/* LightKeeper landing page (site root), "Night watch": black water, buoy lights flashing at their Light List rhythms.
   No scripts needed for the look; everything moves with CSS and stops for reduced motion. */

@font-face { font-family: Inter; font-weight: 400; src: url(../vendor/fonts/inter-400.woff2) format("woff2"); font-display: swap; }
@font-face { font-family: Inter; font-weight: 500; src: url(../vendor/fonts/inter-500.woff2) format("woff2"); font-display: swap; }
@font-face { font-family: Inter; font-weight: 600; src: url(../vendor/fonts/inter-600.woff2) format("woff2"); font-display: swap; }
@font-face { font-family: Inter; font-weight: 700; src: url(../vendor/fonts/inter-700.woff2) format("woff2"); font-display: swap; }

:root {
  color-scheme: dark;
  --ink: #03060b; --ink-2: #070d15; --line: #16222f; --line-2: #24364a;
  --text: #eef3f8; --text-2: #a2b2c2; --text-3: #647789;
  --red: #ff4d5a; --green: #3be38a; --white: #fff4d6; --yellow: #ffd23f; --teal: #3ad0e8; --amber: #ffb547; --magenta: #e0559b;
  --font: Inter, "Segoe UI", system-ui, sans-serif;
  --mono: ui-monospace, "Cascadia Mono", Consolas, Menlo, monospace;
  --max: 1180px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--ink); color: var(--text-2); font: 16px/1.6 var(--font); -webkit-font-smoothing: antialiased; overflow-x: hidden; }
a { color: inherit; }
.wrap { max-width: var(--max); margin: 0 auto; padding: 0 28px; }

/* ---------- the lights: --k keyframes, --p period, --o offset (Light List characteristic) ---------- */
@keyframes fl  { 0%, 9% { opacity: 1; } 14%, 100% { opacity: .07; } }
@keyframes q   { 0%, 45% { opacity: 1; } 55%, 100% { opacity: .07; } }
@keyframes iso { 0%, 49% { opacity: 1; } 51%, 100% { opacity: .07; } }
@keyframes oc  { 0%, 80% { opacity: 1; } 84%, 96% { opacity: .07; } 100% { opacity: 1; } }
.lit, .lt { animation: var(--k, fl) var(--p, 4s) var(--o, 0s) infinite; }
.lt { display: inline-block; width: 10px; height: 10px; border-radius: 50%; background: var(--c); box-shadow: 0 0 12px 3px color-mix(in srgb, var(--c) 55%, transparent); flex: none; }
.lt.g { --c: var(--green); } .lt.r { --c: var(--red); } .lt.w { --c: var(--white); } .lt.y { --c: var(--yellow); }

/* ---------- nav ---------- */
.nav { position: absolute; top: 0; left: 0; right: 0; z-index: 5; }
.nav .wrap { display: flex; align-items: center; justify-content: space-between; height: 72px; gap: 16px; }
.brand { display: inline-flex; align-items: center; gap: 10px; color: var(--text); font-size: 18px; font-weight: 500; text-decoration: none; }
.brand b { font-weight: 700; }
.brand img { width: 28px; height: 28px; }
.nav nav { display: flex; gap: 26px; font-size: 14px; }
.nav nav a { color: var(--text-2); text-decoration: none; white-space: nowrap; }
.nav nav a:hover { color: var(--text); }

/* ---------- hero: night horizon ---------- */
.hero { position: relative; min-height: 100vh; min-height: 100svh; display: flex; align-items: center; overflow: hidden; background: var(--ink); isolation: isolate; }
.sea { position: absolute; inset: 0; width: 100%; height: 100%; z-index: -2; }
.hero::before { content: ""; position: absolute; inset: 0; z-index: -1; pointer-events: none;
  background: linear-gradient(90deg, rgba(3, 6, 11, .9) 0%, rgba(3, 6, 11, .55) 38%, transparent 62%), linear-gradient(0deg, var(--ink) 0%, transparent 16%); }
.sea .star { fill: #cfe0ff; }
.sea .beam { transform-box: view-box; transform-origin: 236px 470px; animation: sweep 11s ease-in-out infinite alternate; }
@keyframes sweep { 0% { transform: rotate(-7deg); opacity: .35; } 50% { opacity: 1; } 100% { transform: rotate(9deg); opacity: .4; } }
.sea .lamp { animation: iso 11s infinite; }
.sea .swell { stroke: rgba(150, 190, 230, .07); stroke-width: 1.2; stroke-linecap: round; animation: swell 9s ease-in-out infinite alternate; }
.sea .swell:nth-child(even) { animation-duration: 13s; animation-direction: alternate-reverse; }
@keyframes swell { to { transform: translateX(40px); } }
.sea .tag { fill: rgba(238, 243, 248, .45); font: 13px var(--mono); }

