/* BIM Unlimited LLC - site styles. Colors and type follow the brand guide
   (business/brand/20261106.guide.BIM-Unlimited-Brand-Guide.md). */

@font-face {
  font-family: "Inter";
  src: url("../fonts/Inter-Variable-latin.woff2") format("woff2");
  font-weight: 100 900;
  font-style: normal;
  font-display: swap;
}

:root {
  --navy: #0B2A5B;
  --blue: #1A5FD6;
  --deep: #134AA8;
  --sky: #7DB3FF;
  --steel: #566270;
  --mist: #DCE2E7;
  --paper: #F4F6F8;
  --white: #FFFFFF;
  --tint: #EAF1FC;
  --radius: 10px;
  --wrap: 1120px;
  --gutter: clamp(16px, 4vw, 32px);
}

*, *::before, *::after { 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;
  font-family: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  font-size: 17px;
  line-height: 1.55;
  color: var(--navy);
  background: var(--white);
  font-feature-settings: "cv11", "ss01";
}

img, svg { max-width: 100%; display: block; }
a { color: var(--blue); text-underline-offset: 3px; }
a:hover { color: var(--deep); }
:focus-visible { outline: 3px solid var(--blue); outline-offset: 3px; border-radius: 4px; }

.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 var(--gutter); }

.skip { position: absolute; left: -9999px; top: 8px; background: var(--navy); color: var(--white); padding: 8px 14px; border-radius: 6px; z-index: 100; }
.skip:focus { left: 8px; }

/* ---------- Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: saturate(160%) blur(8px);
  border-bottom: 1px solid var(--mist);
}
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; gap: 24px; height: 68px; }
.brand img { height: 26px; width: auto; }
.nav { display: flex; align-items: center; gap: 28px; }
.nav a { color: var(--navy); text-decoration: none; font-weight: 500; font-size: 15px; }
.nav a:hover { color: var(--blue); }
.nav .btn { color: var(--white); }
@media (max-width: 860px) {
  .nav a:not(.btn) { display: none; }
}
.nav .btn { white-space: nowrap; }
@media (max-width: 420px) {
  .site-header .wrap { height: 60px; }
  .brand img { height: 22px; }
  .nav .btn { padding: 8px 14px; font-size: 14px; }
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--blue); color: var(--white);
  font-weight: 600; font-size: 15px; text-decoration: none;
  padding: 11px 20px; border-radius: 8px; border: 2px solid var(--blue);
  transition: background 0.15s, border-color 0.15s;
}
.btn:hover { background: var(--deep); border-color: var(--deep); color: var(--white); }
.btn.ghost { background: transparent; color: var(--navy); border-color: var(--mist); }
.btn.ghost:hover { border-color: var(--navy); color: var(--navy); background: transparent; }
.btn.light { background: var(--white); color: var(--navy); border-color: var(--white); }
.btn.light:hover { background: var(--tint); border-color: var(--tint); color: var(--navy); }

/* ---------- Type helpers ---------- */
.label {
  display: inline-block; font-size: 13px; font-weight: 600; letter-spacing: 0.14em;
  text-transform: uppercase; color: var(--deep); margin: 0 0 14px;
}
h1, h2, h3 { font-weight: 600; letter-spacing: -0.015em; margin: 0; }
h1 { font-size: clamp(36px, 5.4vw, 56px); line-height: 1.08; }
h2 { font-size: clamp(28px, 3.4vw, 36px); line-height: 1.18; }
h3 { font-size: 20px; line-height: 1.3; }
.lead { font-size: clamp(18px, 2vw, 20px); color: var(--steel); max-width: 40em; }
.muted { color: var(--steel); }

section { padding: clamp(64px, 9vw, 104px) 0; }
.section-head { max-width: 720px; margin-bottom: 44px; }
.section-head p { color: var(--steel); margin: 14px 0 0; font-size: 18px; }

