/* SONIC1 public marketing site — charcoal grey theme */
/* Placeholder stylesheet: basic dark theme, not a finished design pass. */

:root {
  --bg: #242426;            /* page charcoal */
  --bg-alt: #2e2e31;       /* raised panels / cards */
  --bg-ink: #1b1b1d;       /* deep sections */
  --fg: #e8e8ea;           /* primary text */
  --fg-muted: #a9a9ad;     /* secondary text */
  --line: #3d3d41;         /* borders */
  --accent: #c8a84a;       /* brass gold accent */
  --font: "Segoe UI", "Helvetica Neue", Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font);
  background: var(--bg);
  color: var(--fg);
  line-height: 1.55;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

h1, h2, h3 { font-weight: 600; }

/* ---------- header ---------- */

.site-header {
  position: sticky;
  top: 0;
  background: var(--bg-ink);
  border-bottom: 1px solid var(--line);
  padding: 14px 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand { display: flex; align-items: center; gap: 12px; }
.brand-logo {
  width: 40px; height: 40px;
  display: inline-flex; align-items: center; justify-content: center;
  background: var(--accent); color: var(--bg-ink);
  font-weight: 700; border-radius: 6px;
}
.brand-name { display: block; font-size: 1.15rem; color: var(--fg); letter-spacing: 0.06em; }
.brand-company { display: block; font-size: 0.78rem; color: var(--fg-muted); }

.topnav { display: flex; gap: 20px; }
.topnav a { color: var(--fg-muted); font-size: 0.9rem; }
.topnav a:hover { color: var(--fg); }

/* ---------- hero ---------- */

.hero {
  background: linear-gradient(180deg, var(--bg-ink), var(--bg));
  padding: 56px 32px;
  display: grid;
  grid-template-columns: 1.6fr 1fr;
  gap: 32px;
  align-items: center;
}
.hero h1 { font-size: 1.7rem; }
.hero .lede { color: var(--fg-muted); max-width: 60ch; }

.btn {
  display: inline-block;
  background: var(--accent); color: var(--bg-ink);
  padding: 11px 20px; border-radius: 4px; font-weight: 600;
}
.btn:hover { filter: brightness(1.08); }

.hero-img img { width: 100%; max-width: 360px; display: block; }

/* ---------- cards / strengths ---------- */

.cards { padding: 56px 32px; }
.cards h2 { font-size: 1.25rem; }

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 22px;
}
.card {
  background: var(--bg-alt);
  border: 1px solid var(--line);
  padding: 22px;
  border-radius: 6px;
}
.card h3 { color: var(--accent); margin-top: 0; }

/* ---------- product visuals ---------- */

.product { padding: 48px 32px; }
.product h2 { font-size: 1.25rem; }
.muted { color: var(--fg-muted); }

.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 22px;
}
figure {
  margin: 0;
  background: var(--bg-alt);
  border: 1px solid var(--line);
  padding: 14px;
  border-radius: 6px;
}
figure img { width: 100%; display: block; background: var(--bg-ink); border-radius: 4px; }
figcaption { color: var(--fg-muted); font-size: 0.85rem; margin-top: 10px; text-align: center; }

/* ---------- markets ---------- */

.markets { padding: 48px 32px; background: var(--bg-alt); }
.markets h2 { font-size: 1.25rem; }
.markets ul { padding-left: 1.1rem; }
.markets li { color: var(--fg-muted); margin-bottom: 0.6rem; }
.markets strong { color: var(--fg); }

/* ---------- contact / business card ---------- */

.contact { padding: 56px 32px; }
.contact h2 { font-size: 1.25rem; }

.card-sheet {
  background: var(--bg);
  border: 1px solid var(--line);
  padding: 28px 30px;
  border-radius: 6px;
  max-width: 520px;
}
.card-sheet .contact-brand { font-size: 1.4rem; color: var(--accent); font-weight: 700; letter-spacing: 0.08em; }
.card-sheet .contact-company { font-weight: 600; }
.card-sheet .contact-tag { font-style: italic; color: var(--fg-muted); font-size: 0.85rem; }
.card-sheet .contact-line { color: var(--fg-muted); }

/* ---------- footer ---------- */

.site-footer {
  padding: 22px 32px;
  background: var(--bg-ink);
  color: var(--fg-muted);
  text-align: center;
  font-size: 0.85rem;
}

/* ---------- responsive ---------- */

@media (max-width: 760px) {
  .topnav { display: none; }
  .hero { grid-template-columns: 1fr; }
  .site-header { flex-wrap: wrap; }
}