/* ============================================================
   NorthEast SIPs — nesips.com
   Design tokens: construction drawing-set aesthetic
   ============================================================ */

:root {
  --paper: #fafaf8;        /* sheet background */
  --graphite: #23282d;     /* headings, footer */
  --ink: #3a4046;          /* body text */
  --osb: #c6934b;          /* OSB amber accent */
  --blueprint: #1e4f8f;    /* blueprint blue accent */
  --foam: #f1efe9;         /* panel core / soft fill */
  --line: #dcdfe2;         /* hairline rules */

  --font-display: "Barlow Condensed", "Arial Narrow", sans-serif;
  --font-body: "Barlow", "Helvetica Neue", Arial, sans-serif;
  --font-mono: "IBM Plex Mono", "Courier New", monospace;

  --max-w: 1080px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
}

body {
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.6;
  color: var(--ink);
  background: var(--paper);
}

img { max-width: 100%; display: block; }

a { color: var(--blueprint); }
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible {
  outline: 2px solid var(--blueprint);
  outline-offset: 2px;
}

.wrap {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 1.25rem;
}

/* ---------- Header ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--paper);
  border-bottom: 2px solid var(--graphite);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.85rem 1.25rem;
  max-width: var(--max-w);
  margin: 0 auto;
}

.logo {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.6rem;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  color: var(--graphite);
  text-decoration: none;
  line-height: 1;
}

.logo .logo-east { color: var(--osb); }

.site-nav { display: flex; align-items: center; gap: 1.4rem; flex-wrap: wrap; }

.site-nav a {
  font-family: var(--font-display);
  font-size: 1.05rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--graphite);
}

.site-nav a:hover { color: var(--blueprint); }

.nav-phone {
  font-family: var(--font-mono);
  font-size: 0.95rem;
  color: var(--paper) !important;
  background: var(--blueprint);
  padding: 0.45rem 0.8rem;
  letter-spacing: 0.02em;
}

.nav-phone:hover { background: var(--graphite); color: var(--paper); }

/* ---------- Hero ---------- */

.hero { padding: 4rem 0 3rem; border-bottom: 1px solid var(--line); }

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 3rem;
  align-items: center;
}

.hero h1 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(2.4rem, 5vw, 3.6rem);
  line-height: 1.05;
  text-transform: uppercase;
  color: var(--graphite);
}

.hero h1 em {
  font-style: normal;
  color: var(--blueprint);
}

.hero-sub { margin-top: 1.25rem; font-size: 1.15rem; max-width: 32rem; }

.hero-cta { margin-top: 2rem; display: flex; gap: 1rem; flex-wrap: wrap; }

.btn {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 1.1rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  text-decoration: none;
  padding: 0.75rem 1.5rem;
  border: 2px solid var(--graphite);
  color: var(--graphite);
  background: transparent;
  cursor: pointer;
}

.btn:hover { background: var(--graphite); color: var(--paper); }

.btn-primary { background: var(--blueprint); border-color: var(--blueprint); color: var(--paper); }
.btn-primary:hover { background: var(--graphite); border-color: var(--graphite); }

.panel-figure { width: 100%; }
.panel-figure svg { width: 100%; height: auto; }

/* ---------- Sheet-label section headers ---------- */

.sheet-section { padding: 3.5rem 0; border-bottom: 1px solid var(--line); }

.sheet-label {
  display: flex;
  align-items: baseline;
  gap: 1rem;
  margin-bottom: 1.75rem;
}

.sheet-no {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  letter-spacing: 0.1em;
  color: var(--blueprint);
  white-space: nowrap;
}

.sheet-label h2 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.9rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--graphite);
}

.sheet-label::after {
  content: "";
  flex: 1;
  border-bottom: 1px solid var(--graphite);
  transform: translateY(-0.35rem);
}

/* ---------- Content patterns ---------- */

.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2.5rem;
  align-items: start;
}

.spec-list { list-style: none; }

.spec-list li {
  padding: 0.9rem 0 0.9rem 1.6rem;
  border-bottom: 1px solid var(--line);
  position: relative;
}

.spec-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 1.45rem;
  width: 0.8rem;
  height: 2px;
  background: var(--osb);
}

.stat-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  margin-top: 2rem;
}

.stat {
  background: var(--paper);
  padding: 1.25rem 1rem;
  text-align: center;
}

.stat b {
  display: block;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 2rem;
  color: var(--blueprint);
  line-height: 1.1;
}

.stat span {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

/* ---------- Project cards ---------- */

.project-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 1.75rem;
}

.project-card {
  border: 1px solid var(--line);
  background: #fff;
  text-decoration: none;
  color: var(--ink);
  display: flex;
  flex-direction: column;
}

.project-card img { aspect-ratio: 4 / 3; object-fit: cover; width: 100%; }

.project-card .card-body { padding: 1rem 1.1rem 1.25rem; }

.project-card h3 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.25rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--graphite);
}

.project-card p { margin-top: 0.4rem; font-size: 0.95rem; }

.project-card:hover { border-color: var(--blueprint); }
.project-card:hover h3 { color: var(--blueprint); }

/* ---------- News ---------- */

.news-list { list-style: none; }

.news-list li {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1.25rem;
  padding: 1.1rem 0;
  border-bottom: 1px solid var(--line);
  align-items: baseline;
}

.news-list .sheet-no { font-size: 0.8rem; }

/* ---------- Contact ---------- */

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 3rem;
}

.contact-info p { margin-bottom: 0.9rem; }

.contact-info .mono {
  font-family: var(--font-mono);
  font-size: 0.95rem;
}

.form-row { margin-bottom: 1.1rem; }

.form-row label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 0.35rem;
  color: var(--graphite);
}

.form-row input,
.form-row textarea {
  width: 100%;
  font-family: var(--font-body);
  font-size: 1rem;
  padding: 0.7rem 0.8rem;
  border: 1px solid var(--graphite);
  background: #fff;
  color: var(--ink);
}

.form-row textarea { min-height: 8rem; resize: vertical; }

.hp-field { position: absolute; left: -9999px; opacity: 0; height: 0; overflow: hidden; }

.form-status {
  margin-top: 1rem;
  font-family: var(--font-mono);
  font-size: 0.9rem;
}

.form-status.ok { color: #1c6b3c; }
.form-status.err { color: #a03020; }

/* ---------- Footer ---------- */

.site-footer {
  background: var(--graphite);
  color: var(--paper);
  padding: 2.5rem 0;
  margin-top: 0;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  gap: 2rem;
  flex-wrap: wrap;
  align-items: baseline;
}

.site-footer a { color: var(--osb); text-decoration: none; }
.site-footer a:hover { text-decoration: underline; }

.footer-meta {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.04em;
  opacity: 0.8;
}

/* ---------- Responsive ---------- */

@media (max-width: 800px) {
  .hero-grid,
  .two-col,
  .contact-grid { grid-template-columns: 1fr; }
  .hero { padding: 2.5rem 0 2rem; }
  .stat-row { grid-template-columns: 1fr; }
  .header-inner { flex-direction: column; align-items: flex-start; gap: 0.6rem; }
}