/* =================================================================
   Universal Construction Solutions, LLC
   Dark industrial + amber — single landing page
   Independent design system (u- vocabulary)
   ================================================================= */

:root {
  --ink: #111316;          /* near-black base */
  --ink-2: #16191d;
  --panel: #191c20;        /* raised dark panel */
  --panel-2: #21252b;
  --amber: #f5a11e;
  --amber-2: #ffb43d;
  --amber-dk: #d98708;
  --steel: #8a929c;        /* muted text on dark */
  --steel-2: #aab2bc;
  --paper: #f4f5f6;        /* light text */
  --line: rgba(255, 255, 255, .09);
  --line-2: rgba(255, 255, 255, .16);

  --display: "Oswald", "Arial Narrow", system-ui, sans-serif;
  --body: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
  --shell: 1200px;
  --notch: 14px;           /* corner-notch size */
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--body);
  background: var(--ink);
  color: var(--paper);
  font-size: 17px;
  line-height: 1.65;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
img { display: block; max-width: 100%; height: auto; }
a { color: var(--amber-2); text-decoration: none; }

h1, h2, h3, h4 {
  font-family: var(--display);
  font-weight: 600;
  line-height: 1.05;
  margin: 0 0 .5em;
  letter-spacing: .01em;
  text-transform: uppercase;
}
h1 { font-size: clamp(2.4rem, 6vw, 4.4rem); }
h2 { font-size: clamp(1.8rem, 3.8vw, 3rem); }
h3 { font-size: 1.28rem; letter-spacing: .02em; }
p { margin: 0 0 1rem; }

.u-shell { width: min(100% - 2.6rem, var(--shell)); margin-inline: auto; }
/* grid children must be allowed to shrink below content size to avoid overflow */
.u-feat__row > *, .u-area__row > *, .u-cta__row > *, .u-foot__grid > * { min-width: 0; }
.u-foot address a, .u-foot address { overflow-wrap: anywhere; }
.u-section { padding: clamp(3.6rem, 7.5vw, 6.5rem) 0; }
.u-amber { color: var(--amber); }

.u-skip { position: absolute; left: -999px; top: 0; background: var(--amber); color: #1a1204; padding: .6rem 1rem; z-index: 400; font-weight: 600; }
.u-skip:focus { left: 1rem; top: 1rem; }

/* ---------- section headers / tags ---------- */
.u-tag {
  font-family: var(--display); font-weight: 600; text-transform: uppercase;
  letter-spacing: .28em; font-size: .82rem; color: var(--steel);
  margin: 0 0 1rem; display: flex; align-items: center; gap: .6rem;
}
.u-tag span { color: var(--amber); font-size: 1rem; letter-spacing: .1em; }
.u-tag--light { color: rgba(26,18,4,.6); }
.u-tag--light span { color: var(--amber-dk); }
.u-head { max-width: 640px; margin: 0 0 clamp(2.2rem, 4vw, 3.2rem); }
.u-head h2 { color: var(--paper); }
.u-head__lead { color: var(--steel-2); font-size: 1.08rem; max-width: 56ch; }

/* ---------- buttons ---------- */
.u-btn {
  --clip: polygon(var(--notch) 0, 100% 0, 100% calc(100% - var(--notch)), calc(100% - var(--notch)) 100%, 0 100%, 0 var(--notch));
  display: inline-flex; align-items: center; justify-content: center; gap: .55rem;
  font-family: var(--display); font-weight: 600; text-transform: uppercase; letter-spacing: .06em;
  font-size: .95rem; padding: .85rem 1.6rem; cursor: pointer; border: 0;
  clip-path: var(--clip); transition: transform .16s ease, background .16s ease, color .16s ease;
  white-space: nowrap;
}
.u-btn--lg { padding: 1.05rem 2rem; font-size: 1.05rem; }
.u-btn--block { display: flex; width: 100%; }
.u-btn--amber { background: var(--amber); color: #1a1204; }
.u-btn--amber:hover { background: var(--amber-2); transform: translateY(-2px); }
.u-btn--ghost { background: rgba(255,255,255,.06); color: var(--paper); box-shadow: inset 0 0 0 1.5px var(--line-2); }
.u-btn--ghost:hover { background: rgba(255,255,255,.12); transform: translateY(-2px); }
.u-btn--outline { background: transparent; color: #1a1204; box-shadow: inset 0 0 0 2px rgba(26,18,4,.4); }
.u-btn--outline:hover { background: rgba(26,18,4,.08); transform: translateY(-2px); }

