/* Estuaric — where expertise meets execution
   Palette: deep brackish ink, tidal teal, delta sand */
:root {
  --bg: #061216;
  --bg-2: #0a1b21;
  --bg-3: #0f252c;
  --panel: rgba(255, 255, 255, 0.025);
  --line: rgba(143, 214, 203, 0.14);
  --line-2: rgba(143, 214, 203, 0.28);
  --teal: #5fd4c0;
  --teal-2: #9be6d9;
  --sand: #e3c78f;
  --text: #e6eeed;
  --muted: #8ea4a7;
  --serif: "Instrument Serif", "Iowan Old Style", Georgia, serif;
  --sans: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: "JetBrains Mono", ui-monospace, "SF Mono", Menlo, monospace;
  --max: 1240px;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--text); font: 16px/1.65 var(--sans); -webkit-font-smoothing: antialiased; }
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; }
::selection { background: var(--teal); color: var(--bg); }
.wrap { width: 100%; max-width: var(--max); margin: 0 auto; padding: 0 28px; }
@media (max-width: 600px) { .wrap { padding: 0 16px; } }
.skip { position: absolute; left: -999px; top: 8px; background: var(--teal); color: var(--bg); padding: 8px 14px; z-index: 100; }
.skip:focus { left: 8px; }

h1, h2, h3 { font-family: var(--serif); font-weight: 400; line-height: 1.02; margin: 0; letter-spacing: -0.01em; }
h1 { font-size: clamp(3rem, 7.4vw, 6.6rem); }
h2 { font-size: clamp(2.3rem, 4.6vw, 3.9rem); }
h3 { font-size: 1.9rem; }
h1 em, h2 em { color: var(--teal-2); }
p { margin: 0 0 1em; }
.label { font: 500 0.72rem/1.2 var(--mono); letter-spacing: 0.14em; text-transform: uppercase; color: var(--teal); display: inline-flex; align-items: center; gap: 10px; }
.label .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--teal); box-shadow: 0 0 0 4px rgba(95,212,192,.15); animation: pulse 2.4s ease-in-out infinite; }
@keyframes pulse { 50% { box-shadow: 0 0 0 8px rgba(95,212,192,0); } }
.lead { font-size: 1.15rem; color: var(--muted); max-width: 58ch; }

.btn { display: inline-flex; align-items: center; gap: 10px; padding: 14px 22px; border-radius: 999px; font: 500 0.92rem/1 var(--sans); text-decoration: none; border: 1px solid transparent; transition: background .2s, border-color .2s, color .2s, transform .2s; cursor: pointer; }
.btn-primary { background: var(--teal); color: #03201b; }
.btn-primary:hover { background: var(--teal-2); }
.btn-line { border-color: var(--line-2); color: var(--text); }
.btn-line:hover { border-color: var(--teal); color: var(--teal-2); }
.btn .arr { transition: transform .2s; }
.btn:hover .arr { transform: translateX(3px); }

/* Header */
.hdr { position: sticky; top: 0; z-index: 50; background: rgba(6, 18, 22, 0.78); backdrop-filter: blur(14px) saturate(140%); -webkit-backdrop-filter: blur(14px) saturate(140%); border-bottom: 1px solid var(--line); }
.hdr .wrap { display: flex; align-items: center; justify-content: space-between; height: 72px; gap: 24px; }
.logo { display: flex; align-items: center; gap: 12px; text-decoration: none; }
.logo svg { width: 34px; height: 34px; }
.logo b { font-family: var(--serif); font-weight: 400; font-size: 1.7rem; letter-spacing: .01em; }
.menu { display: flex; align-items: center; gap: 30px; list-style: none; margin: 0; padding: 0; }
.menu a { text-decoration: none; font-size: .9rem; color: var(--muted); transition: color .2s; }
.menu a:hover { color: var(--text); }
.menu .btn { color: #03201b; padding: 11px 18px; }
.burger { display: none; width: 44px; height: 44px; border: 1px solid var(--line-2); border-radius: 50%; background: none; color: var(--text); cursor: pointer; }
.burger span { display: block; width: 16px; height: 1px; background: currentColor; margin: 4px auto; transition: transform .3s, opacity .3s; }
@media (max-width: 920px) {
  .burger { display: block; }
  .menu { position: fixed; inset: 72px 0 auto 0; flex-direction: column; align-items: stretch; gap: 0; background: var(--bg); border-bottom: 1px solid var(--line); padding: 8px 16px 20px; transform: translateY(-130%); transition: transform .35s; z-index: -1; }
  .menu a { display: block; padding: 14px 4px; border-bottom: 1px solid var(--line); }
  .menu .btn { justify-content: center; margin-top: 14px; border-bottom: 0; }
  .open .menu { transform: none; }
  .open .burger span:nth-child(1) { transform: translateY(5px) rotate(45deg); }
  .open .burger span:nth-child(2) { opacity: 0; }
  .open .burger span:nth-child(3) { transform: translateY(-5px) rotate(-45deg); }
}

