/* SPDX-License-Identifier: AGPL-3.0-or-later */
/* Habitable field system — a tenant-evidence identity, not a software template. */

@font-face {
  font-family: "Barlow Condensed";
  src: url("fonts/BarlowCondensed-SemiBold.ttf") format("truetype");
  font-style: normal;
  font-weight: 600;
  font-display: swap;
}

@font-face {
  font-family: "Barlow Condensed";
  src: url("fonts/BarlowCondensed-ExtraBold.ttf") format("truetype");
  font-style: normal;
  font-weight: 800;
  font-display: swap;
}

:root {
  color-scheme: light;
  --night: #071d26;
  --night-raised: #0d3440;
  --field: #edf3f1;
  --paper: #f9fbf8;
  --ink: #10272e;
  --ink-soft: #4b6268;
  --chalk: #f4faf7;
  --rule: #9eb1ad;
  --rule-dark: #3e5d64;
  --signal: #f4c844;
  --signal-soft: #fff2b8;
  --oxide: #a63d27;
  --seal: #0c8171;
  --focus: #ff7a45;
  --display: "Barlow Condensed", "Arial Narrow", sans-serif;
  --body: "Avenir Next", Avenir, "Segoe UI", Helvetica, Arial, sans-serif;
  --data: ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--field);
  font: 17px/1.62 var(--body);
}

a { color: inherit; text-underline-offset: .2em; }
a:hover { text-decoration-thickness: 2px; }
a:focus-visible { outline: 3px solid var(--focus); outline-offset: 4px; }
.skip {
  position: fixed;
  inset: .75rem auto auto -100vw;
  z-index: 20;
  padding: .7rem 1rem;
  color: var(--night);
  background: var(--signal);
  font-weight: 800;
}
.skip:focus { left: .75rem; }

.hero {
  position: relative;
  overflow: hidden;
  min-height: min(58rem, 100svh);
  padding: 0 max(1rem, calc((100vw - 86rem) / 2));
  color: var(--chalk);
  background-color: var(--night);
  background-image:
    linear-gradient(rgba(125, 174, 176, .09) 1px, transparent 1px),
    linear-gradient(90deg, rgba(125, 174, 176, .09) 1px, transparent 1px);
  background-size: 4rem 4rem;
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: .45rem;
  background: linear-gradient(90deg, var(--signal) 0 38%, var(--oxide) 38% 62%, var(--seal) 62%);
}

.brand {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  gap: .8rem;
  min-height: 6.6rem;
  border-bottom: 1px solid var(--rule-dark);
}
.brand-link { display: inline-flex; align-items: center; gap: .8rem; text-decoration: none; }
.brand img { width: 3rem; height: 3rem; }
.brand strong {
  font: 800 1.65rem/1 var(--display);
  letter-spacing: .035em;
  text-transform: uppercase;
}
.hero-nav { display: flex; gap: 1rem; margin-inline-start: clamp(.5rem, 3vw, 2rem); }
.hero-nav a {
  color: #c9d8d5;
  font: 600 .64rem/1 var(--data);
  letter-spacing: .09em;
  text-decoration: none;
  text-transform: uppercase;
}
.hero-nav a:hover { color: var(--signal); text-decoration: underline; }
.brand-note {
  margin-inline-start: auto;
  color: #a6bdbe;
  font: 600 .66rem/1.35 var(--data);
  letter-spacing: .16em;
  text-transform: uppercase;
}

.hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1.18fr) minmax(24rem, .82fr);
  gap: clamp(3rem, 7vw, 7rem);
  align-items: center;
  min-height: 40rem;
  padding: clamp(3.5rem, 6vw, 5rem) 0 5rem;
}
.eyebrow,
.section-kicker,
.record-id {
  margin: 0 0 1rem;
  color: var(--signal);
  font: 600 .7rem/1.3 var(--data);
  letter-spacing: .16em;
  text-transform: uppercase;
}
h1 {
  max-width: 12.3ch;
  margin: 0 0 1.6rem;
  font: 800 clamp(4.2rem, 7.2vw, 7.2rem)/.8 var(--display);
  letter-spacing: -.015em;
  text-transform: uppercase;
}
h1 span { display: block; color: var(--signal); }
.tagline {
  max-width: 42rem;
  margin: 0 0 1.5rem;
  color: #c9d8d5;
  font-size: clamp(1.1rem, 2vw, 1.35rem);
}
.cta { display: flex; flex-wrap: wrap; gap: .7rem; margin: 1.8rem 0 1rem; }
.btn {
  display: inline-flex;
  min-height: 3.2rem;
  align-items: center;
  justify-content: center;
  padding: .7rem 1.05rem;
  border: 2px solid var(--signal);
  font: 800 .82rem/1.15 var(--body);
  text-decoration: none;
}
.btn-primary { color: var(--night); background: var(--signal); }
.btn-primary:hover { color: var(--chalk); background: var(--oxide); border-color: var(--oxide); }
.btn-secondary { color: var(--signal); background: transparent; }
.btn-secondary:hover { color: var(--night); background: var(--signal-soft); }
.text-link {
  align-self: center;
  padding: .5rem .2rem;
  color: #c9d8d5;
  font-weight: 700;
}
.privacy-note { max-width: 44rem; margin: 0; color: #9fb5b5; font-size: .83rem; }
.alpha {
  max-width: 44rem;
  margin: 1.35rem 0 0;
  padding: .9rem 1rem .9rem 1.2rem;
  border-inline-start: .35rem solid var(--oxide);
  color: #f2dfd8;
  background: rgba(200, 75, 49, .13);
}

