/* ===== CS SOUND LABS — Global Stylesheet ===== */

@import url('https://fonts.googleapis.com/css2?family=Orbitron:wght@400;700;900&family=Inter:wght@300;400;500;600&display=swap');

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

:root {
  --navy:    #0A0E1A;
  --charcoal:#1C2130;
  --card:    #141827;
  --cyan:    #00C8FF;
  --cyan-dim:#0099CC;
  --white:   #F0F4FF;
  --slate:   #7A8AA0;
  --border:  #2A3450;
  --font-display: 'Orbitron', 'Courier New', monospace;
  --font-body:    'Inter', Arial, sans-serif;
}

html { scroll-behavior: smooth; }

body {
  background-color: var(--navy);
  color: var(--white);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

img { max-width: 100%; display: block; }
a  { color: var(--cyan); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ── Header ── */
.site-header {
  background: var(--charcoal);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
  height: 68px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.site-logo {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1rem, 2.5vw, 1.35rem);
  color: var(--white);
  letter-spacing: 0.08em;
  text-decoration: none;
  white-space: nowrap;
}

.site-logo span {
  color: var(--cyan);
}

/* Nav */
.site-nav {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.site-nav a {
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--slate);
  text-transform: uppercase;
  padding: 0.45rem 0.9rem;
  border-radius: 4px;
  transition: color 0.2s, background 0.2s;
  text-decoration: none;
  white-space: nowrap;
}

.site-nav a:hover,
.site-nav a.active {
  color: var(--cyan);
  background: rgba(0, 200, 255, 0.08);
}

/* Hamburger (mobile) */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.4rem;
  flex-direction: column;
  gap: 5px;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--white);
  border-radius: 2px;
  transition: transform 0.3s, opacity 0.3s;
}

/* ── Main Content ── */
main { flex: 1; }

/* ── Footer ── */
.site-footer {
  background: var(--charcoal);
  border-top: 1px solid var(--border);
  padding: 1.5rem;
  text-align: center;
  font-size: 0.8rem;
  color: var(--slate);
  letter-spacing: 0.03em;
}

/* ── Waveform Divider ── */
.wave-divider {
  width: 100%;
  overflow: hidden;
  line-height: 0;
  margin: 0;
}

.wave-divider svg {
  display: block;
  width: 100%;
}

/* ── Section Utility ── */
.section {
  padding: 5rem 1.5rem;
}

.section-inner {
  max-width: 1100px;
  margin: 0 auto;
}

.section-label {
  font-family: var(--font-display);
  font-size: 0.65rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--cyan);
  margin-bottom: 0.75rem;
}

.section-heading {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 4vw, 2.6rem);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 1.25rem;
  color: var(--white);
}

.section-body {
  font-size: 1.05rem;
  color: var(--slate);
  max-width: 650px;
  line-height: 1.75;
}

/* ── Cards ── */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
  margin-top: 3rem;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 2rem 1.75rem;
  transition: border-color 0.25s, transform 0.25s;
}

.card:hover {
  border-color: var(--cyan-dim);
  transform: translateY(-4px);
}

.card-icon {
  font-size: 2rem;
  margin-bottom: 1rem;
}

.card-title {
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  margin-bottom: 0.75rem;
  color: var(--white);
}

.card-text {
  font-size: 0.9rem;
  color: var(--slate);
  line-height: 1.7;
}

/* ── CTA Button ── */
.btn {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  padding: 0.85rem 2rem;
  border-radius: 4px;
  border: 2px solid var(--cyan);
  color: var(--cyan);
  background: transparent;
  cursor: pointer;
  transition: background 0.2s, color 0.2s, transform 0.2s, box-shadow 0.2s;
  text-decoration: none;
}

.btn:hover {
  background: var(--cyan);
  color: var(--navy);
  text-decoration: none;
  transform: translateY(-4px);
  box-shadow: 0 8px 20px rgba(0, 200, 255, 0.25);
}

.btn-solid:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 20px rgba(0, 200, 255, 0.25);
}

.btn-solid {
  background: var(--cyan);
  color: var(--navy);
}

.btn-solid:hover {
  background: transparent;
  color: var(--cyan);
}

/* ── Form ── */
.form-group {
  margin-bottom: 1.5rem;
}

.form-group label {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--slate);
  margin-bottom: 0.5rem;
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--white);
  font-family: var(--font-body);
  font-size: 0.95rem;
  padding: 0.75rem 1rem;
  transition: border-color 0.2s;
  -webkit-appearance: none;
  appearance: none;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--cyan);
}

.form-group textarea { resize: vertical; min-height: 140px; }

/* ── Team / About Grid ── */
.team-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.team-card {
  text-align: center;
}

.team-avatar {
  width: 90px;
  height: 90px;
  border-radius: 50%;
  background: var(--charcoal);
  border: 2px solid var(--border);
  margin: 0 auto 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
}

