:root {
  --coal: #121416;
  --steel: #20262a;
  --paper: #f3f0e8;
  --white: #fff;
  --ink: #172025;
  --muted: #657078;
  --line: #c8cbc7;
  --safety: #f6a800;
  --safety-dark: #ba6700;
  --oxide: #c8482d;
  --green: #2f6a56;
  --max: 1180px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--paper); color: var(--ink); font: 16px/1.55 Inter, Arial, sans-serif; }
a { color: inherit; }
button, input, select, textarea { font: inherit; }
.skip-link { position: fixed; left: -999px; top: 1rem; z-index: 100; background: white; padding: .8rem 1rem; }
.skip-link:focus { left: 1rem; }
.mock-bar { background: var(--safety); color: #211700; padding: .55rem 1rem; text-align: center; font-size: .74rem; font-weight: 900; letter-spacing: .09em; }

.site-header { min-height: 80px; background: rgba(18,20,22,.97); color: white; display: flex; align-items: center; gap: 2rem; padding: .75rem max(1.25rem, calc((100vw - var(--max)) / 2)); position: sticky; top: 0; z-index: 30; border-bottom: 1px solid #ffffff1f; }
.brand { display: flex; align-items: center; gap: .7rem; text-decoration: none; margin-right: auto; }
.brand-mark { width: 46px; height: 46px; display: grid; grid-template-columns: 1fr 1fr; overflow: hidden; transform: skew(-8deg); border: 1px solid #ffffff4d; }
.brand-mark i { display: grid; place-items: center; font-weight: 950; font-style: normal; transform: skew(8deg); }
.brand-mark i:first-child { background: var(--safety); color: var(--coal); }
.brand strong, .brand small { display: block; letter-spacing: .12em; line-height: 1.05; }
.brand small { color: #b7c0c5; font-size: .65rem; }
.site-header nav { display: flex; align-items: center; gap: 1.1rem; }
.site-header nav a { color: #dbe0e3; text-decoration: none; font-size: .82rem; font-weight: 700; }
.site-header nav a:hover, .site-header nav a:focus-visible { color: var(--safety); }
.site-header .nav-cta { border: 1px solid var(--safety); padding: .7rem .9rem; color: var(--safety); }
.nav-toggle { display: none; border: 1px solid #ffffff55; color: white; background: transparent; padding: .55rem .8rem; }

.hero { min-height: 760px; background: var(--coal); color: white; display: grid; grid-template-columns: 1.05fr .95fr; gap: 3rem; align-items: center; padding: 6.5rem max(1.25rem, calc((100vw - var(--max)) / 2)); position: relative; overflow: hidden; }
.hero-grid { position: absolute; inset: 0; opacity: .2; background-image: linear-gradient(#ffffff15 1px, transparent 1px), linear-gradient(90deg, #ffffff15 1px, transparent 1px); background-size: 44px 44px; mask-image: linear-gradient(90deg, #000, transparent 72%); }
.hero-copy, .hero-visual { position: relative; z-index: 1; }
.eyebrow { color: var(--safety); font-size: .73rem; font-weight: 900; letter-spacing: .15em; text-transform: uppercase; }
.eyebrow.dark { color: var(--safety-dark); }
h1 { margin: .5rem 0 1.6rem; font-size: clamp(4.6rem, 8.5vw, 8.6rem); letter-spacing: -.07em; line-height: .82; text-transform: uppercase; }
h1 em { color: var(--safety); font-style: normal; }
.hero-lead { color: #cad0d3; max-width: 650px; font-size: 1.17rem; }
.hero-actions { display: flex; flex-wrap: wrap; gap: .8rem; margin: 2rem 0 1.3rem; }
.button { display: inline-flex; justify-content: center; align-items: center; min-height: 46px; padding: .8rem 1.15rem; border: 1px solid transparent; text-decoration: none; font-weight: 850; cursor: pointer; }
.button-primary { background: var(--safety); color: #211700; }
.button-primary:hover, .button-primary:focus-visible { background: #ffc24c; }
.button-ghost { border-color: #ffffff66; color: white; }
.boundary { max-width: 600px; color: #90999e; font-size: .78rem; }
.hero-visual { min-height: 510px; border: 1px solid #ffffff2e; background: linear-gradient(145deg, #28313799, #0b0c0d); overflow: hidden; }
.frame-lines { position: absolute; inset: 8%; border: 1px solid #ffffff22; background: repeating-linear-gradient(90deg, transparent 0 72px, #ffffff14 73px 74px); }
.column { position: absolute; bottom: 18%; width: 15%; height: 58%; border: 2px solid #d8dde0; border-top: 9px solid var(--safety); }
.c1 { left: 19%; }.c2 { right: 19%; }
.beam { position: absolute; top: 24%; left: 14%; right: 14%; height: 9%; border: 2px solid #d8dde0; }
.slab { position: absolute; left: 10%; right: 10%; bottom: 11%; height: 9%; background: #59636a; transform: perspective(200px) rotateX(16deg); overflow: hidden; }
.slab span { display: block; width: 35%; height: 100%; background: var(--safety); animation: pour-fill 4s ease-in-out infinite alternate; }
.pour-line { position: absolute; top: 8%; left: 50%; width: 7px; height: 64%; background: var(--safety); box-shadow: 0 0 22px #f6a80055; transform-origin: top; animation: pour-sway 3.5s ease-in-out infinite alternate; }
.drawing-tag { position: absolute; bottom: 4%; right: 4%; border: 2px solid var(--oxide); color: #ff7a5f; padding: .55rem .7rem; font: 800 .72rem/1 ui-monospace, monospace; transform: rotate(-2deg); }
@keyframes pour-fill { to { width: 100%; } }
@keyframes pour-sway { to { transform: rotate(3deg); } }