.case-file {
  position: relative;
  padding: 1.2rem;
  color: var(--chalk);
  background: var(--night-raised);
  border: 1px solid #5f7e82;
  box-shadow: 1rem 1rem 0 rgba(0, 0, 0, .28);
  clip-path: polygon(0 0, calc(100% - 1.25rem) 0, 100% 1.25rem, 100% 100%, 0 100%);
}
.case-file::before {
  content: "";
  position: absolute;
  inset: 0 0 auto auto;
  width: 1.25rem;
  height: 1.25rem;
  background: var(--signal);
}
.case-file h2 {
  margin: 0 0 .25rem;
  font: 600 1.7rem/1 var(--display);
  letter-spacing: .02em;
  text-transform: uppercase;
}
.building-section {
  position: relative;
  display: grid;
  grid-template-rows: repeat(4, 3.35rem);
  margin: 1.5rem 0;
  border-inline: 2px solid #759095;
  border-block-end: 2px solid #759095;
}
.building-section::before {
  content: "";
  position: absolute;
  inset: .25rem auto .25rem 39%;
  border-inline-start: 1px dashed #769095;
}
.floor {
  position: relative;
  display: flex;
  align-items: center;
  border-block-start: 1px solid #759095;
}
.floor span {
  width: 3rem;
  padding-inline-start: .5rem;
  color: #9fb6b8;
  font: 600 .64rem/1 var(--data);
}
.floor i {
  position: absolute;
  inset-inline-start: var(--node-x);
  width: .9rem;
  height: .9rem;
  border: 2px solid var(--signal);
  border-radius: 50%;
  background: var(--night-raised);
  box-shadow: 0 0 0 .28rem var(--night-raised);
}
.floor-active { color: var(--chalk); background: rgba(244, 200, 68, .08); }
.floor-active span { color: var(--signal); }
.floor-active::after {
  content: "CAPTURE → NOTICE → RESPONSE";
  position: absolute;
  inset-inline-end: .45rem;
  color: #9fb6b8;
  font: 600 .54rem/1 var(--data);
  letter-spacing: .06em;
}
.case-file dl { display: grid; grid-template-columns: 1.15fr 1fr; margin: 0; }
.case-file dt,
.case-file dd { margin: 0; padding: .65rem 0; border-block-start: 1px solid #49676d; }
.case-file dt { color: #a8bcbc; font-size: .78rem; }
.case-file dd { text-align: end; font: 600 .76rem/1.4 var(--data); }
.status-open { color: var(--signal); }

main { overflow: hidden; background: var(--field); }
main > section,
footer {
  width: min(calc(100% - 2rem), 86rem);
  margin-inline: auto;
}
section { position: relative; margin-block: clamp(5rem, 10vw, 9rem); }
section::after {
  content: "";
  position: absolute;
  inset: auto 0 -4rem;
  height: 1px;
  background: linear-gradient(90deg, var(--night) 0 16rem, var(--rule) 16rem);
}
h2 {
  max-width: 23ch;
  margin: 0 0 1rem;
  font: 800 clamp(2.7rem, 5vw, 5rem)/.9 var(--display);
  letter-spacing: -.01em;
  text-transform: uppercase;
}
h3 { line-height: 1.25; }
.section-kicker { color: var(--oxide); }
.lede { max-width: 54rem; color: var(--ink-soft); font-size: 1.12rem; }

.flow {
  position: relative;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  margin: 3rem 0 0;
  padding: 0;
  list-style: none;
  counter-reset: workflow;
}
.flow::before { content: ""; position: absolute; inset: 1.1rem 10% auto; border-block-start: 2px solid var(--rule-dark); }
.flow li { position: relative; padding: 3.2rem clamp(1rem, 3vw, 2rem) 0 0; counter-increment: workflow; }
.flow li::before {
  content: "0" counter(workflow);
  position: absolute;
  inset: 0 auto auto 0;
  z-index: 1;
  display: grid;
  width: 2.2rem;
  height: 2.2rem;
  place-items: center;
  border: 2px solid var(--night);
  color: var(--night);
  background: var(--signal);
  font: 600 .65rem/1 var(--data);
}
.flow strong { display: block; margin: 0 0 .4rem; font: 600 1.55rem/1 var(--display); text-transform: uppercase; }

