/* ===========================
   Base & Reset
   =========================== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --color-black:   #0d0d0d;
  --color-dark:    #1a1a1a;
  --color-charcoal:#2e2e2e;
  --color-mid:     #5a5a5a;
  --color-muted:   #8a8a8a;
  --color-light:   #f4f2ef;
  --color-white:   #ffffff;
  --color-accent:  #b8860b;
  --color-accent-light: #d4a017;
  --font-serif:    'Playfair Display', Georgia, serif;
  --font-sans:     'Inter', system-ui, sans-serif;
  --max-w:         1200px;
  --radius:        4px;
  --transition:    0.25s ease;
}

html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: var(--font-sans);
  color: var(--color-dark);
  background: var(--color-white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }

.container {
  width: 100%;
  max-width: var(--max-w);
  margin-inline: auto;
  padding-inline: clamp(1.25rem, 4vw, 2.5rem);
}

.section { padding-block: clamp(4rem, 8vw, 7rem); }

/* ===========================
   Typography
   =========================== */
h1, h2, h3 { font-family: var(--font-serif); line-height: 1.15; }
h1 { font-size: clamp(2.4rem, 5vw, 4rem); font-weight: 700; }
h2 { font-size: clamp(1.8rem, 3.5vw, 2.8rem); font-weight: 700; }
h3 { font-size: clamp(1.15rem, 2vw, 1.4rem); font-weight: 700; }

.section-eyebrow {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 0.75rem;
}

.section-header {
  text-align: center;
  max-width: 680px;
  margin-inline: auto;
  margin-bottom: clamp(2.5rem, 5vw, 4rem);
}

.section-desc {
  margin-top: 1rem;
  color: var(--color-mid);
  font-size: 1.05rem;
  line-height: 1.7;
}

/* ===========================
   Buttons
   =========================== */
.btn {
  display: inline-block;
  padding: 0.75rem 1.75rem;
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  border-radius: var(--radius);
  transition: all var(--transition);
  white-space: nowrap;
}

.btn-primary {
  background: var(--color-accent);
  color: var(--color-white);
  border: 2px solid var(--color-accent);
}
.btn-primary:hover { background: var(--color-accent-light); border-color: var(--color-accent-light); }

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

.btn-ghost {
  background: transparent;
  color: var(--color-white);
  border: 2px solid rgba(255,255,255,0.6);
}
.btn-ghost:hover { background: rgba(255,255,255,0.15); border-color: var(--color-white); }

.btn-full { width: 100%; text-align: center; }

/* ===========================
   Navigation
   =========================== */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(13,13,13,0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255,255,255,0.07);
  transition: background var(--transition);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  gap: 2rem;
}

.logo {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}
.logo-main {
  font-family: var(--font-serif);
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--color-white);
  letter-spacing: 0.02em;
}
.logo-sub {
  font-size: 0.6rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-accent);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav-links a {
  color: rgba(255,255,255,0.8);
  font-size: 0.875rem;
  font-weight: 500;
  letter-spacing: 0.03em;
  transition: color var(--transition);
}
.nav-links a:hover { color: var(--color-white); }
.nav-links .btn-outline {
  color: var(--color-white);
  border-color: rgba(255,255,255,0.5);
  padding: 0.5rem 1.25rem;
  font-size: 0.825rem;
}
.nav-links .btn-outline:hover { background: var(--color-white); color: var(--color-dark); border-color: var(--color-white); }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 4px;
}
.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-white);
  border-radius: 2px;
  transition: all var(--transition);
}

/* ===========================
   Hero
   =========================== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: var(--color-black);
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 20% 50%, rgba(184,134,11,0.12) 0%, transparent 60%),
    radial-gradient(ellipse 60% 80% at 80% 20%, rgba(184,134,11,0.06) 0%, transparent 50%),
    linear-gradient(160deg, #1a1a1a 0%, #0d0d0d 50%, #111 100%);
}

/* Subtle architectural grid texture */
.hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.015) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.015) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
}