.proof-strip { background: var(--safety); display: grid; grid-template-columns: repeat(4, 1fr); padding: 0 max(1.25rem, calc((100vw - var(--max)) / 2)); }
.proof-strip div { display: flex; gap: .75rem; align-items: center; padding: 1.2rem; border-right: 1px solid #2b1e0030; }
.proof-strip div:last-child { border: 0; }
.proof-strip b { font: 900 1.25rem/1 ui-monospace, monospace; }.proof-strip span { font-size: .82rem; font-weight: 800; text-transform: uppercase; }

.section { max-width: var(--max); margin: 0 auto; padding: 7rem 1.25rem; }
.section-heading { max-width: 780px; margin-bottom: 3rem; }
h2 { margin: .35rem 0 1.2rem; font-size: clamp(2.8rem, 6.2vw, 5.8rem); letter-spacing: -.06em; line-height: .92; text-transform: uppercase; }
.section-heading > p:last-child { color: var(--muted); font-size: 1.05rem; }
.service-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; align-items: stretch; }
.service-card { background: white; border: 1px solid var(--line); padding: 1.7rem; min-height: 390px; display: flex; flex-direction: column; }
.service-card.feature { background: var(--steel); color: white; transform: translateY(-1rem); }
.service-number { color: var(--safety-dark); font: 900 2.7rem/1 ui-monospace, monospace; }
.service-card.feature .service-number { color: var(--safety); }
.service-card h3 { font-size: 1.65rem; line-height: 1.05; margin: auto 0 .8rem; }
.service-card p { color: var(--muted); }.service-card.feature p { color: #b9c1c5; }
.service-card ul { padding-left: 1.1rem; margin-bottom: 0; font-size: .88rem; }

.method { background: var(--steel); color: white; padding: 7rem max(1.25rem, calc((100vw - var(--max)) / 2)); overflow: hidden; }
.method .section-heading { max-width: 900px; }
.method-track { list-style: none; padding: 0; margin: 4rem 0 2rem; display: grid; grid-template-columns: repeat(5, 1fr); position: relative; }
.method-track:before { content: ""; position: absolute; top: 26px; left: 5%; right: 5%; height: 2px; background: linear-gradient(90deg, var(--safety), #ffffff45); }
.method-track li { padding: 0 .75rem; position: relative; }
.method-track li span { width: 54px; height: 54px; border-radius: 50%; background: var(--safety); color: var(--coal); display: grid; place-items: center; font-weight: 950; position: relative; z-index: 1; margin-bottom: 1.1rem; }
.method-track b, .method-track small { display: block; }.method-track b { font-size: 1.15rem; }.method-track small { color: #aab3b8; }
.hold-point { border: 1px solid var(--safety); display: grid; grid-template-columns: 180px 1fr; gap: 1.5rem; align-items: center; padding: 1.4rem; margin-top: 3.5rem; }
.hold-point b { color: var(--safety); font: 950 1.1rem/1 ui-monospace, monospace; }.hold-point p { margin: 0; color: #d1d7da; }