/* Hero */
.hero { position: relative; overflow: hidden; padding: 120px 0 80px; border-bottom: 1px solid var(--line); }
.hero-photo { position: absolute; inset: 0 0 0 30%; }
.hero-photo img { width: 100%; height: 100%; object-fit: cover; object-position: center 40%; opacity: .26; filter: grayscale(.55) contrast(1.05) brightness(.9); mix-blend-mode: luminosity; -webkit-mask-image: linear-gradient(90deg, transparent 0%, #000 45%, #000 80%, transparent 100%); mask-image: linear-gradient(90deg, transparent 0%, #000 45%, #000 80%, transparent 100%); }
.hero-photo::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(6,18,22,.1), rgba(6,18,22,.85)); -webkit-mask-image: linear-gradient(90deg, transparent, #000 45%); mask-image: linear-gradient(90deg, transparent, #000 45%); }
.hero canvas { position: absolute; inset: 0; width: 100%; height: 100%; opacity: .9; }
.hero::after { content: ""; position: absolute; inset: 0; background: radial-gradient(900px 520px at 20% 40%, rgba(6,18,22,.92), rgba(6,18,22,.35) 70%, transparent); pointer-events: none; }
.hero .wrap { position: relative; z-index: 1; }
.hero h1 { margin: 26px 0 28px; max-width: 12ch; }
.hero .lead { font-size: 1.22rem; color: #b3c4c6; }
.hero .cta { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 36px; }
.coords { display: flex; gap: 28px; flex-wrap: wrap; margin-top: 90px; font: .74rem/1.4 var(--mono); color: var(--muted); letter-spacing: .06em; }
.coords span b { color: var(--text); font-weight: 500; }
@media (max-width: 700px) { .hero { padding: 72px 0 56px; } .coords { margin-top: 56px; gap: 14px 22px; } }

/* Principles */
.principles-band { border-bottom: 1px solid var(--line); }
.principles { display: grid; grid-template-columns: repeat(4, 1fr); }
.principles div { padding: 34px 28px 36px; border-left: 1px solid var(--line); }
.principles div:first-child { border-left: 0; padding-left: 0; }
.principles .k { font: .7rem var(--mono); color: var(--teal); letter-spacing: .12em; }
.principles h4 { font-family: var(--serif); font-weight: 400; font-size: 1.55rem; margin: 12px 0 8px; line-height: 1.1; }
.principles p { color: var(--muted); font-size: .92rem; margin: 0; }
@media (max-width: 960px) { .principles { grid-template-columns: 1fr 1fr; } .principles div:nth-child(3) { border-left: 0; padding-left: 0; } .principles div:nth-child(n+3) { border-top: 1px solid var(--line); } }
@media (max-width: 560px) { .principles { grid-template-columns: 1fr; } .principles div { border-left: 0; padding: 26px 0; } .principles div + div { border-top: 1px solid var(--line); } }

/* Sections */
section { scroll-margin-top: 72px; }
.sec { padding: 128px 0; border-bottom: 1px solid var(--line); }
.sec-alt { background: var(--bg-2); }
.head { display: grid; grid-template-columns: 1.1fr .9fr; gap: 48px; align-items: end; margin-bottom: 64px; }
.head h2 { margin-top: 18px; }
.head .lead { margin: 0; }
@media (max-width: 880px) { .sec { padding: 84px 0; } .head { grid-template-columns: 1fr; gap: 20px; margin-bottom: 44px; } }

