/* ============================================
   GRANITE GRID CONSTRUCTION
   Premium Architectural Design System
   ============================================ */

:root {
  --black: #0a0a0a;
  --charcoal: #141414;
  --charcoal-light: #1e1e1e;
  --charcoal-mid: #2a2a2a;
  --gold: #c5a059;
  --gold-light: #d4b06a;
  --gold-dark: #a8863f;
  --silver: #a9a9a9;
  --silver-light: #d3d3d3;
  --white: #f5f5f3;
  --white-pure: #ffffff;
  --text-muted: #8a8a8a;
  --border: rgba(197, 160, 89, 0.15);
  --border-light: rgba(255, 255, 255, 0.08);

  --font-display: 'Cormorant Garamond', Georgia, serif;
  --font-body: 'Outfit', system-ui, sans-serif;

  --header-height: 80px;
  --container: 1280px;
  --section-pad: clamp(80px, 10vw, 140px);
  --transition: 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  background: var(--black);
  color: var(--white);
  line-height: 1.6;
  overflow-x: hidden;
}

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

a {
  color: inherit;
  text-decoration: none;
}

.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 clamp(24px, 4vw, 48px);
}

/* ============================================
   HEADER
   ============================================ */

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--header-height);
  transition: background var(--transition), backdrop-filter var(--transition);
}

.site-header.scrolled {
  background: rgba(10, 10, 10, 0.92);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-light);
}

.header-inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 clamp(24px, 4vw, 48px);
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand-logo {
  height: 48px;
  width: auto;
  object-fit: contain;
}

.nav {
  display: flex;
  align-items: center;
  gap: 40px;
}

.nav-link {
  font-size: 0.8125rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--silver-light);
  transition: color 0.3s;
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--gold);
  transition: width 0.3s;
}

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

.nav-link:hover::after {
  width: 100%;
}

.nav-link--cta {
  padding: 10px 24px;
  border: 1px solid var(--gold);
  color: var(--gold);
  transition: background 0.3s, color 0.3s;
}

.nav-link--cta::after {
  display: none;
}

.nav-link--cta:hover {
  background: var(--gold);
  color: var(--black);
}

.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 6px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.menu-toggle span {
  display: block;
  width: 24px;
  height: 1.5px;
  background: var(--white);
  transition: transform 0.3s, opacity 0.3s;
}

.menu-toggle.active span:first-child {
  transform: rotate(45deg) translate(3px, 3px);
}

.menu-toggle.active span:last-child {
  transform: rotate(-45deg) translate(3px, -3px);
}

/* ============================================
   HERO
   ============================================ */

.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: flex-end;
  padding-bottom: clamp(60px, 8vw, 100px);
}

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

.hero-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 30%;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to top,
    var(--black) 0%,
    rgba(10, 10, 10, 0.7) 40%,
    rgba(10, 10, 10, 0.3) 100%
  );
}

.hero-content {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 clamp(24px, 4vw, 48px);
  padding-top: calc(var(--header-height) + 60px);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 60px;
  align-items: end;
}

.hero-eyebrow {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 20px;
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(2.8rem, 6vw, 5rem);
  font-weight: 500;
  line-height: 1.08;
  letter-spacing: -0.02em;
  margin-bottom: 24px;
}

.hero-title em {
  font-style: italic;
  color: var(--gold);
}

.hero-desc {
  font-size: 1.05rem;
  font-weight: 300;
  color: var(--silver);
  max-width: 480px;
  line-height: 1.7;
  margin-bottom: 36px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.hero-stats {
  display: flex;
  flex-direction: column;
  gap: 32px;
  padding-left: 40px;
  border-left: 1px solid var(--border);
}

.stat-number {
  display: block;
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 600;
  color: var(--gold);
  line-height: 1;
  margin-bottom: 6px;
}

.stat-label {
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.hero-scroll {
  position: absolute;
  bottom: 40px;
  right: clamp(24px, 4vw, 48px);
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}

.hero-scroll span {
  font-size: 0.65rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-muted);
  writing-mode: vertical-rl;
}

