/* Liquidata, Inc. — site styles. Dark-first, single theme, committed. */
:root {
  --ink: #070b12;
  --ink-2: #0c1220;
  --ink-3: #121a2b;
  --line: rgba(233, 238, 245, 0.10);
  --line-strong: rgba(233, 238, 245, 0.22);
  --text: #e9eef5;
  --muted: #9aa7b8;
  --faint: #6b7789;
  --accent: #7fd8e8;
  --accent-deep: #3d7bff;
  --accent-ink: #062028;
  --energy: #f0b35b;
  --display: "Newsreader", "Garamond", "Times New Roman", serif;
  --sans: "IBM Plex Sans", "Helvetica Neue", Arial, sans-serif;
  --mono: "IBM Plex Mono", "SFMono-Regular", Menlo, Consolas, monospace;
  --max: 1200px;
  --gutter: clamp(16px, 4vw, 48px);
  color-scheme: dark;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body {
  margin: 0;
  background: var(--ink);
  color: var(--text);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}
img, svg, canvas { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible {
  outline: 2px solid var(--accent); outline-offset: 3px;
}
h1, h2, h3, h4 { margin: 0; font-weight: 400; text-wrap: balance; }
p { margin: 0; }
.wrap { max-width: var(--max); margin-inline: auto; padding-inline: var(--gutter); }

/* Type scale */
.display { font-family: var(--display); font-weight: 400; letter-spacing: -0.015em; line-height: 1.02; font-size: clamp(2.6rem, 6.4vw, 5.4rem); }
.display em, .h2 em, .h3 em { font-style: italic; color: var(--accent); }
.h2 { font-family: var(--display); font-weight: 400; letter-spacing: -0.012em; line-height: 1.08; font-size: clamp(2rem, 4.2vw, 3.4rem); }
.h3 { font-family: var(--display); font-weight: 400; line-height: 1.15; font-size: clamp(1.45rem, 2.4vw, 1.95rem); }
.lede { font-size: clamp(1.1rem, 1.6vw, 1.3rem); line-height: 1.5; color: var(--muted); max-width: 40ch; }
.prose { max-width: 62ch; color: var(--muted); }
.prose p + p { margin-top: 1em; }
.prose strong { color: var(--text); font-weight: 500; }
.eyebrow { font-family: var(--mono); font-size: 0.74rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--accent); }
.mono { font-family: var(--mono); font-variant-numeric: tabular-nums; }
.small { font-size: 0.9rem; color: var(--muted); }

/* Navigation */
.nav { position: sticky; top: env(safe-area-inset-top, 0px); z-index: 50; backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px); background: rgba(7, 11, 18, 0.72); border-bottom: 1px solid var(--line); }
.nav .wrap { display: flex; align-items: center; justify-content: space-between; gap: 24px; height: 68px; }
.brand { display: inline-flex; align-items: center; gap: 10px; font-family: var(--mono); font-size: 0.92rem; letter-spacing: 0.22em; text-transform: uppercase; color: var(--text); }
.brand svg { width: 40px; height: 20px; flex: 0 0 auto; }
.nav-links { display: flex; align-items: center; gap: 28px; list-style: none; margin: 0; padding: 0; }
.nav-links a { font-size: 0.95rem; color: var(--muted); transition: color 0.2s; }
.nav-links a:hover, .nav-links a[aria-current="page"] { color: var(--text); }
.nav-links a.btn-primary, .nav-links a.btn-primary:hover { color: var(--accent-ink); }
.nav-toggle { display: none; background: none; border: 1px solid var(--line-strong); color: var(--text); border-radius: 4px; padding: 8px 10px; font-family: var(--mono); font-size: 0.78rem; letter-spacing: 0.1em; text-transform: uppercase; cursor: pointer; }
@media (max-width: 900px) {
  .nav-links { display: none; position: absolute; left: 0; right: 0; top: 68px; flex-direction: column; align-items: stretch; gap: 0; background: var(--ink-2); border-bottom: 1px solid var(--line); padding: 8px 0 16px; }
  .nav-links.open { display: flex; }
  .nav-links li { padding: 0 var(--gutter); }
  .nav-links a { display: block; padding: 12px 0; font-size: 1.05rem; border-bottom: 1px solid var(--line); }
  .nav-links .btn { margin-top: 12px; text-align: center; }
  .nav-toggle { display: inline-block; }
}

/* Buttons */
.btn { display: inline-flex; align-items: center; gap: 10px; padding: 12px 20px; border-radius: 3px; font-size: 0.95rem; font-weight: 500; line-height: 1; border: 1px solid transparent; cursor: pointer; transition: transform 0.15s, background 0.2s, border-color 0.2s; font-family: var(--sans); }
.btn-primary { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); }
.btn-primary:hover { background: #9be3ef; }
.btn-ghost { background: transparent; color: var(--text); border-color: var(--line-strong); }
.btn-ghost:hover { border-color: var(--text); }
.btn svg { width: 16px; height: 16px; }
.btn:active { transform: translateY(1px); }