/* ---------- header ---------- */
.u-hdr {
  position: sticky; top: 0; z-index: 200;
  background: rgba(17,19,22,.82); backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.u-hdr__row { display: flex; align-items: center; gap: 1.4rem; min-height: 74px; }
.u-brand { display: inline-flex; align-items: center; gap: .65rem; color: var(--paper); }
.u-brand__mark { display: grid; place-items: center; width: 44px; height: 44px; background: var(--amber); color: var(--amber); clip-path: polygon(10px 0,100% 0,100% calc(100% - 10px),calc(100% - 10px) 100%,0 100%,0 10px); }
.u-brand__mark svg { display: block; }
.u-brand__name { font-family: var(--display); font-weight: 700; text-transform: uppercase; font-size: 1.18rem; line-height: .98; letter-spacing: .02em; display: flex; flex-direction: column; }
.u-brand__sub { font-size: .62rem; font-weight: 500; letter-spacing: .26em; color: var(--steel); }

.u-nav { margin-left: auto; }
.u-nav ul { list-style: none; display: flex; gap: 1.7rem; margin: 0; padding: 0; }
.u-nav a { font-family: var(--display); text-transform: uppercase; letter-spacing: .08em; font-size: .95rem; color: var(--steel-2); }
.u-nav a:hover { color: var(--amber); }
.u-hdr__cta { font-size: .9rem; padding: .7rem 1.15rem; }

.u-burger { display: none; background: none; border: 0; width: 44px; height: 44px; padding: 10px; cursor: pointer; }
.u-burger span { display: block; height: 2.5px; background: var(--paper); margin: 4.5px 0; transition: .25s; }
.u-burger[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.u-burger[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.u-burger[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- blueprint grid motif ---------- */
.u-hero__grid, .u-cta__grid {
  position: absolute; inset: 0; pointer-events: none;
  background-image:
    linear-gradient(var(--gl) 1px, transparent 1px),
    linear-gradient(90deg, var(--gl) 1px, transparent 1px);
  background-size: 46px 46px;
  mask-image: radial-gradient(ellipse at 30% 30%, #000 30%, transparent 78%);
}
.u-hero__grid { --gl: rgba(255,255,255,.05); }
.u-cta__grid { --gl: rgba(26,18,4,.10); }

/* ---------- hero ---------- */
.u-hero { position: relative; overflow: hidden; background: var(--ink); border-bottom: 1px solid var(--line); }
.u-hero__bg { position: absolute; inset: 0; }
.u-hero__bg img { width: 100%; height: 100%; object-fit: cover; }
.u-hero::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(90deg, rgba(17,19,22,.97) 0%, rgba(17,19,22,.88) 42%, rgba(17,19,22,.55) 100%),
              linear-gradient(0deg, rgba(17,19,22,.9), rgba(17,19,22,.2));
}
.u-hero__inner { position: relative; z-index: 2; padding: clamp(3.5rem, 9vw, 7.5rem) 0 clamp(3rem, 6vw, 5rem); max-width: 760px; }
.u-eyebrow { display: inline-flex; align-items: center; gap: .7rem; font-family: var(--display); text-transform: uppercase; letter-spacing: .18em; font-size: .82rem; color: var(--steel-2); margin: 0 0 1.4rem; }
.u-eyebrow__bar { width: 30px; height: 3px; background: var(--amber); }
.u-hero__title { color: var(--paper); margin-bottom: 1.2rem; }
.u-hero__lead { color: var(--steel-2); font-size: 1.16rem; max-width: 54ch; margin-bottom: 2rem; }
.u-hero__actions { display: flex; flex-wrap: wrap; gap: .9rem; margin-bottom: 2.2rem; }
.u-chips { list-style: none; display: flex; flex-wrap: wrap; gap: .55rem; margin: 0; padding: 0; }
.u-chips li {
  font-family: var(--display); text-transform: uppercase; letter-spacing: .06em; font-size: .8rem;
  color: var(--steel-2); padding: .42rem .85rem; background: rgba(255,255,255,.05);
  border: 1px solid var(--line); border-left: 3px solid var(--amber);
}

