/* Stonebridge Construction Co. — standalone demo */
@import url("https://fonts.googleapis.com/css2?family=Barlow:wght@400;500;600;700;800&display=swap");

:root {
  --sb-navy: #0f172a;
  --sb-navy-light: #1e293b;
  --sb-accent: #f59e0b;
  --sb-accent-dark: #d97706;
  --sb-white: #ffffff;
  --sb-muted: #94a3b8;
  --sb-line: #334155;
  --sb-radius: 6px;
}

*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  font-family: "Barlow", system-ui, sans-serif;
  font-size: 1rem;
  line-height: 1.55;
  color: var(--sb-white);
  background: var(--sb-navy);
}

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

.sb-wrap {
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 1.25rem;
}

@media (min-width: 768px) {
  .sb-wrap { padding: 0 2rem; }
}

.sb-topbar {
  background: var(--sb-navy-light);
  border-bottom: 1px solid var(--sb-line);
  font-size: 0.75rem;
  padding: 0.45rem 1rem;
  text-align: center;
  color: var(--sb-muted);
}

.sb-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(15, 23, 42, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--sb-line);
}

.sb-header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 4.25rem;
  gap: 1rem;
}

.sb-logo {
  font-weight: 800;
  font-size: 1.15rem;
  letter-spacing: 0.02em;
  color: var(--sb-white);
  text-decoration: none;
  text-transform: uppercase;
}

.sb-logo span { color: var(--sb-accent); }

.sb-nav {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.sb-nav a {
  color: var(--sb-muted);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.8125rem;
  padding: 0.5rem 0.65rem;
}

.sb-nav a:hover { color: var(--sb-white); }

@media (max-width: 640px) {
  .sb-nav .sb-hide-sm { display: none; }
}

.sb-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.35rem;
  font-family: inherit;
  font-size: 0.875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  border-radius: var(--sb-radius);
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: background 0.2s, color 0.2s;
}

.sb-btn-primary {
  background: var(--sb-accent);
  color: var(--sb-navy);
}

.sb-btn-primary:hover { background: var(--sb-accent-dark); color: var(--sb-navy); }

.sb-btn-outline {
  background: transparent;
  color: var(--sb-white);
  border: 2px solid var(--sb-white);
}

.sb-btn-outline:hover {
  background: var(--sb-white);
  color: var(--sb-navy);
}

/* Hero */
.sb-hero {
  position: relative;
  min-height: 72vh;
  display: flex;
  align-items: flex-end;
  padding: 4rem 0 5rem;
}

.sb-hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.sb-hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.sb-hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(15, 23, 42, 0.92) 0%, rgba(15, 23, 42, 0.55) 55%, rgba(15, 23, 42, 0.35) 100%);
  z-index: 1;
}

.sb-hero .sb-wrap { position: relative; z-index: 2; }

.sb-hero h1 {
  font-size: clamp(2rem, 5vw, 3.25rem);
  font-weight: 800;
  line-height: 1.08;
  margin: 0 0 1rem;
  max-width: 16ch;
  text-transform: uppercase;
  letter-spacing: 0.02em;
}

.sb-hero-lead {
  font-size: 1.1rem;
  color: #cbd5e1;
  max-width: 42ch;
  margin: 0 0 1.75rem;
}

.sb-hero-ctas { display: flex; flex-wrap: wrap; gap: 0.75rem; }

/* Stats */
.sb-stats {
  background: var(--sb-navy-light);
  border-top: 1px solid var(--sb-line);
  border-bottom: 1px solid var(--sb-line);
  padding: 2rem 0;
}

.sb-stats-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
  text-align: center;
}

@media (min-width: 768px) {
  .sb-stats-grid { grid-template-columns: repeat(4, 1fr); }
}

.sb-stat strong {
  display: block;
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--sb-accent);
}

.sb-stat span {
  font-size: 0.8125rem;
  color: var(--sb-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* Sections */
.sb-section {
  padding: 3.5rem 0;
}

.sb-section-alt {
  background: var(--sb-navy-light);
}

.sb-section h2 {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin: 0 0 0.5rem;
}

.sb-section-intro {
  color: var(--sb-muted);
  margin: 0 0 2rem;
  max-width: 55ch;
}

.sb-services {
  display: grid;
  gap: 1rem;
}

@media (min-width: 640px) {
  .sb-services { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 1024px) {
  .sb-services { grid-template-columns: repeat(3, 1fr); }
}