.hero-overlay { display: none; }

.hero-content {
  position: relative;
  z-index: 2;
  padding-top: 100px;
  padding-bottom: 4rem;
  max-width: 820px;
}

.hero-eyebrow {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 1.5rem;
}

.hero h1 {
  color: var(--color-white);
  margin-bottom: 1.5rem;
}

.hero-sub {
  font-size: clamp(1rem, 1.8vw, 1.2rem);
  color: rgba(255,255,255,0.65);
  max-width: 560px;
  line-height: 1.75;
  margin-bottom: 2.5rem;
}

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

.hero-scroll-indicator {
  position: absolute;
  bottom: 2.5rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
}
.hero-scroll-indicator span {
  display: block;
  width: 1px;
  height: 60px;
  background: linear-gradient(to bottom, var(--color-accent), transparent);
  animation: scrollPulse 2s ease-in-out infinite;
}
@keyframes scrollPulse {
  0%, 100% { opacity: 1; transform: scaleY(1); }
  50% { opacity: 0.4; transform: scaleY(0.6); }
}

/* ===========================
   Stats Bar
   =========================== */
.stats-bar {
  background: var(--color-dark);
  border-top: 1px solid rgba(255,255,255,0.06);
  border-bottom: 1px solid rgba(255,255,255,0.06);
  padding-block: 2.5rem;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
  text-align: center;
}

.stat { padding: 0.5rem; }
.stat-number {
  display: block;
  font-family: var(--font-serif);
  font-size: clamp(1.8rem, 3vw, 2.6rem);
  font-weight: 700;
  color: var(--color-accent);
  line-height: 1;
  margin-bottom: 0.4rem;
}
.stat-label {
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.5);
}

/* ===========================
   Services
   =========================== */
.services { background: var(--color-light); }

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.service-card {
  background: var(--color-white);
  border: 1px solid rgba(0,0,0,0.07);
  border-radius: 6px;
  padding: 2rem 1.75rem;
  transition: transform var(--transition), box-shadow var(--transition);
}
.service-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 40px rgba(0,0,0,0.1);
}
.service-card.featured {
  background: var(--color-dark);
  border-color: transparent;
  color: var(--color-white);
}
.service-card.featured p { color: rgba(255,255,255,0.7); }
.service-card.featured ul li { color: rgba(255,255,255,0.6); }
.service-card.featured h3 { color: var(--color-white); }

.service-icon {
  width: 44px;
  height: 44px;
  margin-bottom: 1.25rem;
  color: var(--color-accent);
}
.service-icon svg { width: 100%; height: 100%; }

.service-card h3 { margin-bottom: 0.75rem; }
.service-card p { font-size: 0.9rem; color: var(--color-mid); line-height: 1.7; margin-bottom: 1rem; }
.service-card ul { display: flex; flex-direction: column; gap: 0.35rem; }
.service-card ul li {
  font-size: 0.82rem;
  color: var(--color-muted);
  padding-left: 1rem;
  position: relative;
}
.service-card ul li::before {
  content: '—';
  position: absolute;
  left: 0;
  color: var(--color-accent);
}

/* ===========================
   About
   =========================== */
.about { background: var(--color-white); }

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(3rem, 6vw, 6rem);
  align-items: center;
}

.about-image {
  position: relative;
  aspect-ratio: 4/5;
}
.about-image-bg {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--color-charcoal) 0%, var(--color-black) 100%);
  border-radius: 6px;
}
.about-image-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 30px 30px;
  border-radius: 6px;
}
.about-image-accent {
  position: absolute;
  bottom: -1.5rem;
  right: -1.5rem;
  width: 55%;
  aspect-ratio: 1;
  background: var(--color-accent);
  opacity: 0.15;
  border-radius: 6px;
  z-index: -1;
}

.about-content .section-eyebrow { margin-bottom: 0.5rem; }
.about-content h2 { margin-bottom: 1.5rem; }
.about-content p {
  color: var(--color-mid);
  font-size: 0.975rem;
  line-height: 1.8;
  margin-bottom: 1rem;
}

