/* ============================================
   CORAL CUBE CONSTRUCTION — CORE STYLESHEET
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=Oswald:wght@400;500;600;700&family=Work+Sans:wght@300;400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap');

:root {
  /* Color tokens */
  --navy-deep: #0a2540;
  --navy-panel: #0e3a63;
  --navy-light: #15487a;
  --sand: #c5a572;
  --sand-light: #ddc593;
  --white: #ffffff;
  --slate: #9fb3c8;
  --slate-dark: #6e85a0;
  --bg-light: #eef2f6;
  --bg-paper: #f7f9fb;
  --ink: #122436;
  --line-dark: rgba(255,255,255,0.12);
  --line-light: rgba(10,37,64,0.12);

  /* Type */
  --font-display: 'Oswald', sans-serif;
  --font-body: 'Work Sans', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  /* Layout */
  --max-width: 1240px;
  --section-pad: 120px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  background: var(--bg-paper);
  color: var(--ink);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }

a { color: inherit; text-decoration: none; }

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

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: 0.01em;
  line-height: 1.12;
  text-transform: uppercase;
}

h1 { font-size: clamp(2.6rem, 5vw, 4.4rem); }
h2 { font-size: clamp(2rem, 3.4vw, 3rem); }
h3 { font-size: 1.4rem; }
h4 { font-size: 1.05rem; }

p { color: var(--slate-dark); }

.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--sand);
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 18px;
}

.eyebrow::before {
  content: '';
  width: 22px;
  height: 1px;
  background: var(--sand);
  display: inline-block;
}

.section-head { max-width: 640px; margin-bottom: 64px; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.section-head p { margin-top: 18px; font-size: 1.05rem; }
.section-head.light h2 { color: var(--white); }
.section-head.light p { color: var(--slate); }

/* ============ TIDELINE DIVIDER — signature motif ============ */
.tideline {
  position: relative;
  height: 64px;
  overflow: hidden;
  background: var(--bg-paper);
}
.tideline svg { width: 100%; height: 100%; display: block; }
.tideline.on-navy { background: var(--navy-deep); }
.tideline.flip-navy { background: var(--navy-deep); }
.tideline.flip-light { background: var(--bg-paper); }

/* ============ NAV ============ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(10, 37, 64, 0.97);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid var(--line-dark);
}
.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 40px;
  max-width: var(--max-width);
  margin: 0 auto;
}
.logo-mark {
  display: flex;
  align-items: center;
  gap: 12px;
}
.logo-mark img { height: 38px; width: auto; }
.logo-text {
  font-family: var(--font-display);
  color: var(--white);
  font-size: 1.05rem;
  letter-spacing: 0.04em;
  line-height: 1.1;
}
.logo-text span {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.55rem;
  color: var(--sand);
  letter-spacing: 0.2em;
  font-weight: 400;
  text-transform: uppercase;
  margin-top: 2px;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 36px;
}
.nav-links a {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--slate);
  transition: color 0.2s;
  position: relative;
  padding: 6px 0;
  white-space: nowrap;
}
.nav-links a:hover, .nav-links a.active { color: var(--white); }
.nav-links a.active::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0;
  width: 100%; height: 2px;
  background: var(--sand);
}
.nav-links a.nav-cta {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--navy-deep) !important;
  background: var(--sand);
  padding: 13px 26px;
  border-radius: 3px;
  line-height: 1;
  white-space: nowrap;
  transition: background 0.2s, transform 0.2s;
  margin-left: 4px;
  display: inline-block;
}
.nav-links a.nav-cta:hover { background: var(--sand-light); transform: translateY(-1px); }
.nav-links a.nav-cta.active::after { display: none; }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}
.nav-toggle span { width: 24px; height: 2px; background: var(--white); display: block; }