.field .section-heading { max-width: 900px; }
.landscape { border-top: 4px solid var(--coal); }
.landscape-row { display: grid; grid-template-columns: 1fr 1.35fr 1.65fr; border-bottom: 1px solid var(--line); background: white; }
.landscape-row > span { padding: 1rem; border-right: 1px solid var(--line); }.landscape-row > span:last-child { border: 0; }
.landscape-row.head { background: var(--coal); color: white; font-size: .74rem; font-weight: 900; letter-spacing: .08em; text-transform: uppercase; }
.landscape-row.ours { background: #fff4d4; border-left: 5px solid var(--safety); }
.landscape-row small { display: block; color: var(--muted); }
.source-note { color: var(--muted); font-size: .8rem; }

.planner { background: var(--coal); color: white; padding: 7rem max(1.25rem, calc((100vw - var(--max)) / 2)); }
.planner .section-heading { max-width: 900px; }.planner .section-heading > p:last-child { color: #aeb7bc; }
.planner-grid { display: grid; grid-template-columns: .95fr 1.05fr; gap: 1px; background: #ffffff2e; border: 1px solid #ffffff2e; }
.calculator { background: var(--steel); padding: 2rem; }
.calculator label { display: flex; justify-content: space-between; align-items: center; gap: 1rem; border-bottom: 1px solid #ffffff1f; padding: .9rem 0; }
.calculator label span { display: flex; align-items: center; gap: .4rem; color: #aeb7bc; }
.calculator input { width: 105px; background: #0e1113; color: white; border: 1px solid #ffffff38; padding: .6rem; }
.calculator button { margin-top: 1.5rem; width: 100%; }
.result-panel { background: #0d0f10; padding: 2rem; display: grid; grid-template-columns: 1fr 1fr; gap: 1px; }
.result-panel > p, .result-panel > small { grid-column: 1 / -1; }.result-panel > p { color: #9ca6ab; text-transform: uppercase; letter-spacing: .1em; font-size: .72rem; }
.result-panel div { padding: 1.4rem; border: 1px solid #ffffff1c; }
.result-panel output, .result-panel span { display: block; }.result-panel output { color: white; font: 950 clamp(2.1rem, 4vw, 4.2rem)/1 ui-monospace, monospace; }.result-panel span { color: #8f999f; font-size: .75rem; margin-top: .4rem; }.result-panel .accent output { color: var(--safety); }
.result-panel small { color: #8f999f; margin-top: 1rem; }

.contract-console { display: grid; grid-template-columns: 220px 1fr; min-height: 410px; border: 1px solid var(--line); background: white; }
.contract-tabs { background: var(--coal); padding: 1rem 0; }
.contract-tabs button { display: block; width: 100%; border: 0; border-left: 4px solid transparent; background: transparent; color: #aeb6bb; padding: 1rem 1.2rem; text-align: left; font-weight: 800; cursor: pointer; }
.contract-tabs button[aria-selected="true"] { color: var(--coal); background: var(--safety); border-color: white; }
.contract-panel { padding: 3rem; }
.contract-panel h3 { font-size: clamp(2rem, 4vw, 3.8rem); max-width: 700px; line-height: .95; text-transform: uppercase; margin: .3rem 0 2rem; }
.contract-panel li { margin: .7rem 0; }.panel-code { color: var(--safety-dark); font: 900 .78rem/1 ui-monospace, monospace; }
.document-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); margin-top: 2rem; }
.document-grid article { background: var(--paper); padding: 1.4rem; min-height: 190px; }.document-grid article b { color: var(--safety-dark); font: 900 1.6rem/1 ui-monospace, monospace; }.document-grid article h3 { margin-top: 2.5rem; }.document-grid article p { color: var(--muted); font-size: .88rem; }
.pack-link { margin-top: 1.5rem; }