/* ---------- Hero ---------- */
.hero { padding-top: clamp(56px, 8vw, 96px); padding-bottom: clamp(56px, 8vw, 96px); background: linear-gradient(180deg, var(--white) 0%, var(--paper) 100%); }
.hero .wrap { display: grid; grid-template-columns: 1.15fr 0.85fr; gap: 56px; align-items: center; }
.hero h1 .accent { color: var(--blue); }
.hero .lead { margin: 22px 0 32px; }
.hero .actions { display: flex; flex-wrap: wrap; gap: 12px; }
@media (max-width: 900px) { .hero .wrap { grid-template-columns: 1fr; gap: 44px; } }

/* Phase diagram in the hero */
.phases {
  list-style: none; margin: 0; padding: 0;
  display: grid; gap: 14px; position: relative;
}
.phases::before {
  content: ""; position: absolute; left: 31px; top: 32px; bottom: 32px;
  width: 2px; background: linear-gradient(var(--blue), var(--sky));
}
.phases li {
  position: relative; display: flex; align-items: center; gap: 18px;
  background: var(--white); border: 1px solid var(--mist); border-radius: var(--radius);
  padding: 16px 20px 16px 16px; box-shadow: 0 1px 2px rgba(11, 42, 91, 0.05);
}
.phases .tile {
  flex: none; width: 32px; height: 32px; border-radius: 8px;
  display: grid; place-items: center; color: var(--white); font-weight: 700; font-size: 15px;
  position: relative; z-index: 1;
}
.phases li:nth-child(1) .tile { background: var(--navy); }
.phases li:nth-child(2) .tile { background: var(--deep); }
.phases li:nth-child(3) .tile { background: var(--blue); }
.phases strong { display: block; font-size: 17px; }
.phases span.sub { display: block; font-size: 14px; color: var(--steel); }
.model-note {
  margin-top: 14px; display: flex; align-items: center; gap: 10px;
  font-size: 14px; color: var(--deep); font-weight: 500;
}
.model-note::before { content: ""; width: 10px; height: 10px; border-radius: 3px; background: var(--blue); }

/* ---------- Service cards ---------- */
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
@media (max-width: 960px) { .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px) { .grid-3, .grid-4 { grid-template-columns: 1fr; } }

.card {
  background: var(--white); border: 1px solid var(--mist); border-radius: var(--radius);
  padding: 28px;
}
.card .phase-tag {
  display: inline-flex; align-items: center; gap: 10px; font-size: 13px; font-weight: 600;
  letter-spacing: 0.12em; text-transform: uppercase; color: var(--deep); margin-bottom: 12px;
}
.card .phase-tag i { width: 12px; height: 12px; border-radius: 3px; background: var(--blue); }
.card h3 { margin-bottom: 10px; }
.card p { margin: 0 0 16px; color: var(--steel); }
.card ul { margin: 0; padding: 0; list-style: none; }
.card li { position: relative; padding: 9px 0 9px 22px; border-top: 1px solid var(--paper); font-size: 16px; }
.card li::before { content: ""; position: absolute; left: 0; top: 17px; width: 8px; height: 8px; border-radius: 2px; background: var(--blue); }

.bg-paper { background: var(--paper); }
.bg-paper .card { border-color: transparent; box-shadow: 0 1px 2px rgba(11, 42, 91, 0.06); }

.audience .card h3 { display: flex; align-items: center; gap: 12px; }
.audience .icon { width: 36px; height: 36px; border-radius: 9px; background: var(--tint); display: grid; place-items: center; flex: none; }
.audience .icon svg { width: 20px; height: 20px; stroke: var(--blue); fill: none; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.audience .card p { margin: 12px 0 0; }

/* ---------- Why ---------- */
.why { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 56px; align-items: start; }
@media (max-width: 900px) { .why { grid-template-columns: 1fr; gap: 32px; } }
.points { display: grid; gap: 26px; }
.point { display: grid; grid-template-columns: 44px 1fr; gap: 16px; }
.point .num { width: 44px; height: 44px; border-radius: 10px; background: var(--navy); color: var(--white); display: grid; place-items: center; font-weight: 700; }
.point h3 { font-size: 19px; margin: 2px 0 6px; }
.point p { margin: 0; color: var(--steel); }