/* Capabilities */
.caps { display: grid; grid-template-columns: 1fr 1fr; gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: 18px; overflow: hidden; }
.cap { background: var(--bg); padding: 44px 40px; position: relative; transition: background .3s; }
.cap:hover { background: var(--bg-3); }
.cap .n { font: .74rem var(--mono); color: var(--teal); letter-spacing: .1em; }
.cap h3 { margin: 18px 0 14px; }
.cap > p { color: var(--muted); margin-bottom: 24px; }
.cap ul { list-style: none; padding: 0; margin: 0; display: flex; flex-wrap: wrap; gap: 8px; }
.cap li { font: .76rem var(--mono); color: var(--teal-2); border: 1px solid var(--line-2); border-radius: 999px; padding: 6px 12px; }
.cap svg.ico { position: absolute; top: 40px; right: 40px; width: 42px; height: 42px; color: var(--teal); opacity: .7; }
@media (max-width: 860px) { .caps { grid-template-columns: 1fr; } .cap { padding: 34px 22px; } .cap svg.ico { top: 30px; right: 22px; } }

/* Model */
.model { display: grid; grid-template-columns: .95fr 1.05fr; gap: 64px; align-items: start; }
.phases { list-style: none; margin: 0; padding: 0; position: relative; }
.phases::before { content: ""; position: absolute; left: 17px; top: 10px; bottom: 10px; width: 1px; background: linear-gradient(var(--teal), var(--line)); }
.phases li { position: relative; padding: 0 0 38px 58px; }
.phases li::before { content: attr(data-n); position: absolute; left: 0; top: 0; width: 35px; height: 35px; border-radius: 50%; border: 1px solid var(--teal); background: var(--bg-2); display: grid; place-items: center; font: .72rem var(--mono); color: var(--teal); }
.phases h4 { font-family: var(--serif); font-weight: 400; font-size: 1.7rem; margin: 0 0 6px; line-height: 1.1; }
.phases .when { font: .7rem var(--mono); color: var(--sand); letter-spacing: .1em; text-transform: uppercase; }
.phases p { color: var(--muted); margin: 8px 0 0; }

.console { border: 1px solid var(--line-2); border-radius: 16px; background: #041014; overflow: hidden; box-shadow: 0 40px 80px -30px rgba(0,0,0,.6); position: sticky; top: 100px; }
.console .bar { display: flex; align-items: center; gap: 8px; padding: 12px 16px; border-bottom: 1px solid var(--line); font: .72rem var(--mono); color: var(--muted); }
.console .bar i { width: 9px; height: 9px; border-radius: 50%; background: var(--line-2); display: inline-block; }
.console .bar span { margin-left: 8px; }
.console .bar em { margin-left: auto; font-style: normal; color: var(--sand); }
.console pre { margin: 0; padding: 22px 20px 26px; font: .8rem/1.9 var(--mono); color: #b9cacc; white-space: pre-wrap; overflow-wrap: anywhere; }
.console .t { color: var(--muted); }
.console .ok { color: var(--teal); }
.console .s { color: var(--sand); }
.console .caret { display: inline-block; width: 8px; height: 1em; background: var(--teal); vertical-align: -2px; animation: blink 1s steps(1) infinite; }
@keyframes blink { 50% { opacity: 0; } }
@media (max-width: 960px) { .model { grid-template-columns: 1fr; } .console { position: relative; top: 0; } }

/* Base (Tallinn) */
.base-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: 72px; align-items: center; }
.facts { display: grid; grid-template-columns: 1fr 1fr; gap: 0 28px; margin: 34px 0 0; }
.facts div { padding: 14px 0; border-top: 1px solid var(--line); }
.facts dt { font: .68rem var(--mono); color: var(--teal); letter-spacing: .1em; text-transform: uppercase; }
.facts dd { margin: 2px 0 0; font-size: .95rem; color: #c5d3d4; }
.window { position: relative; margin: 0; border-radius: 6px; overflow: hidden; border: 10px solid #0d2127; outline: 1px solid var(--line-2); box-shadow: 0 50px 90px -40px rgba(0,0,0,.8), inset 0 0 0 1px rgba(255,255,255,.04); aspect-ratio: 16 / 10; background: #0d2127; }
.window img { width: 100%; height: 100%; object-fit: cover; object-position: center 55%; opacity: .78; filter: saturate(.8) contrast(1.05); }
.window::before { content: ""; position: absolute; inset: 0; z-index: 1; pointer-events: none; background: linear-gradient(115deg, rgba(255,255,255,.10) 0%, rgba(255,255,255,0) 28%, rgba(255,255,255,0) 60%, rgba(255,255,255,.05) 72%, rgba(255,255,255,0) 80%), linear-gradient(180deg, rgba(6,18,22,0) 55%, rgba(6,18,22,.55)); }
.window .mullions { position: absolute; inset: 0; z-index: 2; pointer-events: none; background: linear-gradient(90deg, transparent calc(50% - 5px), #0d2127 calc(50% - 5px), #0d2127 calc(50% + 5px), transparent calc(50% + 5px)), linear-gradient(180deg, transparent calc(38% - 4px), #0d2127 calc(38% - 4px), #0d2127 calc(38% + 4px), transparent calc(38% + 4px)); }
.window figcaption { position: absolute; z-index: 3; left: 18px; bottom: 16px; font: .7rem var(--mono); color: var(--teal-2); letter-spacing: .06em; background: rgba(6,18,22,.7); padding: 6px 10px; border-radius: 999px; }
@media (max-width: 900px) { .base-grid { grid-template-columns: 1fr; gap: 44px; } }
@media (max-width: 520px) { .facts { grid-template-columns: 1fr; } .window { border-width: 6px; } }