.about-values { margin-top: 2rem; display: flex; flex-direction: column; gap: 1rem; }
.value {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
}
.value-icon {
  color: var(--color-accent);
  font-size: 0.6rem;
  margin-top: 0.3rem;
  flex-shrink: 0;
}
.value strong {
  display: block;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-dark);
  margin-bottom: 0.1rem;
}
.value span { font-size: 0.85rem; color: var(--color-muted); }

/* ===========================
   Projects
   =========================== */
.projects { background: var(--color-light); }

.project-filters {
  display: flex;
  justify-content: center;
  gap: 0.5rem;
  margin-bottom: 2.5rem;
  flex-wrap: wrap;
}

.filter-btn {
  padding: 0.5rem 1.25rem;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  border-radius: 100px;
  border: 1.5px solid rgba(0,0,0,0.15);
  color: var(--color-mid);
  transition: all var(--transition);
}
.filter-btn:hover,
.filter-btn.active {
  background: var(--color-dark);
  color: var(--color-white);
  border-color: var(--color-dark);
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.project-card {
  background: var(--color-white);
  border-radius: 6px;
  overflow: hidden;
  border: 1px solid rgba(0,0,0,0.07);
  transition: transform var(--transition), box-shadow var(--transition);
}
.project-card:hover { transform: translateY(-4px); box-shadow: 0 16px 40px rgba(0,0,0,0.1); }
.project-card.hidden { display: none; }

.project-img {
  aspect-ratio: 16/10;
  background-size: cover;
  background-position: center;
}
.project-img-1 { background: linear-gradient(135deg, #3d2b1f 0%, #6b4226 50%, #3d2b1f 100%); }
.project-img-2 { background: linear-gradient(135deg, #1c2b1c 0%, #2d4a2d 50%, #1c2b1c 100%); }
.project-img-3 { background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%); }
.project-img-4 { background: linear-gradient(135deg, #2b1f3d 0%, #422662 50%, #2b1f3d 100%); }
.project-img-5 { background: linear-gradient(135deg, #1f2b2b 0%, #264a4a 50%, #1f2b2b 100%); }
.project-img-6 { background: linear-gradient(135deg, #2b2b1f 0%, #4a4a26 50%, #2b2b1f 100%); }

/* Add subtle pattern overlay to project images */
.project-img::after {
  content: '';
  display: block;
  width: 100%;
  height: 100%;
  background-image:
    linear-gradient(rgba(255,255,255,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.04) 1px, transparent 1px);
  background-size: 20px 20px;
}

.project-info { padding: 1.5rem; }
.project-tag {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 0.6rem;
}
.project-info h3 { margin-bottom: 0.5rem; font-size: 1.05rem; }
.project-info p { font-size: 0.875rem; color: var(--color-mid); line-height: 1.65; }

/* ===========================
   CTA Band
   =========================== */
.cta-band {
  background: var(--color-dark);
  padding-block: clamp(3rem, 6vw, 4.5rem);
  border-top: 1px solid rgba(255,255,255,0.06);
  border-bottom: 1px solid rgba(255,255,255,0.06);
}

.cta-band-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  flex-wrap: wrap;
}
.cta-band h2 { color: var(--color-white); font-size: clamp(1.4rem, 2.5vw, 2rem); }
.cta-band p { color: rgba(255,255,255,0.6); margin-top: 0.5rem; font-size: 0.95rem; }

/* ===========================
   Contact
   =========================== */
.contact { background: var(--color-white); }

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: clamp(3rem, 6vw, 5rem);
  align-items: start;
}

.contact-info h2 { margin-bottom: 1rem; }
.contact-info > p { color: var(--color-mid); font-size: 0.975rem; line-height: 1.8; margin-bottom: 2rem; }