.hero .copy { position: relative; padding: 130px 0 120px; max-width: 720px; }
.eyebrow { display: inline-flex; align-items: center; gap: 12px; font: 600 12px/1 var(--mono); letter-spacing: .16em; text-transform: uppercase; color: var(--text-3); }
h1 { margin: 24px 0 24px; font-size: clamp(40px, 5.8vw, 82px); line-height: .92; letter-spacing: -.035em; text-transform: uppercase; font-weight: 700; color: var(--text); }
h1 span { display: block; padding-bottom: .06em; background: linear-gradient(180deg, #eef3f8 10%, rgba(238, 243, 248, .18) 100%); -webkit-background-clip: text; background-clip: text; color: transparent; }
.lead { margin: 0 0 34px; max-width: 470px; font-size: 18px; }
.cta { display: flex; gap: 12px; flex-wrap: wrap; }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 10px; min-height: 50px; padding: 12px 22px; border-radius: 2px;
  border: 1px solid var(--line-2); background: rgba(3, 6, 11, .55); color: var(--text); font: 700 13.5px var(--font); letter-spacing: .08em; text-transform: uppercase; text-decoration: none;
  transition: border-color .15s, background .15s, transform .15s; }
.btn:hover { border-color: var(--text-3); }
.btn.primary { background: var(--text); border-color: var(--text); color: var(--ink); }
.btn.primary:hover { background: #fff; transform: translateY(-1px); }
.btn .arrow { transition: transform .15s; }
.btn:hover .arrow { transform: translateX(3px); }
.scroll { position: absolute; left: 50%; bottom: 22px; transform: translateX(-50%); color: var(--text-3); font: 11px var(--mono); letter-spacing: .24em; text-decoration: none; }
.scroll:hover { color: var(--text); }

/* ---------- sections ---------- */
section { position: relative; padding: 120px 0 0; }
.kicker { display: flex; align-items: center; gap: 14px; font: 600 12px/1 var(--mono); letter-spacing: .16em; text-transform: uppercase; color: var(--text-3); }
.kicker::after { content: ""; flex: 1; height: 1px; background: var(--line); }
h2 { margin: 20px 0 0; font-size: clamp(34px, 5vw, 62px); line-height: .96; letter-spacing: -.03em; text-transform: uppercase; color: var(--text); font-weight: 700; max-width: 820px; }
.sub { margin: 18px 0 0; max-width: 560px; font-size: 17px; }

/* "What it does" as Light List entries, each with its own light */
.ll { list-style: none; margin: 52px 0 0; padding: 0; border-top: 1px solid var(--line); font-family: var(--mono); }
.ll li { display: grid; grid-template-columns: 34px 58px minmax(180px, 1.1fr) 2fr 120px; align-items: center; gap: 20px; padding: 24px 16px; border-bottom: 1px solid var(--line); transition: background .2s; }
.ll li:hover { background: linear-gradient(90deg, color-mix(in srgb, var(--c) 9%, transparent), transparent 70%); }
.ll li:hover .lt { animation-duration: 1s; }
.ll .no { color: var(--text-3); font-size: 13px; }
.ll h3 { margin: 0; font: 600 21px/1.2 var(--font); letter-spacing: -.01em; color: var(--text); }
.ll p { margin: 0; font: 15.5px/1.55 var(--font); }
.ll .ch { justify-self: end; color: var(--c); font-size: 14px; white-space: nowrap; }
.ll li.g { --c: var(--green); } .ll li.r { --c: var(--red); } .ll li.w { --c: var(--white); } .ll li.y { --c: var(--yellow); }

