/* Bridgix Marine — static site, v03. Headings Space Grotesk, body Plus Jakarta Sans, specs JetBrains Mono; wordmark keeps Michroma. Palette and type follow the logo card: deep navy wordmark, bright blue X and wave, wide letter-spaced caps. */
:root {
  --navy: #0E2340;
  --navy-2: #1B3557;
  --blue: #1E8BE0;
  --blue-d: #1670B8;
  --blue-l: #E7F2FC;
  --ink: #0E2340;
  --text: #3E4E63;
  --muted: #6B7A8F;
  --line: #D9E1EB;
  --bg: #FFFFFF;
  --bg-2: #F5F8FB;
  --radius: 10px;
  --wrap: 1120px;
  --wide: "Michroma", "Space Grotesk", "Segoe UI", Arial, sans-serif; /* wordmark only */
  --head: "Space Grotesk", "Segoe UI", Arial, sans-serif;
  --body: "Plus Jakarta Sans", "Segoe UI", Arial, sans-serif;
  --mono: "JetBrains Mono", Consolas, monospace;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 76px; }
body { margin: 0; background: var(--bg); color: var(--text); font: 16px/1.6 var(--body); -webkit-font-smoothing: antialiased; }
img, svg { max-width: 100%; display: block; }
a { color: var(--blue-d); }
h1, h2, h3 { font-family: var(--head); color: var(--ink); line-height: 1.2; margin: 0 0 .5em; }
h2 { font-size: clamp(1.6rem, 3vw, 2.2rem); font-weight: 700; letter-spacing: -.01em; }
h3 { font-size: 1.05rem; font-weight: 700; }
p { margin: 0 0 1em; }
strong { color: var(--ink); }

.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 24px; }
.eyebrow { font: 600 .78rem/1 var(--head); letter-spacing: .22em; text-transform: uppercase; color: var(--blue); margin-bottom: 14px; }
.section { padding: 96px 0; }
.section.alt { background: var(--bg-2); }
.section-head { max-width: 720px; margin-bottom: 44px; }
.section-head p { font-size: 1.08rem; }

/* Wordmark */
.wordmark { display: inline-flex; flex-direction: column; align-items: center; text-decoration: none; color: var(--navy); }
.wordmark svg.wave { width: 0; min-width: 100%; height: auto; margin-bottom: -.12em; overflow: visible; }
.wordmark .wm-main { font: 400 1em/1 var(--wide); letter-spacing: .06em; }
.wordmark .wm-main b { font-weight: 400; color: var(--blue); }
.wordmark .wm-sub { font: 600 .32em/1 var(--head); letter-spacing: .9em; margin: .55em -.9em 0 0; }

/* Header */
.site-header { position: sticky; top: 0; z-index: 20; background: rgba(255,255,255,.92); backdrop-filter: blur(8px); border-bottom: 1px solid transparent; transition: border-color .2s; }
.site-header.scrolled { border-bottom-color: var(--line); }
.bar { display: flex; align-items: center; justify-content: space-between; height: 68px; }
.site-header .wordmark { font-size: 21px; }
.nav { display: flex; gap: 28px; align-items: center; }
.nav a { font: 600 .82rem/1 var(--head); letter-spacing: .08em; text-transform: uppercase; color: var(--navy); text-decoration: none; }
.nav a:hover { color: var(--blue); }
.nav .nav-cta { padding: 10px 16px; border: 1.5px solid var(--navy); border-radius: 6px; }
.nav .nav-cta:hover { border-color: var(--blue); }
.nav-toggle { display: none; background: none; border: 0; padding: 8px; cursor: pointer; color: var(--navy); }

/* Hero */
.hero { position: relative; padding: 88px 0 72px; text-align: center; overflow: hidden; background: radial-gradient(1200px 500px at 50% -10%, #EEF5FC 0%, #fff 70%); }
.hero .wordmark { font-size: clamp(44px, 9vw, 104px); }
.tagline { margin: 34px 0 0; font: 600 clamp(.7rem, 1.4vw, .9rem)/1.6 var(--head); letter-spacing: .24em; text-transform: uppercase; color: var(--navy-2); }
.tagline span { color: var(--blue); margin: 0 .6em; }
.hero h1 { margin: 56px auto 18px; max-width: 820px; font-size: clamp(1.7rem, 3.6vw, 2.6rem); font-weight: 700; }
.hero .lead { max-width: 760px; margin: 0 auto 32px; font-size: 1.12rem; }
.actions { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }
.btn { display: inline-block; padding: 14px 24px; border-radius: 6px; font: 600 .85rem/1 var(--head); letter-spacing: .08em; text-transform: uppercase; text-decoration: none; transition: background .15s, color .15s, border-color .15s; }
.btn-primary { background: var(--navy); color: #fff; border: 1.5px solid var(--navy); }
.btn-primary:hover { background: var(--blue); border-color: var(--blue); }
.btn-ghost { color: var(--navy); border: 1.5px solid var(--line); }
.btn-ghost:hover { border-color: var(--blue); color: var(--blue); }

