/* Reef Tectonics — public site v2 (2026) */
:root {
  --navy-950: #06121d;
  --navy-900: #081826;
  --navy-800: #0c2135;
  --navy-700: #123049;
  --aqua: #3fd0c9;
  --aqua-bright: #5ce8e1;
  --aqua-dark: #17948d;
  --sand: #f4f7f8;
  --ink: #1c2b36;
  --ink-soft: #46596a;
  --line: #dde6ea;
  --maxw: 1120px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: "Segoe UI", system-ui, -apple-system, "Helvetica Neue", Arial, sans-serif;
  color: var(--ink);
  background: #fff;
  line-height: 1.65;
  font-size: 17px;
}
img { max-width: 100%; display: block; }
a { color: var(--aqua-dark); }
.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }

/* ---------- header / nav ---------- */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(8, 24, 38, .96);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid rgba(63, 208, 201, .25);
}
.nav-bar {
  max-width: var(--maxw); margin: 0 auto; padding: 0 24px;
  display: flex; align-items: center; justify-content: space-between;
  min-height: 64px;
}
.brand { display: flex; align-items: baseline; gap: 8px; text-decoration: none; }
.brand .reef {
  font-size: 1.5rem; font-weight: 800; letter-spacing: .02em; color: var(--aqua);
}
.brand .tectonics {
  font-size: 1.5rem; font-weight: 300; letter-spacing: .14em; color: #fff;
}
.v2-badge {
  background: var(--aqua); color: var(--navy-950);
  font-size: .6rem; font-weight: 800; letter-spacing: .08em;
  padding: 2px 8px; border-radius: 999px; margin-left: 8px;
  vertical-align: 6px;
}
.hero-pill {
  display: inline-block; margin: 0 0 18px; padding: 8px 18px;
  border: 1px solid rgba(63, 208, 201, .45); border-radius: 999px;
  background: rgba(63, 208, 201, .08); color: #b9cdd9; font-size: .92rem;
}
.hero-pill strong { color: var(--aqua); }
.brand .tag { display: none; }
@media (min-width: 900px) {
  .brand .tag {
    display: inline; color: #8fa8ba; font-size: .8rem; font-weight: 400;
    letter-spacing: .05em; margin-left: 10px;
  }
}
.nav-links { display: flex; gap: 4px; list-style: none; margin: 0; padding: 0; }
.nav-links a {
  display: block; padding: 20px 14px; color: #cfe0e8; text-decoration: none;
  font-size: .95rem; font-weight: 600; letter-spacing: .04em;
  border-bottom: 3px solid transparent;
}
.nav-links a:hover { color: var(--aqua-bright); }
.nav-links a.active { color: var(--aqua); border-bottom-color: var(--aqua); }
.nav-login {
  background: var(--aqua); color: var(--navy-950) !important;
  font-weight: 800; font-size: .85rem; letter-spacing: .03em;
  padding: 9px 18px; border-radius: 999px; text-decoration: none;
  margin-left: 12px; white-space: nowrap; align-self: center;
}
.nav-login:hover { background: var(--aqua-bright); }
.page-head.photo { background-size: cover; background-position: center; }
.page-head.photo .page-head-inner { padding: 72px 24px; }
.nav-toggle {
  display: none; background: none; border: 0; color: var(--aqua);
  font-size: 1.7rem; cursor: pointer; padding: 8px 12px; line-height: 1;
}
@media (max-width: 820px) {
  .nav-toggle { display: block; }
  .nav-links {
    display: none; position: absolute; top: 100%; left: 0; right: 0;
    flex-direction: column; gap: 0; background: var(--navy-900);
    border-bottom: 1px solid rgba(63, 208, 201, .25);
  }
  .nav-links.open { display: flex; }
  .nav-links a { padding: 14px 24px; border-bottom: 0; border-left: 3px solid transparent; }
  .nav-links a.active { border-left-color: var(--aqua); }
}

/* ---------- hero ---------- */
.hero {
  background: radial-gradient(ellipse at 75% 40%, var(--navy-700) 0%, var(--navy-900) 55%, var(--navy-950) 100%);
  color: #fff; overflow: hidden;
}
.hero-inner {
  max-width: var(--maxw); margin: 0 auto; padding: 64px 24px;
  display: grid; grid-template-columns: 1.1fr .9fr; gap: 40px; align-items: center;
}
.hero h1 {
  font-size: clamp(1.9rem, 4vw, 2.9rem); line-height: 1.15;
  margin: 0 0 18px; font-weight: 800;
}
.hero h1 .accent { color: var(--aqua); }
.hero p.lede { color: #b9cdd9; font-size: 1.12rem; margin: 0 0 30px; max-width: 34em; }
.hero-img { position: relative; }
.hero-img img {
  width: 100%;
  height: auto; /* keep the photo's true aspect ratio at every width */
  border-radius: 14px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, .5);
}
.hero-img figcaption { color: #6d8698; font-size: .78rem; margin-top: 10px; text-align: right; }
@media (max-width: 820px) {
  .hero-inner { grid-template-columns: 1fr; padding: 44px 24px; }
}