/* ---------- Steps ---------- */
.steps { counter-reset: step; display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; list-style: none; padding: 0; margin: 0; }
@media (max-width: 960px) { .steps { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px) { .steps { grid-template-columns: 1fr; } }
.steps li { counter-increment: step; border-top: 3px solid var(--blue); padding-top: 18px; }
.steps li::before { content: "0" counter(step); display: block; font-size: 14px; font-weight: 600; letter-spacing: 0.1em; color: var(--deep); margin-bottom: 8px; }
.steps h3 { font-size: 19px; margin-bottom: 8px; }
.steps p { margin: 0; color: var(--steel); }

/* ---------- Tools strip ---------- */
.tools { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 36px; }
.tools span { border: 1px solid var(--mist); border-radius: 999px; padding: 7px 14px; font-size: 14px; font-weight: 500; color: var(--navy); background: var(--white); }

/* ---------- About ---------- */
.about { display: grid; grid-template-columns: 0.8fr 1.2fr; gap: 56px; align-items: center; }
@media (max-width: 900px) { .about { grid-template-columns: 1fr; gap: 28px; } }
.about-card { background: var(--navy); color: var(--white); border-radius: 14px; padding: 36px; }
.about-card .mono { width: 64px; height: 64px; border-radius: 14px; background: var(--blue); display: grid; place-items: center; font-weight: 700; font-size: 24px; margin-bottom: 22px; }
.about-card h3 { font-size: 24px; }
.about-card p { color: var(--mist); margin: 6px 0 0; }
.about-card dl { margin: 24px 0 0; display: grid; gap: 12px; }
.about-card dt { font-size: 12px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--sky); font-weight: 600; }
.about-card dd { margin: 2px 0 0; }
.about p { font-size: 18px; }

/* ---------- Contact band ---------- */
.contact { background: var(--navy); color: var(--white); }
.contact .wrap { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 48px; align-items: center; }
@media (max-width: 900px) { .contact .wrap { grid-template-columns: 1fr; } }
.contact .label { color: var(--sky); }
.contact h2 { color: var(--white); }
.contact p { color: var(--mist); font-size: 18px; }
.contact-list { display: grid; gap: 14px; }
.contact-item { display: block; background: rgba(255, 255, 255, 0.06); border: 1px solid rgba(255, 255, 255, 0.14); border-radius: var(--radius); padding: 18px 22px; color: var(--white); text-decoration: none; }
a.contact-item:hover { background: rgba(255, 255, 255, 0.1); color: var(--white); }
.contact-item small { display: block; font-size: 12px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--sky); font-weight: 600; margin-bottom: 4px; }
.contact-item span { font-size: 19px; font-weight: 600; }

/* ---------- Footer ---------- */
.site-footer { background: #081F45; color: var(--mist); padding: 40px 0; font-size: 14px; }
.site-footer .wrap { display: flex; flex-wrap: wrap; gap: 20px 40px; align-items: center; justify-content: space-between; }
.site-footer img { height: 22px; width: auto; }
.site-footer nav { display: flex; gap: 22px; }
.site-footer a { color: var(--mist); }
.site-footer a:hover { color: var(--white); }
.site-footer .fine { flex-basis: 100%; color: #9AA8B8; font-size: 13px; margin: 0; border-top: 1px solid rgba(255, 255, 255, 0.1); padding-top: 18px; }

/* ---------- Legal pages ---------- */
.legal { padding: 56px 0 88px; }
.legal .wrap { max-width: 760px; }
.legal h1 { font-size: clamp(32px, 4vw, 42px); margin-bottom: 8px; }
.legal h2 { font-size: 22px; margin: 36px 0 10px; }
.legal p, .legal li { color: #2B3A4E; }
.legal ul { padding-left: 22px; }
.legal .updated { color: var(--steel); margin: 0 0 28px; }