/* Cards */
.grid { display: grid; gap: 20px; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 26px; }
.section.alt .card:not(.accent) { background: #fff; }
.card p:last-child { margin-bottom: 0; }
.card .num { font: 500 .8rem/1 var(--mono); color: var(--blue); margin-bottom: 14px; }
.card.feature { border-top: 3px solid var(--blue); }
.card.accent { background: var(--navy); border-color: var(--navy); color: #C9D6E6; }
.card.accent h3, .card.accent strong { color: #fff; }

/* Plain-words tables */
.rows { border-top: 1px solid var(--line); }
.row { display: grid; grid-template-columns: 200px 1fr; gap: 20px; padding: 16px 0; border-bottom: 1px solid var(--line); }
.row dt { font: 700 .95rem/1.4 var(--head); color: var(--ink); }
.row dd { margin: 0; }
.classes { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; margin-top: 16px; }
.cls { border: 1px solid var(--line); border-radius: var(--radius); padding: 20px; background: #fff; position: relative; }
.cls .lvl { font: 400 1.15rem/1 var(--wide); color: var(--navy); margin-bottom: 10px; }
.cls .bars { display: flex; gap: 4px; margin-bottom: 14px; }
.cls .bars i { flex: 1; height: 4px; border-radius: 2px; background: var(--line); }
.cls .bars i.on { background: var(--blue); }
.cls p { font-size: .93rem; margin: 0; }
.note { font-size: .92rem; color: var(--muted); margin-top: 18px; }

/* DP classes table */
.table-wrap { margin-top: 16px; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.cls-table { width: 100%; border-collapse: collapse; font-size: .93rem; }
.cls-table th { text-align: left; font: 600 .72rem/1.3 var(--head); letter-spacing: .12em; text-transform: uppercase; color: var(--muted); background: var(--bg-2); padding: 14px 18px; border-bottom: 1px solid var(--line); }
.cls-table td { padding: 16px 18px; border-bottom: 1px solid var(--line); vertical-align: top; }
.cls-table tr:last-child td { border-bottom: 0; }
.cls-table td:first-child { width: 150px; }
.cls-table .lvl { display: block; font: 700 1.05rem/1 var(--head); color: var(--navy); margin-bottom: 10px; }
.cls-table .lvl small { font: 500 .72rem/1 var(--mono); color: var(--muted); margin-left: 6px; letter-spacing: .02em; }
.cls-table .bars { display: flex; gap: 3px; width: 88px; }
.cls-table .bars i { flex: 1; height: 4px; border-radius: 2px; background: var(--line); }
.cls-table .bars i.on { background: var(--blue); }

/* Protocol chips */
.protocols { margin-top: 28px; display: grid; gap: 14px; }
.proto-group { display: grid; grid-template-columns: 150px 1fr; gap: 16px; align-items: start; }
.proto-label { font: 600 .72rem/2.4 var(--head); letter-spacing: .14em; text-transform: uppercase; color: var(--muted); }
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chips span { font: 500 .8rem/1 var(--mono); color: var(--navy); background: #fff; border: 1px solid var(--line); border-left: 3px solid var(--blue); border-radius: 6px; padding: 8px 11px; transition: border-color .15s, background .15s; }
.chips span:hover { background: var(--blue-l); border-color: var(--blue); }

/* Architecture figure */
.arch { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 18px; overflow-x: auto; }
.arch svg { min-width: 680px; width: 100%; height: auto; }
.arch-cap { font-size: .9rem; color: var(--muted); margin-top: 12px; }
.choices { margin-top: 44px; grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); gap: 16px; }
.choices .card { padding: 20px 22px; }
.choices h3 { font-size: .98rem; margin-bottom: .4em; }
.choices p { font-size: .93rem; }

/* Why it matters */
.compare { display: grid; grid-template-columns: 1fr 1.4fr; gap: 20px; align-items: stretch; }
.compare ul { margin: 0; padding: 0; list-style: none; }
.compare li { padding: 10px 0 10px 28px; position: relative; border-bottom: 1px solid rgba(255,255,255,.12); }
.compare li:last-child { border-bottom: 0; }
.compare .card.accent li::before { content: "×"; position: absolute; left: 4px; top: 8px; color: #7FA6CF; font-weight: 700; }
.compare .card:not(.accent) li { border-bottom-color: var(--line); padding-left: 32px; }
.compare .card:not(.accent) li::before { content: ""; position: absolute; left: 4px; top: 17px; width: 14px; height: 8px; border-left: 2.5px solid var(--blue); border-bottom: 2.5px solid var(--blue); transform: rotate(-45deg); }

/* Audience tabs */
.tabs { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 22px; }
.tab { font: 600 .8rem/1 var(--head); letter-spacing: .06em; text-transform: uppercase; padding: 12px 16px; border-radius: 6px; border: 1.5px solid var(--line); background: #fff; color: var(--navy); cursor: pointer; }
.tab:hover { border-color: var(--blue); }
.tab[aria-selected="true"] { background: var(--navy); border-color: var(--navy); color: #fff; }
.panel { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 32px; }
.panel[hidden] { display: none; }
.panel h3 { font-size: 1.3rem; }
.panel ul { padding-left: 1.2em; margin: 0 0 1em; }
.panel li { margin-bottom: .4em; }
.panel p:last-child { margin-bottom: 0; }