.btn-row { display: flex; gap: 14px; flex-wrap: wrap; }
.btn {
  display: inline-block; padding: 13px 26px; border-radius: 8px;
  font-weight: 700; text-decoration: none; font-size: 1rem; letter-spacing: .02em;
}
.btn-primary { background: var(--aqua); color: var(--navy-950); }
.btn-primary:hover { background: var(--aqua-bright); }
.btn-ghost { border: 2px solid rgba(63, 208, 201, .55); color: var(--aqua); }
.btn-ghost:hover { border-color: var(--aqua-bright); color: var(--aqua-bright); }
.btn-dark { background: var(--navy-800); color: #fff; }
.btn-dark:hover { background: var(--navy-700); }

/* ---------- stat band ---------- */
.stats {
  background: var(--navy-950); color: #fff;
  border-top: 1px solid rgba(63, 208, 201, .18);
}
.stats-inner {
  max-width: var(--maxw); margin: 0 auto; padding: 26px 24px;
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; text-align: center;
}
.stat .num { font-size: 1.7rem; font-weight: 800; color: var(--aqua); }
.stat .lbl { color: #93aab9; font-size: .9rem; letter-spacing: .04em; }
@media (max-width: 640px) { .stats-inner { grid-template-columns: 1fr; gap: 10px; } }

/* ---------- sections ---------- */
.section { padding: 64px 0; }
.section.alt { background: var(--sand); }
.section h2 {
  font-size: clamp(1.5rem, 3vw, 2.1rem); margin: 0 0 8px; font-weight: 800; color: var(--navy-800);
}
.section .kicker {
  color: var(--aqua-dark); text-transform: uppercase; letter-spacing: .16em;
  font-size: .8rem; font-weight: 700; margin: 0 0 6px;
}
.section .sub { color: var(--ink-soft); max-width: 46em; margin: 0 0 36px; }

/* cards */
.card-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
@media (max-width: 900px) { .card-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 600px) { .card-grid { grid-template-columns: 1fr; } }
.card {
  background: #fff; border: 1px solid var(--line); border-radius: 12px;
  padding: 26px 24px; box-shadow: 0 2px 10px rgba(12, 33, 53, .05);
}
.card .icon { font-size: 1.9rem; margin-bottom: 10px; }
.card h3 { margin: 0 0 8px; font-size: 1.12rem; color: var(--navy-800); }
.card p { margin: 0; color: var(--ink-soft); font-size: .96rem; }

/* testimonials */
.quote-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }
@media (max-width: 820px) { .quote-grid { grid-template-columns: 1fr; } }
.quote {
  background: var(--navy-800); color: #dcebf2; border-radius: 12px; padding: 28px;
  position: relative;
}
.quote::before {
  content: "\201C"; position: absolute; top: 6px; left: 18px;
  font-size: 4rem; color: var(--aqua); opacity: .35; font-family: Georgia, serif;
}
.quote p { margin: 0 0 14px; font-size: .98rem; }
.quote cite { color: var(--aqua); font-style: normal; font-weight: 700; font-size: .9rem; }
.quote cite span { display: block; color: #8fa8ba; font-weight: 400; }

/* gallery strip on home */
.strip { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
@media (max-width: 820px) { .strip { grid-template-columns: repeat(2, 1fr); } }
.strip a { display: block; border-radius: 10px; overflow: hidden; }
.strip img { height: 170px; width: 100%; object-fit: cover; transition: transform .3s; }
.strip a:hover img { transform: scale(1.05); }

/* CTA band */
.cta-band { background: linear-gradient(120deg, var(--navy-800), var(--navy-950)); color: #fff; }
.cta-inner {
  max-width: var(--maxw); margin: 0 auto; padding: 54px 24px;
  display: flex; align-items: center; justify-content: space-between; gap: 28px; flex-wrap: wrap;
}
.cta-inner h2 { margin: 0 0 6px; font-size: 1.6rem; }
.cta-inner p { margin: 0; color: #b9cdd9; }

/* ---------- gallery page ---------- */
.filter-row { display: flex; gap: 10px; margin-bottom: 26px; flex-wrap: wrap; }
.filter-btn {
  background: #fff; border: 1.5px solid var(--line); color: var(--ink-soft);
  padding: 9px 20px; border-radius: 999px; font-weight: 600; cursor: pointer; font-size: .95rem;
}
.filter-btn.active { background: var(--navy-800); border-color: var(--navy-800); color: var(--aqua); }
.gal-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
@media (max-width: 900px) { .gal-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .gal-grid { grid-template-columns: 1fr; } }
.gal-grid a { display: block; border-radius: 10px; overflow: hidden; background: var(--navy-950); }
.gal-grid img { width: 100%; height: 240px; object-fit: cover; transition: transform .3s, opacity .3s; }
.gal-grid a:hover img { transform: scale(1.04); opacity: .92; }