.scroll-line {
  width: 1px;
  height: 60px;
  background: linear-gradient(to bottom, var(--gold), transparent);
  animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {
  0%, 100% { opacity: 0.3; transform: scaleY(0.6); }
  50% { opacity: 1; transform: scaleY(1); }
}

/* ============================================
   BUTTONS
   ============================================ */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-body);
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 14px 32px;
  border: none;
  cursor: pointer;
  transition: all 0.3s;
}

.btn-primary {
  background: var(--gold);
  color: var(--black);
}

.btn-primary:hover {
  background: var(--gold-light);
}

.btn-outline {
  background: transparent;
  color: var(--white);
  border: 1px solid rgba(255, 255, 255, 0.25);
}

.btn-outline:hover {
  border-color: var(--gold);
  color: var(--gold);
}

.btn-large {
  padding: 18px 48px;
  font-size: 0.875rem;
}

.btn-full {
  width: 100%;
}

/* ============================================
   SECTIONS
   ============================================ */

.section {
  padding: var(--section-pad) 0;
}

.section-label {
  display: block;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 16px;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3.2rem);
  font-weight: 500;
  line-height: 1.15;
  letter-spacing: -0.01em;
  margin-bottom: 24px;
}

.section-text {
  font-size: 1rem;
  font-weight: 300;
  color: var(--silver);
  line-height: 1.8;
  max-width: 540px;
}

.section-text + .section-text {
  margin-top: 16px;
}

.section-header {
  margin-bottom: clamp(48px, 6vw, 80px);
  max-width: 640px;
}

/* ============================================
   ABOUT
   ============================================ */

.about {
  background: var(--charcoal);
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(40px, 6vw, 80px);
  align-items: center;
}

.about-images {
  position: relative;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.about-image {
  overflow: hidden;
}

.about-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.about-image:hover img {
  transform: scale(1.04);
}

.about-image--primary {
  grid-row: span 2;
  min-height: 480px;
}

.about-image--secondary {
  min-height: 232px;
}

.about-features {
  margin-top: 40px;
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.feature {
  display: flex;
  gap: 20px;
  align-items: flex-start;
}

.feature-number {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--gold);
  opacity: 0.5;
  flex-shrink: 0;
  line-height: 1;
  padding-top: 2px;
}

.feature h3 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 4px;
  letter-spacing: 0.02em;
}

.feature p {
  font-size: 0.875rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* ============================================
   SERVICES
   ============================================ */

.services-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2px;
  background: var(--border-light);
}

.service-card {
  background: var(--black);
  display: flex;
  flex-direction: column;
  transition: background 0.4s;
}

.service-card:hover {
  background: var(--charcoal);
}

.service-card-image {
  height: 260px;
  overflow: hidden;
}

.service-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.service-card:hover .service-card-image img {
  transform: scale(1.05);
}

.service-card-body {
  padding: 36px 32px 40px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.service-index {
  font-family: var(--font-display);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--gold);
  opacity: 0.6;
  margin-bottom: 12px;
}

.service-card-body h3 {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 500;
  margin-bottom: 12px;
  line-height: 1.2;
}

.service-card-body p {
  font-size: 0.875rem;
  color: var(--text-muted);
  line-height: 1.7;
}

/* ============================================
   PROJECTS
   ============================================ */

.projects {
  background: var(--charcoal);
  padding-bottom: 0;
}

.projects-showcase {
  display: flex;
  flex-direction: column;
}

.project-feature {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  min-height: 520px;
  border-top: 1px solid var(--border-light);
}

.project-feature--reverse {
  direction: rtl;
}

.project-feature--reverse > * {
  direction: ltr;
}

.project-feature img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  min-height: 400px;
}

.project-feature-info {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: clamp(40px, 6vw, 80px);
  background: var(--black);
}

.project-tag {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 16px;
}

.project-feature-info h3 {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 500;
  margin-bottom: 16px;
  line-height: 1.2;
}

.project-feature-info p {
  font-size: 0.9375rem;
  color: var(--text-muted);
  line-height: 1.7;
  max-width: 420px;
}

