/* Crew Scheduler — marketing site. Self-contained, no external fonts or CDNs
   (keeps it CSP-friendly for later). System font stack. Navy + white, squared
   geometry. (Brand mark is the blue grid logo at /site/logo.svg.) */

:root {
  --navy: #1e2b4d;        /* logo navy — primary brand */
  --navy-soft: #2c3e69;   /* lifted navy — hero glow */
  --slate: #3a465f;
  --ink: #1f2a44;
  --muted: #6b7488;
  --line: #e3e7ef;
  --bg: #ffffff;
  --bg-soft: #f5f7fb;
  --brand: #1e2b4d;       /* CTAs + links are navy (monochrome, matches logo) */
  --brand-dark: #16203b;
  --radius: 6px;          /* squared, to echo the logo's geometry */
  --wrap: 1080px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  color: var(--ink);
  background: var(--bg);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica,
    Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji";
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.wrap { width: 100%; max-width: var(--wrap); margin: 0 auto; padding: 0 24px; }
.narrow { max-width: 720px; }
.center { text-align: center; }

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

h1, h2, h3 { line-height: 1.2; color: var(--navy); margin: 0 0 .5em; }
h1 { font-size: clamp(2rem, 5vw, 3.25rem); letter-spacing: -0.02em; }
h2 { font-size: clamp(1.5rem, 3.5vw, 2.25rem); letter-spacing: -0.01em; }
h3 { font-size: 1.15rem; }
p { margin: 0 0 1rem; }

/* ── nav ────────────────────────────────────────────────────────────── */
.nav {
  position: sticky; top: 0; z-index: 10;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: saturate(180%) blur(8px);
  border-bottom: 1px solid var(--line);
}
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: 68px; }
.brand { display: inline-flex; align-items: center; }
.brand:hover { text-decoration: none; }
.brand-logo { height: 52px; width: auto; display: block; }
.nav-links { display: flex; align-items: center; gap: 24px; }
.nav-links a { color: var(--slate); font-weight: 500; }
.nav-links .nav-cta {
  background: var(--brand); color: #fff; padding: 9px 17px;
  border-radius: var(--radius); font-weight: 600;
}
.nav-links .nav-cta:hover { background: var(--brand-dark); text-decoration: none; }
@media (max-width: 620px) { .nav-links a:not(.nav-cta) { display: none; } }

/* ── buttons ────────────────────────────────────────────────────────── */
.btn {
  display: inline-block; font-weight: 600; border-radius: var(--radius);
  padding: 12px 22px; cursor: pointer; border: 1px solid transparent;
  transition: background .15s ease, transform .05s ease; text-align: center;
}
.btn:hover { text-decoration: none; }
.btn:active { transform: translateY(1px); }
.btn-lg { padding: 15px 30px; font-size: 1.05rem; }

/* On light sections: solid navy. */
.btn-primary { background: var(--brand); color: #fff; }
.btn-primary:hover { background: var(--brand-dark); color: #fff; }

/* On the navy hero + demo band: invert to a white button so it reads. */
.hero .btn-primary, .demo .btn-primary { background: #fff; color: var(--navy); }
.hero .btn-primary:hover, .demo .btn-primary:hover { background: #e7ecf6; color: var(--navy); }

.btn-ghost { background: transparent; color: #fff; border-color: rgba(255, 255, 255, .45); }
.btn-ghost:hover { background: rgba(255, 255, 255, .12); color: #fff; }

/* ── hero ───────────────────────────────────────────────────────────── */
.hero {
  background: radial-gradient(1200px 520px at 72% -12%, var(--navy-soft) 0%, var(--navy) 58%);
  color: #d7deec; padding: 96px 0 88px; text-align: center;
}
.hero h1 { color: #fff; margin-bottom: .35em; }
.eyebrow {
  text-transform: uppercase; letter-spacing: .22em; font-size: .8rem;
  font-weight: 700; color: #aeb9d6; margin: 0 0 1rem;
}
.lede { font-size: 1.2rem; color: #c4cde0; max-width: 640px; margin: 0 auto 2rem; }
.hero-cta { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
.credibility { margin-top: 2.25rem; color: #9aa6c2; font-size: .98rem; font-style: italic; }

/* ── sections ───────────────────────────────────────────────────────── */
.section { padding: 72px 0; }
.section:nth-of-type(even) { background: var(--bg-soft); }
.problem p { font-size: 1.12rem; color: var(--slate); }

/* ── cards ──────────────────────────────────────────────────────────── */
.cards {
  display: grid; gap: 20px; margin-top: 2rem;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
}
.card {
  background: #fff; border: 1px solid var(--line); border-top: 3px solid var(--navy);
  border-radius: var(--radius); padding: 24px; box-shadow: 0 1px 2px rgba(30, 43, 77, .05);
}
.card h3 { color: var(--navy); }
.card p { color: var(--muted); margin: 0; }

/* ── demo band ──────────────────────────────────────────────────────── */
.demo { background: var(--navy) !important; color: #c4cde0; }
.demo h2 { color: #fff; }
.demo p { max-width: 620px; margin: 0 auto 1.75rem; color: #c4cde0; }

/* ── contact ────────────────────────────────────────────────────────── */
.contact-form { margin-top: 1.5rem; }
.field { margin-bottom: 16px; display: flex; flex-direction: column; }
.field-row { display: flex; gap: 16px; }
.field-row .field { flex: 1; }
@media (max-width: 520px) { .field-row { flex-direction: column; gap: 0; } }
label { font-weight: 600; margin-bottom: 6px; color: var(--slate); font-size: .95rem; }
.req { color: var(--navy); }
.opt { color: var(--muted); font-weight: 400; font-size: .85rem; }
input {
  font: inherit; padding: 11px 13px; border: 1px solid #c5cdda;
  border-radius: var(--radius); background: #fff; color: var(--ink); width: 100%;
}
input:focus { outline: 2px solid var(--brand); outline-offset: 1px; border-color: var(--brand); }
.form-hint { color: var(--muted); font-size: .9rem; margin: 4px 0 18px; }
.form-note { color: var(--muted); font-size: .85rem; margin-top: 12px; }
.thanks {
  margin-top: 1.5rem; padding: 28px; border: 1px solid var(--line);
  border-radius: var(--radius); background: var(--bg-soft); text-align: center;
}
.thanks h3 { color: var(--navy); }
.thanks p { color: var(--slate); margin: 0; }

/* ── legal pages (terms / privacy placeholders) ─────────────────────── */
.draft-banner {
  background: #fef3c7; border: 1px solid #fde68a; color: #92400e;
  border-radius: var(--radius); padding: 14px 18px; margin: 24px 0 8px;
  font-size: .95rem;
}
.legal { padding: 40px 0 72px; }
.legal h1 { font-size: 2rem; }
.legal h2 { font-size: 1.25rem; margin-top: 1.75rem; }
.legal p, .legal li { color: var(--slate); }
.legal .updated { color: var(--muted); font-size: .9rem; }
.legal .back { display: inline-block; margin-bottom: 8px; }

/* ── footer ─────────────────────────────────────────────────────────── */
.footer { background: var(--navy); color: #9aa6c2; padding: 40px 0; font-size: .92rem; }
.footer-inner { display: flex; flex-direction: column; gap: 14px; }
.footer-disclaimer { max-width: 720px; color: #c4cde0; }
.footer-meta { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; }
.footer a { color: #c4cde0; }
.footer .sep { color: #4a5572; }