/* Experts */
.fields { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.field { border: 1px solid var(--line); border-radius: 14px; padding: 26px 22px; background: var(--panel); transition: border-color .25s, transform .25s; }
.field:hover { border-color: var(--line-2); transform: translateY(-2px); }
.field .k { font: .68rem var(--mono); color: var(--teal); letter-spacing: .1em; }
.field h4 { font-family: var(--serif); font-weight: 400; font-size: 1.45rem; margin: 10px 0 6px; line-height: 1.1; }
.field p { color: var(--muted); font-size: .88rem; margin: 0; }
.join { margin-top: 36px; display: flex; flex-wrap: wrap; gap: 18px 28px; align-items: center; justify-content: space-between; border: 1px dashed var(--line-2); border-radius: 14px; padding: 26px 28px; }
.join p { margin: 0; color: var(--muted); max-width: 60ch; }
.join p b { color: var(--text); font-weight: 500; }
@media (max-width: 960px) { .fields { grid-template-columns: 1fr 1fr; } }
@media (max-width: 520px) { .fields { grid-template-columns: 1fr; } .join { padding: 22px 18px; } }

/* Sectors */
.sectors { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--line); }
.sector { padding: 28px 24px 30px 0; border-bottom: 1px solid var(--line); display: grid; grid-template-columns: 44px 1fr; gap: 12px; }
.sector .n { font: .72rem var(--mono); color: var(--teal); padding-top: 8px; }
.sector h4 { font-family: var(--serif); font-weight: 400; font-size: 1.5rem; margin: 0 0 6px; line-height: 1.15; }
.sector p { margin: 0; color: var(--muted); font-size: .9rem; }
@media (max-width: 900px) { .sectors { grid-template-columns: 1fr 1fr; } }
@media (max-width: 560px) { .sectors { grid-template-columns: 1fr; } .sector { padding-right: 0; } }

/* CTA */
.cta-sec { position: relative; overflow: hidden; padding: 140px 0; text-align: center; border-bottom: 1px solid var(--line); }
.cta-sec h2 { max-width: 16ch; margin: 22px auto 22px; font-size: clamp(2.6rem, 5.4vw, 4.6rem); }
.cta-sec .lead { margin: 0 auto 36px; }
.cta-sec .cta { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.cta-sec::before { content: ""; position: absolute; left: 50%; top: 100%; width: 1100px; height: 700px; transform: translate(-50%, -55%); background: radial-gradient(closest-side, rgba(95,212,192,.16), transparent); pointer-events: none; }
@media (max-width: 700px) { .cta-sec { padding: 96px 0; } }

/* Footer */
.ftr { padding: 56px 0 40px; font-size: .88rem; color: var(--muted); }
.ftr .top { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 32px; padding-bottom: 36px; border-bottom: 1px solid var(--line); }
.ftr .cols { display: flex; gap: 56px; flex-wrap: wrap; }
.ftr h5 { font: .7rem var(--mono); letter-spacing: .12em; text-transform: uppercase; color: var(--text); margin: 0 0 12px; font-weight: 500; }
.ftr ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; }
.ftr a { text-decoration: none; }
.ftr a:hover { color: var(--teal-2); }
.ftr .tag { max-width: 34ch; margin-top: 14px; }
.ftr .bottom { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px; padding-top: 24px; font: .72rem var(--mono); letter-spacing: .04em; }

/* Reveal */
.rv { opacity: 0; transform: translateY(16px); transition: opacity .8s ease, transform .8s ease; }
.rv.in { opacity: 1; transform: none; }
.no-js .rv { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .rv { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
  .label .dot, .console .caret { animation: none; }
}