/* ---------- services ---------- */
.u-svc { background: var(--ink); }
.u-svc__grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.1rem; }
.u-card {
  --clip: polygon(var(--notch) 0, 100% 0, 100% 100%, 0 100%, 0 var(--notch));
  background: var(--panel); border: 1px solid var(--line); clip-path: var(--clip);
  padding: 2rem 1.7rem 1.8rem; position: relative; transition: transform .18s ease, border-color .18s ease, background .18s ease;
}
.u-card::before { content: ""; position: absolute; top: 0; left: 0; width: 34px; height: 3px; background: var(--amber); }
.u-card:hover { transform: translateY(-4px); border-color: var(--line-2); background: var(--panel-2); }
.u-card__ico { display: inline-grid; place-items: center; width: 52px; height: 52px; color: var(--amber); background: rgba(245,161,30,.1); margin-bottom: 1.1rem; }
.u-card h3 { color: var(--paper); margin-bottom: .45rem; }
.u-card p { color: var(--steel-2); font-size: .98rem; margin: 0; }

/* full-width solar highlight card */
.u-card--solar {
  grid-column: 1 / -1;
  display: flex; align-items: center; gap: 1.8rem;
  background: linear-gradient(120deg, rgba(245,161,30,.14), rgba(245,161,30,.04) 60%, var(--panel));
  border-color: rgba(245,161,30,.35); padding: 2rem 2.2rem;
}
.u-card--solar::before { width: 100%; }
.u-card__ico--solar { width: 62px; height: 62px; flex: 0 0 auto; background: rgba(245,161,30,.16); }
.u-card__solarbody { flex: 1 1 auto; }
.u-card__solarbody h3 { margin-bottom: .35rem; }
.u-card__solarbody p { max-width: 68ch; }
.u-card__solarcta { flex: 0 0 auto; }
.u-btn--dark { background: var(--ink); color: var(--amber); box-shadow: inset 0 0 0 1.5px rgba(245,161,30,.55); }
.u-btn--dark:hover { background: #000; transform: translateY(-2px); }

/* ---------- feature / why us ---------- */
.u-feat { background: var(--ink-2); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.u-feat__row { display: grid; grid-template-columns: .95fr 1.05fr; gap: clamp(2rem, 5vw, 4.5rem); align-items: center; }
.u-feat__media { position: relative; }
.u-feat__media img { width: 100%; aspect-ratio: 4 / 4.4; object-fit: cover; clip-path: polygon(24px 0,100% 0,100% calc(100% - 24px),calc(100% - 24px) 100%,0 100%,0 24px); }
.u-feat__media::before { content: ""; position: absolute; inset: -14px -14px auto auto; width: 62%; height: 62%; border: 2px solid var(--amber); z-index: -1; }
.u-feat__badge {
  position: absolute; left: -10px; bottom: 22px; background: var(--amber); color: #1a1204;
  font-family: var(--display); text-transform: uppercase; letter-spacing: .08em; font-weight: 600;
  font-size: .82rem; padding: .55rem 1rem; clip-path: polygon(0 0,100% 0,calc(100% - 10px) 100%,0 100%);
}
.u-feat__body h2 { color: var(--paper); }
.u-feat__body p { color: var(--steel-2); }
.u-ticks { list-style: none; margin: 1.4rem 0 1.8rem; padding: 0; }
.u-ticks li { position: relative; padding-left: 1.9rem; margin-bottom: .7rem; color: var(--paper); }
.u-ticks li::before {
  content: ""; position: absolute; left: 0; top: .36em; width: 15px; height: 9px;
  border-left: 2.5px solid var(--amber); border-bottom: 2.5px solid var(--amber); transform: rotate(-45deg);
}