.audience-grid { display: grid; grid-template-columns: 1.15fr 1fr 1fr; gap: 1rem; margin-top: 2.4rem; }
.route {
  position: relative;
  display: flex;
  min-width: 0;
  min-height: 21rem;
  flex-direction: column;
  padding: 1.5rem 1.5rem 1.5rem 2rem;
  border: 1px solid var(--rule);
  background: var(--paper);
}
.route::before { content: ""; position: absolute; inset: 0 auto 0 0; width: .45rem; background: var(--seal); }
.route:nth-child(2)::before { background: var(--oxide); }
.route:nth-child(3)::before { background: var(--signal); }
.route h3 { margin: 0 0 .8rem; font: 600 1.65rem/1 var(--display); text-transform: uppercase; }
.route p { color: var(--ink-soft); }
.route ul { margin: auto 0 0; padding-inline-start: 1.1rem; }
.route li + li { margin-top: .4rem; }

.trust-grid { display: grid; grid-template-columns: 1.2fr .8fr; gap: 0; margin-top: 2.5rem; }
.trust-card { padding: clamp(1.5rem, 4vw, 2.8rem); color: var(--chalk); background: var(--night); }
.trust-card.open { color: var(--night); background: var(--signal); }
.trust-card h3 { margin-top: 0; font: 600 1.75rem/1 var(--display); text-transform: uppercase; }
.trust-card ul { margin-bottom: 0; padding-inline-start: 1.2rem; }
.trust-card li + li { margin-top: .6rem; }
.checks { list-style: none; padding: 0 !important; }
.checks li { position: relative; padding-inline-start: 1.7rem; }
.checks li::before { content: "◆"; position: absolute; inset-inline-start: 0; color: var(--signal); font-size: .75rem; }
.limit { margin: 0; padding: 1rem 1.2rem; border: 1px solid var(--rule); border-block-start: 0; background: var(--paper); }

.shots { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1rem; }
figure { margin: 1.5rem 0; }
figure img { display: block; width: 100%; height: auto; border: 1px solid var(--rule-dark); background: var(--paper); }
figcaption { margin-top: .55rem; color: var(--ink-soft); font-size: .88rem; }
pre { padding: 1.2rem; overflow-x: auto; border-inline-start: .45rem solid var(--signal); color: #dfece8; background: var(--night); }
code { font-family: var(--data); }
.technical-links { columns: 2; max-width: 58rem; padding-inline-start: 1.2rem; }
.technical-links li { break-inside: avoid; margin-bottom: .45rem; }

.safety {
  display: grid;
  grid-template-columns: .8fr 1.2fr;
  gap: clamp(2rem, 6vw, 5rem);
  width: 100%;
  max-width: none;
  margin-bottom: 0;
  padding: clamp(3rem, 7vw, 6rem) max(1rem, calc((100vw - 86rem) / 2));
  color: var(--chalk);
  background: var(--night);
}
.safety::after { display: none; }
.safety h2 { color: var(--signal); }
.safety .section-kicker { color: var(--signal); }
.resource-list { margin: 0; padding: 0; list-style: none; }
.resource-list li { padding: .9rem 0; border-block-start: 1px solid var(--rule-dark); }
.resource-list a { color: var(--signal); font-weight: 800; }
.resource-list span { display: block; color: #a9bdbb; font-size: .88rem; }
.urgent { grid-column: 1 / -1; margin: 0; padding-top: 1rem; border-block-start: 1px solid var(--rule-dark); }

footer {
  width: 100%;
  max-width: none;
  margin: 0;
  padding: 1.4rem max(1rem, calc((100vw - 86rem) / 2));
  border-block-start: .4rem solid var(--signal);
  color: #9eb3b3;
  background: #04151c;
  font-size: .82rem;
}
footer p { max-width: 86rem; margin: 0; }

@media (max-width: 62rem) {
  .hero-grid { grid-template-columns: 1fr; }
  .case-file { max-width: 38rem; }
  .audience-grid { grid-template-columns: 1fr 1fr; }
  .route:first-child { grid-column: 1 / -1; }
  .safety { grid-template-columns: 1fr; }
  .urgent { grid-column: auto; }
}

@media (max-width: 44rem) {
  .hero { min-height: auto; }
  .brand { min-height: 5.5rem; }
  .hero-nav { display: none; }
  .brand-note { max-width: 9rem; text-align: end; }
  .hero-grid { min-height: 0; padding: 3.8rem 0 4.5rem; }
  h1 { font-size: clamp(4rem, 20vw, 6rem); }
  .cta { display: grid; }
  .text-link { justify-self: start; }
  .flow { grid-template-columns: 1fr; gap: 2rem; }
  .flow::before { inset: 1rem auto 1rem 1rem; border-block-start: 0; border-inline-start: 2px solid var(--rule-dark); }
  .flow li { padding: .2rem 0 0 3.5rem; }
  .audience-grid,
  .trust-grid,
  .shots { grid-template-columns: 1fr; }
  .route:first-child { grid-column: auto; }
  .technical-links { columns: 1; }
}

@media (prefers-reduced-motion: no-preference) {
  .hero-grid > div:first-child { animation: field-enter .55s ease-out both; }
  .case-file { animation: field-enter .55s .12s ease-out both; }
  @keyframes field-enter {
    from { opacity: 0; transform: translateY(1rem); }
    to { opacity: 1; transform: translateY(0); }
  }
}