/* waitlist template — single-screen, centered, dramatic. */

:root {
  --container: 640px;
  --space-1: 4px;  --space-2: 8px;  --space-3: 12px;
  --space-4: 16px; --space-5: 24px; --space-6: 32px;
  --space-7: 48px; --space-8: 64px; --space-9: 96px;
  --radius: 10px; --radius-lg: 16px;
  --transition: 180ms ease;
  --font-sans: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

[data-density="compact"]     { --section-pad: var(--space-7); --hero-pad: var(--space-8); }
[data-density="comfortable"] { --section-pad: var(--space-8); --hero-pad: var(--space-9); }
[data-density="airy"]        { --section-pad: var(--space-9); --hero-pad: 140px; }

[data-theme="light"] { --bg: #fafbfd; --fg: #0e1628; --muted: #5b6478; --surface: #f0f3f8; --border: #e2e7f0; --on-primary: #ffffff; }
[data-theme="dark"]  { --bg: #0a0d15; --fg: #ecf0fa; --muted: #98a3b6; --surface: #131a2a; --border: #1d2538; --on-primary: #ffffff; }
[data-theme="ai"]    { --bg: #06070d; --fg: #ecf0fa; --muted: #94a3bd; --surface: #0e1220; --border: #1c2235; --on-primary: #ffffff; }

[data-palette="slate"]   { --primary: #334155; --primary-hover: #1e293b; --accent: #64748b; }
[data-palette="indigo"]  { --primary: #4f46e5; --primary-hover: #4338ca; --accent: #818cf8; }
[data-palette="emerald"] { --primary: #059669; --primary-hover: #047857; --accent: #34d399; }
[data-palette="rose"]    { --primary: #e11d48; --primary-hover: #be123c; --accent: #fb7185; }
[data-palette="amber"]   { --primary: #b45309; --primary-hover: #92400e; --accent: #f59e0b; }

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
html { background: var(--bg); color: var(--fg); font-family: var(--font-sans); line-height: 1.55; }
body { display: flex; flex-direction: column; min-height: 100vh; }
img { max-width: 100%; height: auto; display: block; }
a { color: var(--primary); text-decoration: none; }
a:hover { color: var(--primary-hover); }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; border-radius: 4px; }

.container { max-width: var(--container); margin: 0 auto; padding: 0 var(--space-5); }

/* HEADER */
.hdr { padding: var(--space-4) 0; }
.hdr-inner { display: flex; align-items: center; justify-content: center; }
.brand { display: flex; align-items: center; gap: var(--space-2); color: var(--fg); font-weight: 700; text-decoration: none; }
.brand img { width: auto; height: 28px; }

/* BUTTONS */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: var(--space-2); padding: 10px 18px; border-radius: var(--radius); font-weight: 700; transition: var(--transition); border: 1px solid transparent; text-decoration: none; }
.btn-lg { padding: 16px 32px; font-size: 1.1rem; }
.btn-primary { background: var(--primary); color: var(--on-primary); }
.btn-primary:hover, .btn-primary:focus-visible { background: var(--primary-hover); text-decoration: none; }

/* HERO */
.hero {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--hero-pad) 0;
  text-align: center;
  background:
    radial-gradient(ellipse 700px 350px at 50% 20%, color-mix(in oklab, var(--primary) 14%, transparent), transparent 70%);
}
.hero-inner { max-width: var(--container); }
.hero-headline {
  font-weight: 800;
  font-size: clamp(2.5rem, 7vw, 4rem);
  line-height: 1.05;
  letter-spacing: -0.03em;
  margin: 0 0 var(--space-5);
}
.hero-description {
  color: var(--muted);
  font-size: clamp(1.05rem, 1.8vw, 1.25rem);
  line-height: 1.6;
  max-width: 52ch;
  margin: 0 auto var(--space-7);
}

/* FEATURES */
.features { padding: 0 0 var(--section-pad); text-align: center; }
.features-heading {
  font-weight: 700;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--muted);
  margin: 0 0 var(--space-5);
}
.features-grid {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-4);
}
.feature-card {
  padding: var(--space-5);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  text-align: left;
}
.feature-title {
  font-weight: 700;
  font-size: 1rem;
  margin: 0 0 var(--space-2);
}
.feature-desc {
  color: var(--muted);
  font-size: 0.9rem;
  margin: 0;
  line-height: 1.5;
}

/* SOCIAL */
.social { padding: var(--space-6) 0; text-align: center; }
.social-row {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  gap: var(--space-3);
  justify-content: center;
  flex-wrap: wrap;
}
.social-row a {
  display: inline-flex;
  align-items: center;
  padding: 6px 14px;
  border: 1px solid var(--border);
  border-radius: 999px;
  color: var(--muted);
  font-size: 0.85rem;
  transition: var(--transition);
}
.social-row a:hover {
  color: var(--primary);
  border-color: var(--primary);
}

/* FOOTER + WATERMARK */
.ddv-footer { padding: var(--space-6) 0; border-top: 1px solid var(--border); text-align: center; color: var(--muted); }
.ddv-footer-inner small { font-size: 0.8rem; }
.ddv-watermark { position: fixed; bottom: 12px; right: 12px; z-index: 50; }
.ddv-watermark a { display: inline-flex; align-items: center; padding: 6px 10px; background: var(--bg); color: var(--muted); border: 1px solid var(--border); border-radius: 999px; font-size: 0.78rem; box-shadow: 0 1px 4px rgba(0,0,0,0.06); text-decoration: none; }
.ddv-watermark a:hover { color: var(--fg); }