/* ---------- solar ---------- */
.u-solar { position: relative; overflow: hidden; background: linear-gradient(180deg, var(--ink-2), var(--ink)); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.u-solar__glow { position: absolute; top: -35%; right: -12%; width: 65%; height: 130%; pointer-events: none; background: radial-gradient(circle, rgba(245,161,30,.16), transparent 62%); }
.u-solar__row { position: relative; z-index: 2; display: grid; grid-template-columns: 1.1fr .9fr; gap: clamp(2rem, 5vw, 4.5rem); align-items: center; }
.u-solar__body h2 { color: var(--paper); }
.u-solar__body > p { color: var(--steel-2); max-width: 56ch; }
.u-solar__body .u-ticks { margin: 1.4rem 0 1.8rem; }
.u-solar__actions { display: flex; flex-wrap: wrap; gap: .9rem; }
.u-solar__art { display: grid; place-items: center; }
.u-solar__art svg { width: 100%; max-width: 420px; height: auto; }
.u-solar__stats { position: relative; z-index: 2; width: min(100% - 2.6rem, var(--shell)); margin: clamp(2.2rem, 4vw, 3.2rem) auto 0; display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); }
.u-solar__stat { background: var(--ink); padding: 1.5rem 1rem; text-align: center; }
.u-solar__stat b { display: block; font-family: var(--display); font-weight: 700; font-size: clamp(1.6rem, 3.2vw, 2.1rem); color: var(--amber); line-height: 1; margin-bottom: .35rem; }
.u-solar__stat span { font-family: var(--display); text-transform: uppercase; letter-spacing: .1em; font-size: .74rem; color: var(--steel-2); }

/* ---------- projects ---------- */
.u-proj { background: var(--ink); }
.u-proj__grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem; }
.u-proj__item { position: relative; margin: 0; overflow: hidden; aspect-ratio: 4 / 3; }
.u-proj__item img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease; }
.u-proj__item figcaption {
  position: absolute; left: 0; bottom: 0; right: 0; padding: 1.4rem 1rem .85rem;
  font-family: var(--display); text-transform: uppercase; letter-spacing: .1em; font-size: .82rem;
  color: var(--paper); background: linear-gradient(0deg, rgba(17,19,22,.9), transparent);
  border-bottom: 3px solid var(--amber); opacity: 0; transform: translateY(6px); transition: .25s;
}
.u-proj__item:hover img { transform: scale(1.06); }
.u-proj__item:hover figcaption { opacity: 1; transform: translateY(0); }

/* ---------- stats ---------- */
.u-stats { background: var(--amber); color: #1a1204; }
.u-stats__row { display: grid; grid-template-columns: repeat(4, 1fr); }
.u-stat { padding: clamp(2.2rem, 4vw, 3rem) 1rem; text-align: center; border-left: 1px solid rgba(26,18,4,.18); }
.u-stat:first-child { border-left: 0; }
.u-stat__num { display: block; font-family: var(--display); font-weight: 700; font-size: clamp(2.4rem, 5vw, 3.4rem); line-height: 1; }
.u-stat__num .u-amber { color: #1a1204; }
.u-stat__lbl { font-family: var(--display); text-transform: uppercase; letter-spacing: .12em; font-size: .82rem; color: rgba(26,18,4,.8); }

/* ---------- service area ---------- */
.u-area { background: var(--ink-2); border-top: 1px solid var(--line); }
.u-area__row { display: block; }
.u-area__body { max-width: 760px; }
.u-area__body h2 { color: var(--paper); }
.u-area__body p { color: var(--steel-2); }
.u-pills { list-style: none; display: flex; flex-wrap: wrap; gap: .6rem; margin: 1.5rem 0 0; padding: 0; }
.u-pills li { font-family: var(--display); text-transform: uppercase; letter-spacing: .05em; font-size: .85rem; color: var(--steel-2); padding: .5rem 1rem; border: 1px solid var(--line-2); }