.team-name {
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  margin-bottom: 0.25rem;
}

.team-role {
  font-size: 0.8rem;
  color: var(--cyan);
  letter-spacing: 0.05em;
  margin-bottom: 0.5rem;
}

.team-bio {
  font-size: 0.85rem;
  color: var(--slate);
  line-height: 1.65;
}

/* ── Stats Bar ── */
.stats-bar {
  background: var(--charcoal);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 3rem 1.5rem;
}

.stats-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  justify-content: space-around;
  flex-wrap: wrap;
  gap: 2rem;
  text-align: center;
}

.stat-item {}

.stat-number {
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 3.2rem);
  font-weight: 900;
  color: var(--cyan);
  line-height: 1;
}

.stat-label {
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--slate);
  margin-top: 0.4rem;
}

/* ── Hero (index) ── */
.hero {
  background: var(--navy);
  padding: 6rem 1.5rem 4rem;
  position: relative;
  overflow: hidden;
}

.hero-inner {
  max-width: 1100px;
  margin: 0 auto;
  position: relative;
  z-index: 2;
}

.hero-eyebrow {
  font-family: var(--font-display);
  font-size: 0.65rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--cyan);
  margin-bottom: 1.25rem;
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 6vw, 4.5rem);
  font-weight: 900;
  line-height: 1.1;
  margin-bottom: 1.5rem;
  max-width: 800px;
}

.hero-title em {
  font-style: normal;
  color: var(--cyan);
}

.hero-sub {
  font-size: clamp(1rem, 2vw, 1.2rem);
  color: var(--slate);
  max-width: 560px;
  line-height: 1.75;
  margin-bottom: 2.5rem;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

/* Waveform animation */
.hero-wave {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  opacity: 0.45;
  z-index: 1;
}

.wave-bar {
  animation: pulse 2.2s ease-in-out infinite alternate;
  transform-origin: bottom;
}

.wave-bar:nth-child(2n)   { animation-delay: 0.1s; }
.wave-bar:nth-child(3n)   { animation-delay: 0.2s; }
.wave-bar:nth-child(4n)   { animation-delay: 0.35s; }
.wave-bar:nth-child(5n)   { animation-delay: 0.05s; }
.wave-bar:nth-child(7n)   { animation-delay: 0.5s; }
.wave-bar:nth-child(11n)  { animation-delay: 0.25s; }
.wave-bar:nth-child(13n)  { animation-delay: 0.45s; }

@keyframes pulse {
  from { transform: scaleY(0.3); }
  to   { transform: scaleY(1); }
}

@media (prefers-reduced-motion: reduce) {
  .wave-bar { animation: none; }
}

/* ── Page Hero (inner pages) ── */
.page-hero {
  background: var(--charcoal);
  border-bottom: 1px solid var(--border);
  padding: 4rem 1.5rem 3rem;
}

.page-hero-inner {
  max-width: 1100px;
  margin: 0 auto;
}

/* ── Contact Layout ── */
.contact-layout {
  display: grid;
  grid-template-columns: 1fr 1.6fr;
  gap: 4rem;
  align-items: start;
}

.contact-info p {
  font-size: 0.95rem;
  color: var(--slate);
  line-height: 1.75;
  margin-bottom: 2rem;
}

.contact-detail {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  margin-bottom: 1.25rem;
  font-size: 0.9rem;
  color: var(--slate);
}

.contact-detail-icon {
  color: var(--cyan);
  font-size: 1.1rem;
  margin-top: 0.1rem;
  flex-shrink: 0;
}

/* ── Success Message ── */
.form-success {
  display: none;
  background: rgba(0, 200, 255, 0.08);
  border: 1px solid var(--cyan-dim);
  border-radius: 6px;
  padding: 1.25rem 1.5rem;
  color: var(--cyan);
  font-size: 0.95rem;
  margin-top: 1rem;
}

/* ── Responsive ── */
@media (max-width: 768px) {
  .nav-toggle {
    display: flex;
  }

  .site-nav {
    display: none;
    position: absolute;
    top: 68px;
    left: 0;
    right: 0;
    background: var(--charcoal);
    flex-direction: column;
    padding: 1rem;
    border-bottom: 1px solid var(--border);
    gap: 0.25rem;
  }

  .site-nav.open {
    display: flex;
  }

  .site-nav a {
    width: 100%;
    padding: 0.7rem 1rem;
  }

  .contact-layout {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

  .section {
    padding: 3.5rem 1.25rem;
  }

  .hero {
    padding: 4rem 1.25rem 3rem;
  }
}

@media (max-width: 480px) {
  .stats-inner {
    flex-direction: column;
    align-items: center;
  }

  .hero-actions {
    flex-direction: column;
  }

  .btn {
    text-align: center;
  }
}