.contact-details { display: flex; flex-direction: column; gap: 1rem; }
.contact-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.9rem;
  color: var(--color-mid);
}
.contact-item svg { width: 18px; height: 18px; flex-shrink: 0; color: var(--color-accent); }
.contact-item a { color: var(--color-mid); transition: color var(--transition); }
.contact-item a:hover { color: var(--color-accent); }

/* Form */
.contact-form { display: flex; flex-direction: column; gap: 1.25rem; }

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
}

.form-group { display: flex; flex-direction: column; gap: 0.4rem; }
.form-group label {
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--color-charcoal);
}
.required { color: var(--color-accent); }

.form-group input,
.form-group select,
.form-group textarea {
  font-family: var(--font-sans);
  font-size: 0.9rem;
  padding: 0.7rem 1rem;
  border: 1.5px solid rgba(0,0,0,0.15);
  border-radius: var(--radius);
  background: var(--color-white);
  color: var(--color-dark);
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
  appearance: none;
  -webkit-appearance: none;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(184,134,11,0.12);
}
.form-group textarea { resize: vertical; min-height: 120px; }

.form-note {
  font-size: 0.78rem;
  color: var(--color-muted);
  text-align: center;
  margin-top: -0.5rem;
}

/* Form states */
.form-group input.error,
.form-group textarea.error {
  border-color: #c0392b;
}
.form-success {
  background: #f0faf0;
  border: 1.5px solid #2ecc71;
  border-radius: var(--radius);
  padding: 1.25rem;
  text-align: center;
  color: #1a6b1a;
  font-size: 0.9rem;
  font-weight: 500;
}

/* ===========================
   Footer
   =========================== */
.site-footer {
  background: var(--color-black);
  color: rgba(255,255,255,0.55);
  padding-top: 4rem;
}

.footer-inner {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 4rem;
  padding-bottom: 3rem;
  border-bottom: 1px solid rgba(255,255,255,0.07);
}

.footer-brand .logo-main { color: var(--color-white); }
.footer-brand .logo-sub { color: var(--color-accent); }
.footer-brand p {
  margin-top: 1rem;
  font-size: 0.875rem;
  line-height: 1.7;
  color: rgba(255,255,255,0.4);
}
.footer-location {
  color: var(--color-accent);
  font-style: normal;
}

.footer-links {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
}

.footer-col strong {
  display: block;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.7);
  margin-bottom: 1rem;
}
.footer-col ul { display: flex; flex-direction: column; gap: 0.6rem; }
.footer-col a {
  font-size: 0.875rem;
  color: rgba(255,255,255,0.45);
  transition: color var(--transition);
}
.footer-col a:hover { color: var(--color-accent); }

.footer-bottom {
  padding-block: 1.25rem;
}
.footer-bottom p {
  font-size: 0.78rem;
  color: rgba(255,255,255,0.25);
  text-align: center;
}

/* ===========================
   Responsive
   =========================== */
@media (max-width: 1024px) {
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .projects-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .nav-toggle { display: flex; }

  .nav-links {
    position: fixed;
    top: 72px;
    left: 0; right: 0;
    background: rgba(13,13,13,0.97);
    flex-direction: column;
    align-items: center;
    padding: 2rem;
    gap: 1.5rem;
    transform: translateY(-110%);
    opacity: 0;
    transition: transform 0.3s ease, opacity 0.3s ease;
    pointer-events: none;
    border-bottom: 1px solid rgba(255,255,255,0.07);
  }
  .nav-links.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

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

  .services-grid { grid-template-columns: 1fr; }
  .projects-grid { grid-template-columns: 1fr; }

  .about-grid { grid-template-columns: 1fr; }
  .about-image { aspect-ratio: 3/2; max-height: 300px; }

  .contact-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }

  .cta-band-inner { flex-direction: column; text-align: center; }

  .footer-inner { grid-template-columns: 1fr; gap: 2.5rem; }
}

@media (max-width: 480px) {
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .hero-cta { flex-direction: column; }
  .hero-cta .btn { text-align: center; }
}