/* Sea Service Log — static landing page */

:root {
  --navy-950: #061018;
  --navy-900: #0a1a28;
  --navy-800: #0f2740;
  --navy-700: #163552;
  --teal-500: #0d9488;
  --teal-400: #14b8a6;
  --teal-300: #5eead4;
  --sand-100: #f0f7f6;
  --sand-50: #f7fbfb;
  --ink: #e8f1f0;
  --ink-muted: #a8c0bc;
  --white: #ffffff;
  --radius: 12px;
  --shadow: 0 12px 40px rgba(0, 0, 0, 0.35);
  --font: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --max: 68rem;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font);
  font-size: 1.0625rem;
  line-height: 1.6;
  color: var(--ink);
  background: var(--navy-950);
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
}

a {
  color: var(--teal-300);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.2em;
}

a:hover {
  color: var(--white);
}

a:focus-visible,
.btn:focus-visible {
  outline: 2px solid var(--teal-300);
  outline-offset: 3px;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 100;
  padding: 0.75rem 1rem;
  background: var(--teal-500);
  color: var(--navy-950);
  font-weight: 600;
}

.skip-link:focus {
  left: 1rem;
  top: 1rem;
}

.container {
  width: min(100% - 2rem, var(--max));
  margin-inline: auto;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(6, 16, 24, 0.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(20, 184, 166, 0.15);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 3.75rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  color: var(--white);
  text-decoration: none;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.brand:hover {
  color: var(--teal-300);
}

.brand-mark {
  width: 1.5rem;
  height: 1.5rem;
  border-radius: 50%;
  background:
    radial-gradient(circle at 35% 35%, var(--teal-300), var(--teal-500) 45%, var(--navy-800) 70%),
    linear-gradient(135deg, var(--teal-400), var(--navy-700));
  box-shadow: 0 0 0 2px rgba(20, 184, 166, 0.35);
  flex-shrink: 0;
}

.nav {
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

.nav a {
  color: var(--ink-muted);
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 500;
}

.nav a:hover {
  color: var(--white);
}

.nav-cta {
  padding: 0.4rem 0.9rem;
  border-radius: 999px;
  background: rgba(13, 148, 136, 0.2);
  color: var(--teal-300) !important;
  border: 1px solid rgba(20, 184, 166, 0.4);
}

.nav-cta:hover {
  background: rgba(13, 148, 136, 0.35);
  color: var(--white) !important;
}

/* Hero */
.hero {
  position: relative;
  overflow: hidden;
  padding: clamp(3.5rem, 8vw, 6.5rem) 0 clamp(4rem, 9vw, 7rem);
}

.hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 70% 20%, rgba(13, 148, 136, 0.28), transparent 55%),
    radial-gradient(ellipse 60% 50% at 15% 80%, rgba(22, 53, 82, 0.9), transparent 50%),
    linear-gradient(180deg, var(--navy-900) 0%, var(--navy-950) 100%);
  pointer-events: none;
}

.hero-bg::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 40%;
  background:
    repeating-linear-gradient(
      -8deg,
      transparent,
      transparent 28px,
      rgba(20, 184, 166, 0.04) 28px,
      rgba(20, 184, 166, 0.04) 29px
    );
  opacity: 0.7;
  mask-image: linear-gradient(to top, black, transparent);
}

.hero-inner {
  position: relative;
  max-width: 42rem;
}

.eyebrow {
  display: inline-block;
  margin: 0 0 1rem;
  padding: 0.3rem 0.75rem;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--teal-300);
  background: rgba(13, 148, 136, 0.15);
  border: 1px solid rgba(20, 184, 166, 0.35);
  border-radius: 999px;
}

.hero h1 {
  margin: 0 0 1.25rem;
  font-size: clamp(1.85rem, 4.5vw, 2.75rem);
  line-height: 1.15;
  letter-spacing: -0.03em;
  color: var(--white);
  font-weight: 750;
}