/* Hero */
.hero { position: relative; overflow: hidden; border-bottom: 1px solid var(--line); }
.hero .wrap { position: relative; display: grid; grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); gap: 48px; align-items: center; padding-block: clamp(64px, 10vw, 128px); min-height: 0; }
.hero-copy { display: grid; gap: 28px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; }
.hero-canvas { position: absolute; inset: 0; z-index: 0; pointer-events: none; }
.hero-canvas canvas { width: 100%; height: 100%; }
.hero .wrap > * { position: relative; z-index: 1; }
.hero-side { display: grid; gap: 14px; align-self: end; }
.hero-side .stat { border-top: 1px solid var(--line-strong); padding-top: 12px; }
.stat .num { font-family: var(--display); font-size: clamp(1.9rem, 3vw, 2.6rem); line-height: 1; letter-spacing: -0.01em; }
.stat .lbl { margin-top: 6px; font-size: 0.9rem; color: var(--muted); }
@media (max-width: 900px) { .hero .wrap { grid-template-columns: 1fr; } .hero-side { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 480px) { .hero-side { grid-template-columns: 1fr; } }

/* Spec strip */
.strip { border-bottom: 1px solid var(--line); background: var(--ink-2); overflow: hidden; }
.strip .wrap { display: flex; flex-wrap: wrap; gap: 0; }
@media (max-width: 700px) { .strip .wrap { flex-wrap: nowrap; overflow-x: auto; scrollbar-width: none; } }
.strip .wrap::-webkit-scrollbar { display: none; }
.strip .cell { flex: 0 0 auto; padding: 14px 28px 14px 0; margin-right: 28px; border-right: 1px solid var(--line); font-family: var(--mono); font-size: 0.8rem; letter-spacing: 0.04em; color: var(--muted); white-space: nowrap; }
.strip .cell b { color: var(--text); font-weight: 500; }
.strip .cell:last-child { border-right: 0; }

/* Sections */
.section { padding-block: clamp(64px, 9vw, 120px); border-bottom: 1px solid var(--line); }
.section-head { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: 32px 64px; align-items: end; margin-bottom: clamp(36px, 5vw, 64px); }
.section-head .eyebrow { margin-bottom: 14px; }
@media (max-width: 900px) { .section-head { grid-template-columns: 1fr; } }
.grid-3 { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 32px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 32px 64px; align-items: start; }
.grid-4 { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 24px; }
@media (max-width: 900px) { .grid-3, .grid-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); } .grid-2 { grid-template-columns: 1fr; } }
@media (max-width: 560px) { .grid-3, .grid-4 { grid-template-columns: 1fr; } }
.tile { border-top: 1px solid var(--line-strong); padding-top: 20px; display: grid; gap: 12px; align-content: start; }
.tile .h3 { font-size: 1.35rem; }
.tile p { color: var(--muted); }
.tile .mono { color: var(--faint); font-size: 0.76rem; letter-spacing: 0.08em; text-transform: uppercase; }

/* Diagram panels */
.panel { background: var(--ink-2); border: 1px solid var(--line); border-radius: 6px; padding: clamp(20px, 3vw, 32px); }
.layers { display: grid; gap: 10px; }
.layer { display: grid; grid-template-columns: 150px 1fr auto; gap: 16px; align-items: center; padding: 14px 16px; border: 1px solid var(--line); border-radius: 4px; background: var(--ink-3); }
.layer.is-service { border-color: var(--accent); background: rgba(127, 216, 232, 0.08); }
.layer .name { font-family: var(--display); font-size: 1.25rem; }
.layer .what { color: var(--muted); font-size: 0.95rem; }
.layer .who { font-family: var(--mono); font-size: 0.74rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--faint); text-align: right; }
.layer.is-service .who { color: var(--accent); }
.layer.is-power .name { color: var(--energy); }
@media (max-width: 640px) { .layer { grid-template-columns: 1fr; gap: 6px; } .layer .who { text-align: left; } }

.principles { counter-reset: p; display: grid; gap: 0; border-top: 1px solid var(--line-strong); }
.principle { display: grid; grid-template-columns: 56px 1fr; gap: 16px; padding: 20px 0; border-bottom: 1px solid var(--line); }
.principle::before { counter-increment: p; content: counter(p, upper-roman); font-family: var(--display); font-size: 1.5rem; color: var(--accent); line-height: 1; }
.principle h4 { font-family: var(--sans); font-weight: 500; font-size: 1.05rem; margin-bottom: 6px; }
.principle p { color: var(--muted); }

/* Tables */
.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: 6px; }
table { width: 100%; border-collapse: collapse; font-size: 0.95rem; }
th, td { text-align: left; padding: 14px 16px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { font-family: var(--mono); font-weight: 500; font-size: 0.74rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--faint); background: var(--ink-2); }
tr:last-child td { border-bottom: 0; }
td.num { font-family: var(--mono); font-variant-numeric: tabular-nums; white-space: nowrap; }
td .muted { color: var(--muted); }