/* ============ BUTTONS ============ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 16px 30px;
  border-radius: 2px;
  transition: all 0.25s ease;
  border: 1px solid transparent;
  cursor: pointer;
}
.btn-primary { background: var(--sand); color: var(--navy-deep); }
.btn-primary:hover { background: var(--sand-light); transform: translateY(-2px); }
.btn-outline {
  border-color: rgba(255,255,255,0.35);
  color: var(--white);
}
.btn-outline:hover { border-color: var(--sand); color: var(--sand); }
.btn-outline-dark {
  border-color: var(--line-light);
  color: var(--ink);
}
.btn-outline-dark:hover { border-color: var(--navy-deep); background: var(--navy-deep); color: var(--white); }
.btn-arrow { transition: transform 0.25s; }
.btn:hover .btn-arrow { transform: translateX(4px); }

/* ============ SECTIONS ============ */
section { position: relative; }
.section-navy { background: var(--navy-deep); color: var(--white); padding: var(--section-pad) 0; }
.section-light { background: var(--bg-paper); padding: var(--section-pad) 0; }
.section-panel { background: var(--navy-panel); color: var(--white); padding: var(--section-pad) 0; }

/* ============ FOOTER ============ */
.site-footer {
  background: var(--navy-deep);
  color: var(--slate);
  padding-top: 80px;
  border-top: 1px solid var(--line-dark);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: 50px;
  padding-bottom: 60px;
}
.footer-grid h4 {
  color: var(--white);
  font-size: 0.85rem;
  letter-spacing: 0.1em;
  margin-bottom: 22px;
}
.footer-grid ul { list-style: none; }
.footer-grid li { margin-bottom: 12px; }
.footer-grid a { font-size: 0.92rem; transition: color 0.2s; }
.footer-grid a:hover { color: var(--sand); }
.footer-about p { font-size: 0.92rem; max-width: 320px; margin-top: 16px; color: var(--slate); }
.footer-logo { display: flex; align-items: center; gap: 12px; }
.footer-logo img { height: 34px; }
.footer-bottom {
  border-top: 1px solid var(--line-dark);
  padding: 24px 0;
  display: flex;
  justify-content: space-between;
  font-size: 0.8rem;
  font-family: var(--font-mono);
  letter-spacing: 0.04em;
  color: var(--slate-dark);
}

/* ============ CARDS / UTILITIES ============ */
.tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 5px 12px;
  border: 1px solid var(--line-light);
  border-radius: 100px;
  color: var(--navy-light);
}
.tag.on-navy { border-color: rgba(255,255,255,0.25); color: var(--sand-light); }

.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}
.reveal.is-visible { opacity: 1; transform: translateY(0); }

.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }

/* Stat blocks */
.stat-block { padding: 36px 30px; background: var(--navy-panel); border: 1px solid var(--line-dark); }
.stat-num { font-family: var(--font-display); font-size: 3rem; color: var(--sand); line-height: 1; }
.stat-label { font-size: 0.85rem; color: var(--slate); margin-top: 10px; text-transform: uppercase; letter-spacing: 0.04em; }

/* Breadcrumb / page header */
.page-hero {
  background: var(--navy-deep);
  padding: 180px 0 90px;
  position: relative;
  overflow: hidden;
}
.page-hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at top right, rgba(197,165,114,0.12), transparent 60%);
  pointer-events: none;
}
.page-hero .eyebrow { margin-bottom: 22px; }
.page-hero h1 { color: var(--white); max-width: 780px; }
.page-hero p.lead { color: var(--slate); max-width: 560px; margin-top: 22px; font-size: 1.1rem; }

/* Scroll-to-top / misc */
::selection { background: var(--sand); color: var(--navy-deep); }

@media (max-width: 980px) {
  .grid-2 { grid-template-columns: 1fr; gap: 40px; }
  .grid-3 { grid-template-columns: 1fr; }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 40px; }
  .nav-links { display: none; }
  .nav-toggle { display: flex; }
  :root { --section-pad: 80px; }
  .container { padding: 0 24px; }
  .page-hero { padding: 140px 0 60px; }
}

@media (max-width: 980px) {
  .nav-links.mobile-open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0; right: 0;
    background: var(--navy-deep);
    padding: 30px 24px;
    gap: 22px;
    border-bottom: 1px solid var(--line-dark);
  }
}

@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
}