/* ---------- cta ---------- */
.u-cta { position: relative; overflow: hidden; background: var(--amber); color: #1a1204; padding: clamp(3rem, 6vw, 4.5rem) 0; }
.u-cta__row { position: relative; z-index: 2; display: grid; grid-template-columns: 1.2fr .8fr; gap: 2rem; align-items: center; }
.u-cta h2 { color: #1a1204; margin-bottom: .4rem; }
.u-cta p { color: rgba(26,18,4,.82); margin: 0; max-width: 46ch; }
.u-cta__actions { display: flex; flex-wrap: wrap; gap: .9rem; justify-content: flex-end; }

/* ---------- footer ---------- */
.u-foot { background: #0d0f11; border-top: 1px solid var(--line); padding: clamp(2.8rem, 5vw, 4rem) 0 1.6rem; }
.u-foot__grid { display: grid; grid-template-columns: 1.7fr 1fr 1fr 1.3fr; gap: 2rem; }
.u-brand--foot .u-brand__name { color: var(--paper); }
.u-foot__brand p { color: var(--steel); font-size: .95rem; margin-top: 1rem; max-width: 34ch; }
.u-foot__col h4 { font-size: .82rem; letter-spacing: .18em; color: var(--amber); margin-bottom: 1rem; }
.u-foot__col ul { list-style: none; margin: 0; padding: 0; }
.u-foot__col li { margin-bottom: .55rem; }
.u-foot__col a { color: var(--steel-2); font-size: .96rem; }
.u-foot__col a:hover { color: var(--amber); }
.u-foot address { font-style: normal; color: var(--steel-2); font-size: .96rem; line-height: 1.8; }
.u-foot address a { color: var(--steel-2); }
.u-foot address a:hover { color: var(--amber); }
.u-foot__bottom { display: flex; justify-content: space-between; flex-wrap: wrap; gap: .5rem; margin-top: 2.4rem; padding-top: 1.4rem; border-top: 1px solid var(--line); }
.u-foot__bottom p { color: var(--steel); font-size: .85rem; margin: 0; }

/* ---------- responsive ---------- */
@media (max-width: 940px) {
  .u-svc__grid { grid-template-columns: repeat(2, 1fr); }
  .u-feat__row { grid-template-columns: 1fr; }
  .u-feat__media { max-width: 460px; }
  .u-solar__row { grid-template-columns: 1fr; }
  .u-solar__art { order: -1; }
  .u-solar__art svg { max-width: 320px; }
  .u-cta__row { grid-template-columns: 1fr; }
  .u-cta__actions { justify-content: flex-start; }
  .u-foot__grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 820px) {
  .u-nav, .u-hdr__cta { display: none; }
  .u-burger { display: block; margin-left: auto; }
  .u-nav.is-open {
    display: block; position: absolute; top: 100%; left: 0; right: 0;
    background: var(--ink); border-bottom: 1px solid var(--line); padding: .5rem 0 1rem;
  }
  .u-nav.is-open ul { flex-direction: column; gap: 0; width: min(100% - 2.6rem, var(--shell)); margin-inline: auto; }
  .u-nav.is-open a { display: block; padding: .9rem 0; border-bottom: 1px solid var(--line); font-size: 1.05rem; }
  .u-proj__grid { grid-template-columns: repeat(2, 1fr); }
  .u-stats__row { grid-template-columns: repeat(2, 1fr); }
  .u-stat:nth-child(-n+2) { border-bottom: 1px solid rgba(26,18,4,.18); }
  .u-stat:nth-child(odd) { border-left: 0; }
  .u-solar__stats { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 680px) {
  .u-card--solar { flex-direction: column; align-items: flex-start; gap: 1.1rem; padding: 1.8rem 1.7rem; }
}
@media (max-width: 520px) {
  .u-svc__grid { grid-template-columns: 1fr; }
  .u-proj__grid { grid-template-columns: 1fr; }
  .u-proj__item { aspect-ratio: 3 / 2; }
  .u-foot__grid { grid-template-columns: 1fr; }
  .u-proj__item figcaption { opacity: 1; transform: none; }
}

@media (prefers-reduced-motion: reduce) {
  * { scroll-behavior: auto; }
  .u-btn, .u-card, .u-proj__item img { transition: none; }
}