.sb-svc {
  border: 1px solid var(--sb-line);
  border-radius: var(--sb-radius);
  padding: 1.35rem;
  background: rgba(30, 41, 59, 0.5);
}

.sb-svc h3 {
  margin: 0 0 0.35rem;
  font-size: 1.05rem;
  font-weight: 700;
}

.sb-svc p {
  margin: 0;
  font-size: 0.9rem;
  color: var(--sb-muted);
}

/* Gallery */
.sb-gallery {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.65rem;
}

@media (min-width: 768px) {
  .sb-gallery { grid-template-columns: repeat(4, 1fr); }
}

.sb-gallery img {
  width: 100%;
  aspect-ratio: 4/3;
  object-fit: cover;
  border-radius: var(--sb-radius);
  border: 1px solid var(--sb-line);
}

.sb-gallery .sb-span-2 {
  grid-column: span 2;
  aspect-ratio: 2/1;
}

/* Process */
.sb-process {
  display: grid;
  gap: 1.5rem;
}

@media (min-width: 768px) {
  .sb-process { grid-template-columns: 1fr 1fr; align-items: start; }
}

.sb-process ol {
  margin: 0;
  padding-left: 1.25rem;
  color: #cbd5e1;
}

.sb-process li { margin-bottom: 0.75rem; }

/* Testimonials */
.sb-quotes {
  display: grid;
  gap: 1rem;
}

@media (min-width: 768px) {
  .sb-quotes { grid-template-columns: repeat(3, 1fr); }
}

.sb-quote {
  border: 1px solid var(--sb-line);
  border-radius: var(--sb-radius);
  padding: 1.35rem;
  background: rgba(30, 41, 59, 0.4);
}

.sb-quote p {
  margin: 0;
  font-size: 0.95rem;
  color: #e2e8f0;
  font-style: italic;
}

.sb-quote cite {
  display: block;
  margin-top: 1rem;
  font-size: 0.8rem;
  color: var(--sb-muted);
  font-style: normal;
}

/* Form */
.sb-form-wrap { max-width: 520px; margin: 0 auto; }

.sb-form {
  border: 1px solid var(--sb-line);
  border-radius: var(--sb-radius);
  padding: 1.75rem;
  background: var(--sb-navy-light);
}

.sb-field { margin-bottom: 1rem; }

.sb-field label {
  display: block;
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--sb-muted);
  margin-bottom: 0.35rem;
}

.sb-field input,
.sb-field textarea,
.sb-field select {
  width: 100%;
  padding: 0.65rem 0.85rem;
  font-family: inherit;
  font-size: 1rem;
  border: 1px solid var(--sb-line);
  border-radius: 4px;
  background: var(--sb-navy);
  color: var(--sb-white);
}

.sb-field textarea { min-height: 110px; resize: vertical; }

.sb-form-note {
  font-size: 0.75rem;
  color: var(--sb-muted);
  margin-top: 0.75rem;
}

/* Footer */
.sb-footer {
  border-top: 1px solid var(--sb-line);
  padding: 2.5rem 0 1.5rem;
  background: #020617;
}

.sb-footer-grid {
  display: grid;
  gap: 2rem;
}

@media (min-width: 640px) {
  .sb-footer-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 900px) {
  .sb-footer-grid { grid-template-columns: 1.2fr 1fr 1fr; }
}

.sb-footer h3 {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--sb-accent);
  margin: 0 0 0.75rem;
}

.sb-footer p, .sb-footer li {
  font-size: 0.875rem;
  color: var(--sb-muted);
  margin: 0;
  line-height: 1.6;
}

.sb-footer ul { list-style: none; padding: 0; margin: 0; }

.sb-footer li { margin-bottom: 0.35rem; }

.sb-footer a { color: #e2e8f0; text-decoration: none; }

.sb-footer a:hover { color: var(--sb-accent); }

.sb-demo-strip {
  text-align: center;
  font-size: 0.6875rem;
  color: var(--sb-muted);
  padding: 1rem;
  background: var(--sb-navy);
  border-top: 1px solid var(--sb-line);
}

.sb-demo-strip a {
  color: var(--sb-accent);
  font-weight: 600;
  text-decoration: none;
}

.sb-demo-strip a:hover { text-decoration: underline; }

.sb-sep { margin: 0 0.4rem; opacity: 0.5; }