/* Team */
.team { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 28px 40px; }
@media (max-width: 900px) { .team { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 560px) { .team { grid-template-columns: 1fr; } }
.person { border-top: 1px solid var(--line-strong); padding-top: 16px; display: grid; gap: 6px; }
.person .name { font-family: var(--display); font-size: 1.35rem; }
.person .role { font-family: var(--mono); font-size: 0.74rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--accent); }
.person p { color: var(--muted); font-size: 0.95rem; }

/* Sites */
.sites { display: grid; gap: 0; border-top: 1px solid var(--line-strong); }
.site { display: grid; grid-template-columns: 180px 1fr 220px; gap: 24px; padding: 24px 0; border-bottom: 1px solid var(--line); align-items: start; }
.site .country { font-family: var(--display); font-size: 1.5rem; }
.site .basis { font-family: var(--mono); font-size: 0.74rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--faint); line-height: 1.7; }
.site p { color: var(--muted); }
@media (max-width: 760px) { .site { grid-template-columns: 1fr; gap: 8px; } }

/* Calculator */
.calc { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.4fr); gap: 32px; align-items: start; }
@media (max-width: 900px) { .calc { grid-template-columns: 1fr; } }
.calc label { display: block; font-family: var(--mono); font-size: 0.74rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--faint); margin-bottom: 10px; }
.calc input[type="range"] { width: 100%; accent-color: var(--accent); }
.calc .readout { font-family: var(--display); font-size: 3rem; line-height: 1; margin: 10px 0 6px; }
.calc .readout small { font-family: var(--mono); font-size: 0.8rem; color: var(--muted); letter-spacing: 0.06em; margin-left: 8px; }
.calc .out { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px 24px; }
.calc .out > div { border-top: 1px solid var(--line-strong); padding-top: 10px; }
.calc .out .v { font-family: var(--mono); font-size: 1.35rem; font-variant-numeric: tabular-nums; }
.calc .out .k { font-size: 0.85rem; color: var(--muted); margin-top: 2px; }
@media (max-width: 480px) { .calc .out { grid-template-columns: 1fr; } }
.calc select { width: 100%; background: var(--ink-3); color: var(--text); border: 1px solid var(--line-strong); border-radius: 3px; padding: 10px 12px; font-family: var(--sans); font-size: 0.95rem; }

/* CTA band */
.cta-band { padding-block: clamp(56px, 8vw, 96px); background: linear-gradient(180deg, var(--ink-2), var(--ink)); border-bottom: 1px solid var(--line); }
.cta-band .wrap { display: grid; grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); gap: 32px; align-items: center; }
@media (max-width: 900px) { .cta-band .wrap { grid-template-columns: 1fr; } }
.cta-band .actions { display: flex; flex-wrap: wrap; gap: 12px; justify-content: flex-end; }
@media (max-width: 900px) { .cta-band .actions { justify-content: flex-start; } }

/* Forms */
.form { display: grid; gap: 18px; }
.form .row { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
@media (max-width: 560px) { .form .row { grid-template-columns: 1fr; } }
.form label { display: grid; gap: 8px; font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--faint); }
.form input, .form select, .form textarea { width: 100%; background: var(--ink-3); color: var(--text); border: 1px solid var(--line-strong); border-radius: 3px; padding: 12px 14px; font-family: var(--sans); font-size: 1rem; }
.form textarea { min-height: 120px; resize: vertical; }
.form .note { font-size: 0.85rem; color: var(--faint); }
.form-ok { display: none; border: 1px solid var(--accent); background: rgba(127, 216, 232, 0.08); padding: 16px 18px; border-radius: 4px; color: var(--text); }
.form-ok.show { display: block; }

/* Footer */
.footer { padding-block: 48px 40px; color: var(--muted); font-size: 0.9rem; }
.footer .wrap { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 32px; }
@media (max-width: 900px) { .footer .wrap { grid-template-columns: 1fr 1fr; } }
@media (max-width: 480px) { .footer .wrap { grid-template-columns: 1fr; } }
.footer h5 { margin: 0 0 12px; font-family: var(--mono); font-weight: 500; font-size: 0.72rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--faint); }
.footer ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; }
.footer a:hover { color: var(--text); }
.footer .legal { grid-column: 1 / -1; border-top: 1px solid var(--line); padding-top: 20px; margin-top: 8px; display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px; font-size: 0.82rem; color: var(--faint); }

/* Reveal: visible at rest; a short settle when the section scrolls into view */
.reveal { opacity: 1; transform: none; }
@keyframes settle { from { opacity: 0.55; transform: translateY(10px); } to { opacity: 1; transform: none; } }
@media (prefers-reduced-motion: no-preference) {
  .js .reveal.in { animation: settle 0.6s ease both; }
}

/* Page header (inner pages) */
.page-head { padding-block: clamp(56px, 8vw, 104px) clamp(32px, 5vw, 56px); border-bottom: 1px solid var(--line); }
.page-head .wrap { display: grid; gap: 20px; max-width: var(--max); }
.page-head .lede { max-width: 56ch; }

/* Utility */
.stack { display: grid; gap: 20px; }
.mt { margin-top: 32px; }
.divider { border: 0; border-top: 1px solid var(--line); margin: 0; }
.accent { color: var(--accent); }
.energy { color: var(--energy); }