/* Offerings */
.offer { display: flex; gap: 16px; align-items: flex-start; }
.offer .ic { flex: none; width: 40px; height: 40px; border-radius: 8px; background: var(--blue-l); color: var(--blue-d); display: grid; place-items: center; }
.offer .ic svg { width: 22px; height: 22px; }

/* DP2 callout */
.callout { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; background: var(--navy); color: #C9D6E6; border-radius: 14px; padding: 48px; }
.callout h2, .callout strong { color: #fff; }
.callout .eyebrow { color: #6DB6F2; }
.callout ul { margin: 0; padding: 0; list-style: none; }
.callout li { padding: 14px 0; border-bottom: 1px solid rgba(255,255,255,.14); }
.callout li:last-child { border-bottom: 0; }
.callout .tag { display: inline-block; font: 500 .68rem/1 var(--mono); letter-spacing: .14em; text-transform: uppercase; padding: 5px 8px; border-radius: 4px; margin-bottom: 8px; }
.tag.open { background: #1E8BE0; color: #fff; }
.tag.cond { background: transparent; border: 1px solid #6DB6F2; color: #9FD0F7; }
.tag.resp { background: #fff; color: var(--navy); }

/* Status + contact */
.status { display: grid; grid-template-columns: 1.2fr 1fr; gap: 40px; align-items: start; }
.steps { list-style: none; margin: 0; padding: 0; }
.steps li { display: grid; grid-template-columns: 34px 1fr; gap: 14px; padding: 14px 0; border-bottom: 1px solid var(--line); }
.steps .dot { width: 22px; height: 22px; border-radius: 50%; border: 2px solid var(--line); margin-top: 2px; }
.steps .done .dot { background: var(--blue); border-color: var(--blue); }
.steps .now .dot { border-color: var(--blue); box-shadow: inset 0 0 0 4px #fff, inset 0 0 0 11px var(--blue); }
.steps b { display: block; color: var(--ink); font-family: var(--head); }
.contact { text-align: center; padding: 88px 0; background: radial-gradient(900px 400px at 50% 120%, #E7F2FC 0%, #fff 70%); }
.contact .wordmark { font-size: 40px; margin-bottom: 30px; }
.contact p { max-width: 640px; margin: 0 auto 28px; font-size: 1.08rem; }

.site-footer { border-top: 1px solid var(--line); padding: 28px 0; font-size: .85rem; color: var(--muted); }
.site-footer .wrap { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; }

/* Reveal on scroll */
.reveal { opacity: 0; transform: translateY(14px); transition: opacity .6s ease, transform .6s ease; }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { .reveal { opacity: 1; transform: none; transition: none; } html { scroll-behavior: auto; } }

/* Responsive */
@media (max-width: 980px) {
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .classes { grid-template-columns: repeat(2, 1fr); }
  .compare, .callout, .status { grid-template-columns: 1fr; }
}
@media (max-width: 760px) {
  .wrap { padding: 0 16px; }
  .section { padding: 64px 0; }
  .nav { display: none; position: absolute; top: 68px; left: 0; right: 0; flex-direction: column; align-items: stretch; gap: 0; background: #fff; border-bottom: 1px solid var(--line); padding: 8px 16px 16px; }
  .nav.open { display: flex; }
  .nav a { padding: 14px 0; border-bottom: 1px solid var(--line); }
  .nav .nav-cta { border: 0; padding: 14px 0; }
  .nav-toggle { display: block; }
  .site-header .wordmark { font-size: 18px; }
  .hero { padding: 56px 0 56px; }
  .tagline span { margin: 0 .3em; }
  .grid-3, .grid-2, .classes { grid-template-columns: 1fr; }
  .row { grid-template-columns: 1fr; gap: 4px; }
  .proto-group { grid-template-columns: 1fr; gap: 6px; }
  .proto-label { line-height: 1.4; }
  .cls-table thead { display: none; }
  .cls-table, .cls-table tbody, .cls-table tr, .cls-table td { display: block; width: 100%; }
  .cls-table tr { padding: 16px 18px; border-bottom: 1px solid var(--line); }
  .cls-table tr:last-child { border-bottom: 0; }
  .cls-table td { padding: 4px 0; border: 0; }
  .cls-table td:first-child { width: 100%; margin-bottom: 6px; }
  .cls-table td:nth-child(2)::before { content: "Redundancy: "; font-weight: 600; color: var(--ink); }
  .cls-table td:nth-child(3)::before { content: "Single failure: "; font-weight: 600; color: var(--ink); }
  .cls-table td:nth-child(4)::before { content: "Typical vessels: "; font-weight: 600; color: var(--ink); }
  .callout { padding: 32px 22px; }
  .panel { padding: 24px 20px; }
}