/* Inboxd marketing — neumorphic dark, monochrome */
:root {
  --bg: #1d1e23;
  --shadow-dark: #14151a;
  --shadow-light: #2a2c34;
  --text: #d4d6dc;
  --text-dim: #8a8d97;
  --text-faint: #5b5e67;
  --radius: 14px;
  --radius-lg: 22px;
  --r-shadow: 7px 7px 14px var(--shadow-dark), -7px -7px 14px var(--shadow-light);
  --r-shadow-sm: 4px 4px 8px var(--shadow-dark), -4px -4px 8px var(--shadow-light);
  --s-shadow: inset 5px 5px 10px var(--shadow-dark), inset -5px -5px 10px var(--shadow-light);
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; background: var(--bg); color: var(--text); font-family: -apple-system, BlinkMacSystemFont, "Inter", "Segoe UI", Roboto, sans-serif; -webkit-font-smoothing: antialiased; line-height: 1.55; }
a { color: var(--text); text-decoration: none; }
a:hover { color: var(--text); }
.mono { font-family: ui-monospace, "SF Mono", Menlo, monospace; color: var(--text-dim); }

.nav { display: flex; justify-content: space-between; align-items: center; padding: 22px 32px; max-width: 1100px; margin: 0 auto; }
.brand { font-size: 22px; font-weight: 800; letter-spacing: -0.5px; display: inline-flex; align-items: center; gap: 10px; }
.brand-icon { width: 32px; height: 32px; border-radius: 8px; }
.nav-right { display: flex; align-items: center; gap: 18px; }
.nav-link { color: var(--text-dim); font-size: 14px; font-weight: 500; }
.nav-link:hover { color: var(--text); }

.btn { display: inline-block; background: var(--bg); color: var(--text); border-radius: var(--radius); padding: 11px 22px; font-size: 14px; font-weight: 700; letter-spacing: 0.4px; box-shadow: var(--r-shadow-sm); transition: box-shadow 0.15s ease, color 0.15s ease; cursor: pointer; }
.btn:hover { color: var(--text); }
.btn:active { box-shadow: var(--s-shadow); }
.btn-primary { color: var(--text); }
.btn-lg { padding: 16px 32px; font-size: 15px; box-shadow: var(--r-shadow); }

main { max-width: 1100px; margin: 0 auto; padding: 0 32px; }

.hero { padding: 72px 0 80px; text-align: center; }
.hero h1 { font-size: clamp(36px, 6vw, 64px); line-height: 1.05; margin: 0 0 24px; letter-spacing: -1.5px; font-weight: 800; }
.hero .lede { font-size: clamp(16px, 2vw, 19px); color: var(--text-dim); max-width: 640px; margin: 0 auto 36px; }
.hero-cta { display: flex; flex-direction: column; align-items: center; gap: 10px; }
.hero-sub { color: var(--text-faint); font-size: 12px; letter-spacing: 0.3px; }

.email-mock { margin-top: 56px; display: flex; justify-content: center; }
.mock-pill { background: var(--bg); border-radius: 100px; padding: 18px 32px; box-shadow: var(--s-shadow); font-family: ui-monospace, "SF Mono", Menlo, monospace; font-size: 18px; color: var(--text); letter-spacing: 0.5px; }
.mock-pill .mock-faint { color: var(--text-faint); }

.features { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 22px; padding: 40px 0 80px; }
.feature { background: var(--bg); border-radius: var(--radius-lg); padding: 32px 28px; box-shadow: var(--r-shadow); }
.feature-icon { font-size: 24px; color: var(--text-dim); margin-bottom: 14px; }
.feature h3 { margin: 0 0 8px; font-size: 16px; font-weight: 700; }
.feature p { margin: 0; color: var(--text-dim); font-size: 13.5px; line-height: 1.6; }

.cta { background: var(--bg); border-radius: var(--radius-lg); padding: 64px 32px; text-align: center; box-shadow: var(--s-shadow); margin-bottom: 80px; }
.cta h2 { margin: 0 0 24px; font-size: clamp(22px, 3vw, 32px); font-weight: 700; letter-spacing: -0.5px; }

footer { padding: 32px 32px 48px; max-width: 1100px; margin: 0 auto; text-align: center; color: var(--text-faint); font-size: 12px; }
footer a { color: var(--text-faint); }
footer a:hover { color: var(--text-dim); }
.spacer { margin: 0 10px; }

@media (max-width: 600px) {
  .nav { padding: 16px 20px; }
  .nav-right .nav-link { display: none; }
  main { padding: 0 20px; }
  .hero { padding: 40px 0 60px; }
}