.hero-lead {
  margin: 0 0 2rem;
  font-size: clamp(1.05rem, 2vw, 1.2rem);
  color: var(--ink-muted);
  max-width: 36rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.7rem 1.25rem;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.98rem;
  text-decoration: none;
  border: 1px solid transparent;
  transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}

.btn-primary {
  background: var(--teal-500);
  color: var(--navy-950);
  border-color: var(--teal-400);
}

.btn-primary:hover {
  background: var(--teal-400);
  color: var(--navy-950);
}

.btn-ghost {
  background: transparent;
  color: var(--ink);
  border-color: rgba(168, 192, 188, 0.35);
}

.btn-ghost:hover {
  border-color: var(--teal-400);
  color: var(--white);
  background: rgba(255, 255, 255, 0.04);
}

.btn-large {
  padding: 0.9rem 1.5rem;
  font-size: 1.05rem;
}

/* Benefits */
.benefits {
  padding: clamp(3.5rem, 7vw, 5.5rem) 0;
  background: var(--navy-900);
  border-top: 1px solid rgba(20, 184, 166, 0.12);
}

.benefits h2,
.waitlist h2 {
  margin: 0 0 0.75rem;
  font-size: clamp(1.5rem, 3vw, 2rem);
  letter-spacing: -0.02em;
  color: var(--white);
}

.section-lead {
  margin: 0 0 2.5rem;
  color: var(--ink-muted);
  max-width: 36rem;
}

.benefit-grid {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr));
  gap: 1.25rem;
}

.benefit-card {
  padding: 1.5rem;
  background: linear-gradient(160deg, var(--navy-800), var(--navy-950));
  border: 1px solid rgba(20, 184, 166, 0.18);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.benefit-icon {
  display: block;
  margin-bottom: 0.85rem;
  font-size: 1.25rem;
  color: var(--teal-400);
  line-height: 1;
}

.benefit-card h3 {
  margin: 0 0 0.5rem;
  font-size: 1.1rem;
  color: var(--white);
  letter-spacing: -0.01em;
}

.benefit-card p {
  margin: 0;
  font-size: 0.95rem;
  color: var(--ink-muted);
}

/* Waitlist */
.waitlist {
  padding: clamp(3.5rem, 7vw, 5.5rem) 0;
  background:
    radial-gradient(ellipse 70% 80% at 50% 100%, rgba(13, 148, 136, 0.18), transparent 55%),
    var(--navy-950);
  border-top: 1px solid rgba(20, 184, 166, 0.12);
}

.waitlist-inner {
  max-width: 36rem;
  text-align: center;
  margin-inline: auto;
}

.waitlist-inner .section-lead {
  margin-inline: auto;
}

.waitlist-box {
  padding: 1.75rem 1.5rem;
  background: rgba(15, 39, 64, 0.7);
  border: 1px solid rgba(20, 184, 166, 0.3);
  border-radius: var(--radius);
}

.waitlist-note {
  margin: 0 0 1.25rem;
  color: var(--ink);
}

.waitlist-hint {
  margin: 1rem 0 0;
  font-size: 0.875rem;
  color: var(--ink-muted);
}

/* Footer */
.site-footer {
  padding: 2rem 0;
  border-top: 1px solid rgba(20, 184, 166, 0.12);
  background: var(--navy-950);
}

.footer-inner {
  text-align: center;
}

.footer-brand {
  margin: 0 0 0.35rem;
  font-weight: 700;
  color: var(--white);
  letter-spacing: -0.02em;
}

.footer-copy {
  margin: 0;
  font-size: 0.9rem;
  color: var(--ink-muted);
}

.footer-copy a {
  color: var(--ink-muted);
}

.footer-copy a:hover {
  color: var(--teal-300);
}

@media (max-width: 480px) {
  .nav a:not(.nav-cta) {
    display: none;
  }

  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .btn {
    width: 100%;
  }
}