.issue-gate { background: var(--safety); padding: 7rem max(1.25rem, calc((100vw - var(--max)) / 2)); display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; }
.issue-gate .eyebrow { color: #6e3e00; }.issue-gate h2 { font-size: clamp(2.5rem, 4.8vw, 5rem); }
.gate-list p { display: grid; grid-template-columns: 42px 1fr; gap: 1rem; border-top: 1px solid #3725003d; padding: 1.1rem 0; margin: 0; }.gate-list span { font: 900 1rem/1 ui-monospace, monospace; }

.brief { background: var(--steel); color: white; padding: 7rem max(1.25rem, calc((100vw - var(--max)) / 2)); display: grid; grid-template-columns: .8fr 1.2fr; gap: 4rem; }
.brief-copy p:last-child { color: #b5bec2; }.brief-form { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }.brief-form label { display: grid; gap: .4rem; color: #bfc7cb; font-size: .82rem; }.brief-form .full { grid-column: 1 / -1; }.brief-form input, .brief-form select, .brief-form textarea { width: 100%; border: 1px solid #ffffff38; background: #111416; color: white; padding: .8rem; }.form-status { min-height: 1.5em; color: var(--safety); margin: .7rem 0 0; }

footer { background: #0b0c0d; color: #9ea7ac; padding: 3rem max(1.25rem, calc((100vw - var(--max)) / 2)); display: grid; grid-template-columns: .8fr 1.7fr auto; gap: 2rem; align-items: center; font-size: .78rem; }
.footer-brand { color: white; }

.reveal { opacity: 0; transform: translateY(20px); transition: opacity .55s ease, transform .55s ease; }
.reveal.visible { opacity: 1; transform: none; }
:focus-visible { outline: 3px solid var(--safety); outline-offset: 3px; }

@media (max-width: 960px) {
  .site-header { flex-wrap: wrap; }.nav-toggle { display: block; }.site-header nav { display: none; flex-basis: 100%; align-items: stretch; flex-direction: column; padding-bottom: 1rem; }.site-header nav.open { display: flex; }
  .hero { grid-template-columns: 1fr; }.hero-visual { min-height: 430px; }
  .service-grid { grid-template-columns: 1fr; }.service-card.feature { transform: none; }
  .method-track { grid-template-columns: 1fr; gap: 1rem; }.method-track:before { top: 0; bottom: 0; left: 26px; right: auto; width: 2px; height: auto; }.method-track li { display: grid; grid-template-columns: 54px 1fr; column-gap: 1rem; }.method-track li small { grid-column: 2; }.method-track li span { grid-row: 1 / 3; }
  .planner-grid, .issue-gate, .brief { grid-template-columns: 1fr; }.contract-console { grid-template-columns: 1fr; }.contract-tabs { display: flex; overflow-x: auto; }.contract-tabs button { width: auto; white-space: nowrap; border-left: 0; border-bottom: 4px solid transparent; }.contract-tabs button[aria-selected="true"] { border-color: white; }
}

@media (max-width: 780px) {
  h1 { font-size: clamp(3.6rem, 18vw, 6rem); }.hero { min-height: auto; padding-top: 4.5rem; }.proof-strip { grid-template-columns: 1fr 1fr; }.proof-strip div:nth-child(2) { border-right: 0; }
  .landscape-row { grid-template-columns: 1fr; }.landscape-row > span { border-right: 0; border-bottom: 1px dashed var(--line); }.landscape-row.head { display: none; }
  .document-grid { grid-template-columns: 1fr; }.result-panel { grid-template-columns: 1fr; }.hold-point { grid-template-columns: 1fr; }.brief-form { grid-template-columns: 1fr; }.brief-form .full { grid-column: auto; }
  footer { grid-template-columns: 1fr; }
}

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