/* The app view: a drawn chart with a detail card */
.chart { position: relative; margin-top: 52px; border: 1px solid var(--line-2); border-radius: 8px; overflow: hidden; background: #0a121b; aspect-ratio: 16 / 8; box-shadow: 0 40px 120px rgba(0, 0, 0, .6); }
.chart .frame { position: absolute; inset: 0; overflow: hidden; }
.chart .bar { position: absolute; top: 0; left: 0; right: 0; height: 36px; z-index: 2; display: flex; align-items: center; gap: 8px; padding: 0 14px; background: rgba(10, 18, 27, .92); border-bottom: 1px solid var(--line); font: 12px var(--mono); color: var(--text-3); }
.chart .bar i { width: 9px; height: 9px; border-radius: 50%; background: var(--line-2); }
.chart .bar span { margin-left: 10px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.map { position: absolute; inset: 0; width: 100%; height: 100%; animation: drift 60s ease-in-out infinite alternate; }
@keyframes drift { from { transform: scale(1.02) translate3d(0, 0, 0); } to { transform: scale(1.08) translate3d(-2%, 1%, 0); } }
.map .grid line { stroke: rgba(255, 255, 255, .045); stroke-width: 1; }
.map .label { fill: rgba(162, 178, 194, .55); font: italic 15px var(--font); letter-spacing: .3em; text-transform: uppercase; }
.map .tag { fill: rgba(238, 243, 248, .66); font: 12px var(--mono); }
.map .route { fill: none; stroke: var(--magenta); stroke-width: 3; stroke-dasharray: 10 9; stroke-linecap: round; animation: march 1.6s linear infinite; }
@keyframes march { to { stroke-dashoffset: -19; } }
.map .day rect { fill: var(--magenta); }
.map .day text { fill: #fff; font: 600 12px var(--font); }
.aid .dot { stroke: rgba(3, 6, 11, .9); stroke-width: 2; }
.aid .lit { opacity: .07; }
.aid.g .dot { fill: #17633d; } .aid.g .core { fill: #c9ffe0; }
.aid.r .dot { fill: #7a1f27; } .aid.r .core { fill: #ffd3d7; }
.aid.w .dot { fill: #6b6450; } .aid.w .core { fill: #fffaf0; }
.pin rect { stroke-width: 2; } .pin path { fill: none; stroke-width: 2; stroke-linecap: round; }
.pin.ramp rect { fill: #0d3a44; stroke: var(--teal); } .pin.ramp path { stroke: var(--teal); }
.pin.hotel rect { fill: #3d2a0c; stroke: var(--amber); } .pin.hotel path { stroke: var(--amber); }
.map .pick { fill: none; stroke: var(--text); stroke-width: 1.5; transform-box: fill-box; transform-origin: center; animation: ping 2.4s ease-out infinite; }
@keyframes ping { 0% { transform: scale(.8); opacity: .9; } 100% { transform: scale(2.4); opacity: 0; } }

.pop { position: absolute; z-index: 2; right: 22px; top: 58px; width: 280px; border: 1px solid var(--line-2); border-radius: 8px; background: #0a111a;
  box-shadow: 0 24px 60px rgba(0, 0, 0, .55); font-size: 13px; overflow: hidden; }
.pop header { display: flex; align-items: center; gap: 12px; padding: 14px 16px 12px; border-bottom: 1px solid var(--line); }
.pop header b { display: block; color: var(--text); font-size: 14px; font-weight: 600; }
.pop header span { color: var(--text-3); font: 12px var(--mono); }
.pop dl { margin: 0; padding: 10px 16px; display: grid; grid-template-columns: auto 1fr; gap: 6px 14px; }
.pop dt { color: var(--text-3); }
.pop dd { margin: 0; color: var(--text); text-align: right; }
.pop .tide { padding: 0 16px 14px; }
.pop .tide svg { display: block; width: 100%; height: 50px; }
.pop .tide small { display: flex; justify-content: space-between; color: var(--text-3); font: 11px var(--mono); }
.pop footer { display: flex; align-items: center; gap: 8px; padding: 10px 16px; border-top: 1px solid var(--line); color: var(--green); font: 12px var(--mono); }
.pop footer::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: currentColor; }

/* Two editions */
.editions { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin-top: 52px; }
.ed { position: relative; display: flex; flex-direction: column; padding: 32px; border: 1px solid var(--line); border-radius: 4px; background: linear-gradient(180deg, var(--ink-2), var(--ink)); overflow: hidden; }
.ed .device { height: 150px; margin-bottom: 28px; display: flex; align-items: flex-end; }
.ed .device svg { height: 100%; width: auto; }
.ed h3 { margin: 0 0 8px; font-size: 24px; color: var(--text); font-weight: 700; letter-spacing: -.01em; text-transform: uppercase; }
.ed p { margin: 0 0 20px; }
.ed .more { margin-top: auto; align-self: flex-start; color: var(--text); font: 600 13px var(--mono); letter-spacing: .06em; text-transform: uppercase; text-decoration: none; border-bottom: 1px solid var(--text-3); padding-bottom: 3px; }
.ed .more:hover { border-color: var(--text); }
.ed .badge { position: absolute; top: 28px; right: 28px; display: inline-flex; align-items: center; gap: 8px; font: 11px var(--mono); letter-spacing: .12em; text-transform: uppercase; color: var(--text-3); }
.ed .badge .lt { width: 7px; height: 7px; }

