rgba(61, 189, 175, 0.22);
  --border: rgba(232, 237, 244, 0.08);
  --font-sans: "DM Sans", system-ui, sans-serif;
  --font-display: "Instrument Serif", Georgia, serif;
  --radius: 12px;
  --radius-lg: 20px;
  --header-h: 4rem;
  --max: 1120px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
  background-image:
    radial-gradient(ellipse 120% 80% at 50% -40%, var(--accent-glow), transparent 55%),
    radial-gradient(ellipse 60% 40% at 100% 0%, rgba(61, 189, 175, 0.08), transparent 45%);
}

.container {
  width: min(100% - 2rem, var(--max));
  margin-inline: auto;
}

/* Header */

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  height: var(--header-h);
  border-bottom: 1px solid var(--border);
  background: rgba(15, 20, 25, 0.85);
  backdrop-filter: blur(12px);
}

.header-inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.logo {
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: -0.02em;
  color: var(--text);
  text-decoration: none;
}

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

.nav {
  display: flex;
  align-items: center;
  gap: 1.75rem;
}

.nav a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.925rem;
  font-weight: 500;
}

.nav a:hover {
  color: var(--text);
}

.nav-cta {
  padding: 0.45rem 1rem;
  border-radius: 999px;
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text) !important;
}

.nav-cta:hover {
  border-color: var(--accent-dim);
  color: var(--accent) !important;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 6px;
  width: 44px;
  height: 44px;
  padding: 0;
  border: 0;
  background: transparent;
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  height: 2px;
  width: 22px;
  background: var(--text);
  border-radius: 1px;
}

@media (max-width: 720px) {
  .nav-toggle {
    display: flex;
  }

  .nav {
    position: fixed;
    inset: var(--header-h) 0 auto 0;
    flex-direction: column;
    padding: 1.25rem;
    background: var(--bg-elevated);
    border-bottom: 1px solid var(--border);
    transform: translateY(-120%);
    opacity: 0;
    pointer-events: none;
    transition: transform 0.2s ease, opacity 0.2s ease;
  }

  .nav.is-open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }
}

/* Hero */

.hero {
  padding: clamp(3rem, 8vw, 5.5rem) 0 clamp(4rem, 10vw, 6rem);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: center;
}

@media (max-width: 900px) {
  .hero-grid {
    grid-template-columns: 1fr;
  }

  .hero-panel {
    order: -1;
    max-width: 420px;
    margin-inline: auto;
  }
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--accent);
  margin: 0 0 1rem;
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 5.5vw, 3.65rem);
  font-weight: 400;
  line-height: 1.12;
  margin: 0 0 1.25rem;
  letter-spacing: -0.02em;
}

.hero h1 em {
  font-style: italic;
  color: var(--accent);
}

.lede {
  font-size: 1.08rem;
  color: var(--text-muted);
  max-width: 36ch;
  margin: 0 0 1.75rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.65rem 1.35rem;
  font-family: inherit;
  font-size: 0.9rem;
  font-weight: 600;
  text-decoration: none;
  border-radius: 999px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s, color 0.15s, transform 0.15s;
}

.btn:active {
  transform: scale(0.98);
}

.btn-primary {
  background: var(--accent);
  color: #061312;
}

.btn-primary:hover {
  background: #54d4c4;
}

.btn-ghost {
  background: transparent;
  border-color: var(--border);
  color: var(--text);
}

.btn-ghost:hover {
  border-color: var(--text-muted);
}

.btn-large {
  padding: 0.85rem 1.75rem;
  font-size: 1rem;
}

/* Hero panel mock */

.hero-panel {
  perspective: 800px;
}

.panel-card {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
  transform: rotateY(-6deg) rotateX(4deg);
  box-shadow:
    0 24px 50px rgba(0, 0, 0, 0.35),
    0 0 0 1px rgba(61, 189, 175, 0.06) inset;
}

@media (max-width: 900px) {
  .panel-card {
    transform: none;
  }
}

.panel-label {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent);
  font-weight: 600;
}

.panel-board {
  margin-top: 1rem;
  height: 160px;
  border-radius: var(--radius);
  background:
    linear-gradient(135deg, rgba(61, 189, 175, 0.08) 0%, transparent 50%),
    repeating-linear-gradient(
      0deg,
      transparent,
      transparent 23px,
      rgba(232, 237, 244, 0.06) 23px,
      rgba(232, 237, 244, 0.06) 24px
    ),
    repeating-linear-gradient(
      90deg,
      transparent,
      transparent 23px,
      rgba(232, 237, 244, 0.06) 23px,
      rgba(232, 237, 244, 0.06) 24px
    ),
    var(--surface);
  border: 1px solid var(--border);
}

.panel-meta {
  list-style: none;
  margin: 1rem 0 0;
  padding: 0;
  font-size: 0.85rem;
}

.panel-meta li {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.4rem 0;
  border-top: 1px solid var(--border);
  color: var(--text-muted);
}

.panel-meta span {
  color: var(--text);
  font-weight: 500;
}

/* Sections */

.section-title {
  font-family: var(--font-display);
  font-size: clamp(1.85rem, 3.5vw, 2.35rem);
  font-weight: 400;
  margin: 0 0 0.75rem;
}

.section-intro {
  color: var(--text-muted);
  max-width: 52ch;
  margin: 0 0 2rem;
  font-size: 1.05rem;
}

.services {
  padding: 4rem 0;
  border-top: 1px solid var(--border);
}

.service-chips {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  padding: 0;
  margin: 0;
}

.service-chips li {
  padding: 0.5rem 1rem;
  background: var(--surface);
  border-radius: 999px;
  font-size: 0.88rem;
  color: var(--text-muted);
  border: 1px solid var(--border);
}

.platform {
  padding: 4rem 0 5rem;
  border-top: 1px solid var(--border);
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
}

@media (max-width: 900px) {
  .feature-grid {
    grid-template-columns: 1fr;
  }
}

.feature-card {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.feature-card:hover {
  border-color: rgba(61, 189, 175, 0.25);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.2);
}

.feature-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius);
  background: var(--surface);
  color: var(--accent);
  margin-bottom: 1rem;
}

.feature-card h3 {
  font-size: 1.05rem;
  font-weight: 600;
  margin: 0 0 0.5rem;
  letter-spacing: -0.01em;
}

.feature-card p {
  margin: 0;
  font-size: 0.92rem;
  color: var(--text-muted);
  line-height: 1.55;
}

/* CTA */

.cta {
  padding: clamp(3.5rem, 8vw, 5rem) 0;
  border-top: 1px solid var(--border);
}

.cta-inner {
  text-align: center;
  max-width: 560px;
}

.cta-inner h2 {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 3vw, 2.2rem);
  font-weight: 400;
  margin: 0 0 0.75rem;
}

.cta-inner > p {
  color: var(--text-muted);
  margin: 0 0 1.5rem;
}

.cta-note {
  font-size: 0.8rem;
  color: var(--text-muted);
  opacity: 0.85;
  margin-top: 1rem !important;
}

/* Footer */

.site-footer {
  padding: 2rem 0 2.5rem;
  border-top: 1px solid var(--border);
}

.footer-inner {
  text-align: center;
}

.logo-footer {
  font-weight: 700;
  font-size: 1rem;
}

.footer-tag {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin: 0.35rem 0 0.75rem;
}

.footer-copy {
  font-size: 0.8rem;
  color: var(--text-muted);
  opacity: 0.75;
  margin: 0;
}