/* LiveShot — liveshot.app
 * Vanilla CSS, no build step. Brand mirrors the iOS app:
 *   - #CAFF00 lime as primary accent
 *   - #9FCC00 deep lime for text on light backgrounds (WCAG AA on white)
 *   - Heavy black weights, tracking-tight
 *   - Mobile-first
 */

:root {
  --lime: #CAFF00;
  --lime-deep: #9FCC00;
  --bg: #0a0a0a;
  --surface: #141414;
  --surface-2: #1f1f1f;
  --text: #f5f5f5;
  --text-muted: #a1a1a1;
  --border: rgba(255, 255, 255, 0.08);
  --content-max: 720px;
}

@media (prefers-color-scheme: light) {
  :root {
    --bg: #ffffff;
    --surface: #f5f5f7;
    --surface-2: #ebebed;
    --text: #1d1d1f;
    --text-muted: #6e6e73;
    --border: rgba(0, 0, 0, 0.08);
  }
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Helvetica Neue", Arial, sans-serif;
  font-size: 17px;
  line-height: 1.55;
  background: var(--bg);
  color: var(--text);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a {
  color: var(--lime-deep);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.15s ease;
}
a:hover { border-bottom-color: var(--lime-deep); }

/* ------- Site chrome (header + footer) ------- */

.site-header {
  padding: 28px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: var(--content-max);
  margin: 0 auto;
}

.site-header a {
  border: none;
}

.brand {
  font-weight: 900;
  font-size: 22px;
  letter-spacing: -0.02em;
  color: var(--text);
}

.brand .dot {
  color: var(--lime-deep);
}

.nav {
  display: flex;
  gap: 24px;
  font-size: 14px;
  font-weight: 600;
}

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

.site-footer {
  margin-top: 80px;
  padding: 40px 24px;
  border-top: 1px solid var(--border);
  text-align: center;
  font-size: 13px;
  color: var(--text-muted);
}

.site-footer .footer-links {
  display: flex;
  gap: 24px;
  justify-content: center;
  margin-bottom: 16px;
  flex-wrap: wrap;
}

.site-footer a {
  color: var(--text-muted);
}

/* ------- Landing page ------- */

.hero {
  text-align: center;
  padding: 60px 24px 80px;
  max-width: 920px;
  margin: 0 auto;
}

.hero-badge {
  display: inline-block;
  padding: 6px 14px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--lime-deep);
  margin-bottom: 24px;
  text-transform: uppercase;
}

.hero h1 {
  font-size: clamp(40px, 8vw, 72px);
  font-weight: 900;
  letter-spacing: -0.04em;
  line-height: 1.05;
  margin: 0 0 24px;
}

.hero h1 .accent {
  color: var(--lime-deep);
}

.hero .tagline {
  font-size: clamp(18px, 3.5vw, 22px);
  color: var(--text-muted);
  max-width: 600px;
  margin: 0 auto 40px;
}

.hero .cta-row {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 24px;
  border-radius: 999px;
  font-weight: 800;
  font-size: 14px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  border: none;
}

.btn-primary {
  background: var(--lime);
  color: #000;
}
.btn-primary:hover {
  background: var(--lime-deep);
  color: #000;
}

.btn-ghost {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
}
.btn-ghost:hover {
  border-color: var(--lime-deep);
  color: var(--lime-deep);
}

/* Feature grid */

.features {
  max-width: var(--content-max);
  margin: 60px auto 0;
  padding: 0 24px;
}

.features h2 {
  font-size: 32px;
  font-weight: 900;
  letter-spacing: -0.03em;
  text-align: center;
  margin: 0 0 48px;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}

.feature-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 28px;
}

.feature-card .icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: var(--lime);
  color: #000;
  font-size: 22px;
  margin-bottom: 16px;
}

.feature-card h3 {
  font-size: 18px;
  font-weight: 800;
  letter-spacing: -0.01em;
  margin: 0 0 8px;
}

.feature-card p {
  font-size: 15px;
  color: var(--text-muted);
  margin: 0;
  line-height: 1.5;
}

/* ------- Document pages (privacy / terms / support) ------- */

.doc {
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 0 24px 40px;
}

.doc h1 {
  font-size: clamp(32px, 6vw, 48px);
  font-weight: 900;
  letter-spacing: -0.03em;
  line-height: 1.1;
  margin: 24px 0 16px;
}

.doc h2 {
  font-size: 22px;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin: 48px 0 16px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
}

.doc h2:first-of-type {
  border-top: none;
  padding-top: 0;
}

.doc h3 {
  font-size: 17px;
  font-weight: 700;
  margin: 28px 0 8px;
}

.doc p {
  margin: 0 0 16px;
}

.doc ul, .doc ol {
  padding-left: 24px;
  margin: 0 0 16px;
}

.doc li {
  margin-bottom: 6px;
}

.doc .meta {
  font-size: 14px;
  color: var(--text-muted);
  margin-bottom: 32px;
}

.doc table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
  margin: 16px 0 24px;
}

.doc table th,
.doc table td {
  padding: 10px 12px;
  text-align: left;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}

.doc table th {
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  font-size: 12px;
  letter-spacing: 0.05em;
}

.doc strong { font-weight: 700; }

.doc code {
  font-family: ui-monospace, SFMono-Regular, "SF Mono", Menlo, monospace;
  font-size: 0.9em;
  background: var(--surface);
  padding: 2px 6px;
  border-radius: 4px;
}

/* ------- Support page ------- */

.faq {
  margin-top: 32px;
}

.faq details {
  border-bottom: 1px solid var(--border);
  padding: 20px 0;
}

.faq details:first-of-type { border-top: 1px solid var(--border); }

.faq summary {
  font-weight: 700;
  font-size: 17px;
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
}

.faq summary::-webkit-details-marker { display: none; }

.faq summary::after {
  content: "+";
  font-size: 24px;
  font-weight: 400;
  color: var(--lime-deep);
  transition: transform 0.2s ease;
}

.faq details[open] summary::after {
  transform: rotate(45deg);
}

.faq details p {
  margin: 12px 0 0;
  color: var(--text-muted);
}

.contact-card {
  margin-top: 48px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 32px;
  text-align: center;
}

.contact-card h2 {
  border-top: none;
  padding-top: 0;
  margin-top: 0;
}

.contact-card .email {
  font-family: ui-monospace, SFMono-Regular, monospace;
  font-size: 18px;
  color: var(--lime-deep);
  font-weight: 700;
  margin-bottom: 0;
}

/* ------- 404 ------- */

.error-page {
  min-height: 60vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 40px 24px;
}

.error-page h1 {
  font-size: 96px;
  font-weight: 900;
  letter-spacing: -0.05em;
  margin: 0;
  color: var(--lime-deep);
}

.error-page p {
  font-size: 18px;
  color: var(--text-muted);
  margin: 16px 0 32px;
}