.caution { margin-top: 28px; padding: 18px 22px; border: 1px solid rgba(224, 85, 155, .45); border-radius: 2px; font-size: 14.5px; }
.caution b { color: var(--magenta); font: 700 12px var(--mono); letter-spacing: .16em; margin-right: 10px; }
.caution a { color: var(--text); }

/* Closing: one big white light */
.closing { position: relative; margin-top: 130px; padding: 130px 0 120px; text-align: center; border-top: 1px solid var(--line); overflow: hidden;
  background: radial-gradient(700px 300px at 50% 0%, rgba(255, 244, 214, .07), transparent 70%); }
.closing .beacon { width: 16px; height: 16px; margin: 0 auto 36px; border-radius: 50%; background: var(--white); box-shadow: 0 0 40px 14px rgba(255, 244, 214, .45), 0 0 120px 40px rgba(255, 244, 214, .12); animation: iso 6s infinite; }
.closing .ch { display: block; margin: -20px 0 26px; font: 12px var(--mono); letter-spacing: .16em; color: var(--text-3); }
.closing h2 { margin: 0 auto 16px; }
.closing p { margin: 0 auto 32px; max-width: 460px; }
.closing .cta { justify-content: center; }

footer { border-top: 1px solid var(--line); padding: 32px 0 46px; font-size: 13.5px; color: var(--text-3); }
footer .wrap { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
footer nav { display: flex; gap: 20px; flex-wrap: wrap; }
footer a { color: var(--text-2); text-decoration: none; }
footer a:hover { color: var(--text); }

a:focus-visible, .btn:focus-visible { outline: 2px solid var(--teal); outline-offset: 3px; }

/* ---------- smaller screens ---------- */
@media (max-width: 980px) {
  .ll li { grid-template-columns: 26px 1fr auto; grid-template-areas: "lt h ch" ". p p"; gap: 6px 16px; padding: 22px 6px; }
  .ll .lt { grid-area: lt; } .ll h3 { grid-area: h; } .ll p { grid-area: p; } .ll .ch { grid-area: ch; } .ll .no { display: none; }
  .chart { aspect-ratio: 4 / 3; }
  .sea .tag { display: none; }
}
@media (max-width: 820px) {
  .editions { grid-template-columns: 1fr; }
  .nav nav .hide-sm { display: none; }
  .chart { aspect-ratio: auto; padding-top: 476px; overflow: visible; border: 0; border-radius: 0; background: none; box-shadow: none; }
  .chart .frame { inset: 0 0 auto; height: 460px; border: 1px solid var(--line-2); border-radius: 8px; background: #0a121b; }
  .pop { position: relative; right: auto; top: auto; width: auto; }
}
@media (max-width: 600px) {
  .wrap { padding: 0 18px; }
  .nav .wrap { height: 60px; }
  .nav nav { gap: 16px; font-size: 13.5px; }
  .nav nav .hide-xs { display: none; }
  .hero { align-items: flex-start; }
  .hero::before { background: linear-gradient(180deg, rgba(3, 6, 11, .85) 0%, rgba(3, 6, 11, .6) 50%, transparent 72%, var(--ink) 100%); }
  .hero .copy { padding: 100px 0 220px; }
  .lead { font-size: 16.5px; }
  .cta .btn { flex: 1 1 100%; }
  section { padding-top: 88px; }
  .chart { padding-top: 396px; }
  .chart .frame { height: 380px; }
  .brand { font-size: 17px; }
  .brand img { width: 24px; height: 24px; }
  .ed { padding: 24px; }
  .ed .badge { top: 22px; right: 22px; }
  .closing { margin-top: 96px; padding: 96px 0 90px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; }
  .lit, .aid .lit { opacity: 1; }
  html { scroll-behavior: auto; }
}

/* Data line under the hero buttons (filled by /home-stats.js) */
.hero .stats { display: block; max-width: 560px; margin-top: 26px; color: var(--text-3); font: 12.5px/1.5 var(--mono); letter-spacing: .02em; text-decoration: none; }
.hero .stats .lt { width: 7px; height: 7px; margin-right: 10px; vertical-align: 1px; animation: none; }
.hero .stats b { display: inline-block; color: var(--text); font-weight: 600; border-bottom: 1px solid var(--text-3); }
.hero .stats:hover b { border-color: var(--text); }
.hero .stats[hidden] { display: none; }