/* ============================================
   CTA BANNER
   ============================================ */

.cta-banner {
  padding: clamp(80px, 10vw, 120px) 0;
  background: var(--black);
  border-top: 1px solid var(--border-light);
  border-bottom: 1px solid var(--border-light);
}

.cta-inner {
  text-align: center;
}

.cta-inner h2 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4.5vw, 3.5rem);
  font-weight: 500;
  line-height: 1.15;
  margin-bottom: 36px;
}

.cta-inner h2 em {
  font-style: italic;
  color: var(--gold);
}

/* ============================================
   CONTACT
   ============================================ */

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(40px, 6vw, 80px);
  align-items: start;
}

.contact-details {
  margin-top: 40px;
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.contact-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.contact-icon {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border);
  color: var(--gold);
}

.contact-label {
  display: block;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 4px;
}

.contact-value {
  display: block;
  font-size: 0.9375rem;
  color: var(--silver-light);
  transition: color 0.3s;
}

a.contact-value:hover {
  color: var(--gold);
}

.contact-form {
  background: var(--charcoal);
  padding: clamp(32px, 4vw, 48px);
  border: 1px solid var(--border-light);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 8px;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 14px 16px;
  background: var(--black);
  border: 1px solid var(--border-light);
  color: var(--white);
  font-family: var(--font-body);
  font-size: 0.9375rem;
  transition: border-color 0.3s;
  outline: none;
  appearance: none;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--text-muted);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--gold);
}

.form-group select {
  cursor: pointer;
  background-image: url("data:image/svg+xml,%3Csvg width='12' height='8' viewBox='0 0 12 8' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1.5L6 6.5L11 1.5' stroke='%238a8a8a' stroke-width='1.5'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
  padding-right: 40px;
}

.form-group textarea {
  resize: vertical;
  min-height: 120px;
}

/* ============================================
   FOOTER
   ============================================ */

.site-footer {
  background: var(--charcoal);
  padding: clamp(60px, 8vw, 80px) 0 0;
  border-top: 1px solid var(--border-light);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 60px;
}

.footer-logo {
  height: 56px;
  width: auto;
  margin-bottom: 20px;
}

.footer-brand p {
  font-size: 0.875rem;
  color: var(--text-muted);
  line-height: 1.7;
  max-width: 280px;
}

.footer-links h4 {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 20px;
}

.footer-links a,
.footer-links span {
  display: block;
  font-size: 0.875rem;
  color: var(--text-muted);
  margin-bottom: 10px;
  transition: color 0.3s;
}

.footer-links a:hover {
  color: var(--white);
}

.footer-bottom {
  padding: 24px 0;
  border-top: 1px solid var(--border-light);
  text-align: center;
}

.footer-bottom span {
  font-size: 0.75rem;
  color: var(--text-muted);
  letter-spacing: 0.04em;
}

/* ============================================
   REVEAL ANIMATIONS
   ============================================ */

.reveal {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }

/* ============================================
   RESPONSIVE
   ============================================ */

@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .hero-stats {
    flex-direction: row;
    padding-left: 0;
    border-left: none;
    padding-top: 32px;
    border-top: 1px solid var(--border);
    gap: 40px;
  }

  .about-grid {
    grid-template-columns: 1fr;
  }

  .about-images {
    order: -1;
  }

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

  .project-feature,
  .project-feature--reverse {
    grid-template-columns: 1fr;
    direction: ltr;
  }

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

  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  .nav {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(10, 10, 10, 0.98);
    flex-direction: column;
    justify-content: center;
    gap: 32px;
    transform: translateX(100%);
    transition: transform 0.4s ease;
  }

  .nav.open {
    transform: translateX(0);
  }

  .nav-link {
    font-size: 1rem;
  }

  .menu-toggle {
    display: flex;
  }

  .hero-scroll {
    display: none;
  }

  .hero-stats {
    flex-wrap: wrap;
    gap: 24px;
  }

  .about-image--primary {
    min-height: 320px;
  }

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

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
}

@media (max-width: 480px) {
  .hero-actions {
    flex-direction: column;
  }

  .btn {
    width: 100%;
  }
}