/* lightbox */
.lightbox {
  position: fixed; inset: 0; z-index: 200; background: rgba(4, 12, 20, .93);
  display: none; align-items: center; justify-content: center; padding: 30px;
}
.lightbox.open { display: flex; }
.lightbox img {
  max-width: min(1100px, 92vw); max-height: 86vh; width: auto;
  border-radius: 8px; box-shadow: 0 20px 80px rgba(0, 0, 0, .8);
}
.lb-btn {
  position: absolute; background: rgba(12, 33, 53, .8); color: var(--aqua);
  border: 1px solid rgba(63, 208, 201, .4); border-radius: 50%;
  width: 48px; height: 48px; font-size: 1.3rem; cursor: pointer;
}
.lb-close { top: 22px; right: 22px; }
.lb-prev { left: 22px; top: 50%; transform: translateY(-50%); }
.lb-next { right: 22px; top: 50%; transform: translateY(-50%); }

/* ---------- content pages ---------- */
.page-head { background: var(--navy-900); color: #fff; }
.page-head-inner { max-width: var(--maxw); margin: 0 auto; padding: 46px 24px; }
.page-head h1 { margin: 0 0 6px; font-size: clamp(1.7rem, 3.5vw, 2.4rem); font-weight: 800; }
.page-head p { margin: 0; color: #9db4c4; max-width: 46em; }

.prose { max-width: 46em; }
.prose h3 { color: var(--navy-800); margin: 34px 0 8px; }
.prose p { color: var(--ink-soft); }

.svc { display: grid; grid-template-columns: 64px 1fr; gap: 20px; margin-bottom: 34px; }
.svc .icon { font-size: 2rem; text-align: center; padding-top: 2px; }
.svc h3 { margin: 0 0 6px; color: var(--navy-800); }
.svc p { margin: 0; color: var(--ink-soft); }

/* contact */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; }
@media (max-width: 820px) { .contact-grid { grid-template-columns: 1fr; } }
.contact-card {
  background: var(--navy-800); color: #dcebf2; border-radius: 14px; padding: 34px;
}
.contact-card h3 { color: #fff; margin: 0 0 18px; }
.contact-card .row { display: flex; gap: 14px; margin-bottom: 16px; align-items: baseline; }
.contact-card .row .ico { width: 26px; text-align: center; }
.contact-card a { color: var(--aqua); text-decoration: none; font-weight: 600; }
.contact-card a:hover { color: var(--aqua-bright); }
.contact-card .big { font-size: 1.35rem; }

/* education */
.pub-list { display: grid; gap: 18px; max-width: 52em; }
.pub {
  display: grid; grid-template-columns: 54px 1fr; gap: 18px;
  background: #fff; border: 1px solid var(--line); border-radius: 12px; padding: 22px;
}
.pub .icon { font-size: 1.8rem; text-align: center; }
.pub h3 { margin: 0 0 4px; font-size: 1.08rem; }
.pub h3 a { color: var(--navy-800); text-decoration: none; }
.pub h3 a:hover { color: var(--aqua-dark); }
.pub p { margin: 0; color: var(--ink-soft); font-size: .95rem; }

/* ---------- footer ---------- */
.site-footer { background: var(--navy-950); color: #8fa8ba; font-size: .92rem; }
.footer-inner {
  max-width: var(--maxw); margin: 0 auto; padding: 44px 24px 30px;
  display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 34px;
}
@media (max-width: 820px) { .footer-inner { grid-template-columns: 1fr; gap: 22px; } }
.site-footer h4 { color: #fff; margin: 0 0 10px; font-size: .95rem; letter-spacing: .06em; }
.site-footer a { color: #b9cdd9; text-decoration: none; }
.site-footer a:hover { color: var(--aqua); }
.site-footer ul { list-style: none; margin: 0; padding: 0; }
.site-footer li { margin-bottom: 7px; }
.footer-brand .reef { font-weight: 800; color: var(--aqua); font-size: 1.2rem; }
.footer-brand .tectonics { font-weight: 300; letter-spacing: .14em; color: #fff; font-size: 1.2rem; }
.footer-bottom {
  border-top: 1px solid rgba(143, 168, 186, .15);
  padding: 18px 24px; text-align: center; font-size: .84rem; color: #6d8698;
}
.time-machine {
  display: inline-block; margin-top: 8px; padding: 8px 16px; border-radius: 999px;
  border: 1px dashed rgba(63, 208, 201, .5); color: var(--aqua) !important; font-size: .88rem;
}
.time-machine:hover { border-style: solid; }
.social-row { display: flex; gap: 14px; margin-top: 16px; }
.social-row a { color: #8fa8ba; }
.social-row a:hover { color: var(--aqua); }