/* My3DBuild — Landing Page Styles
   Warm premium palette · Playfair headings · Inter body
   Inspired by Grow Cabin dashboard aesthetic */

/* ===== DESIGN TOKENS ===== */
:root {
  /* Warm base palette */
  --bg: #FFFBF5;
  --bg-alt: #F7F3ED;
  --surface: #FFFFFF;
  --surface-alt: #F5F0EB;
  --border: #E7E0D8;
  --border-light: #F0EBE4;
  --text: #1C1917;
  --text-secondary: #57534E;
  --text-muted: #A8A29E;

  /* Steel blue accent — structural, trustworthy */
  --accent: #2D5A7B;
  --accent-light: #3A7CA5;
  --accent-dark: #1E3D54;
  --accent-bg: rgba(45, 90, 123, 0.08);
  --accent-bg-strong: rgba(45, 90, 123, 0.15);

  /* Supporting colours */
  --warm: #C4956A;
  --warm-bg: rgba(196, 149, 106, 0.10);
  --green: #3A7D1C;
  --green-bg: rgba(58, 125, 28, 0.08);

  /* Layout */
  --max-width: 1200px;
  --section-pad: 100px;
  --section-pad-mobile: 60px;
  --radius: 16px;
  --radius-sm: 10px;
  --radius-xs: 6px;
  --shadow: 0 4px 24px rgba(28, 25, 23, 0.06);
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 12px 48px rgba(28, 25, 23, 0.10);
  --transition: 0.25s ease;

  /* Typography */
  --font-heading: 'Playfair Display', Georgia, serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img { max-width: 100%; display: block; }
a { color: var(--accent); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--accent-light); }

/* ===== CONTAINER ===== */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* ===== HEADER ===== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255, 251, 245, 0.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-light);
  transition: box-shadow var(--transition);
}

.header.scrolled {
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.06);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 70px;
}

/* Logo */
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--text);
}

.logo-icon {
  font-size: 28px;
  color: var(--accent);
}

.logo-text {
  font-family: var(--font-body);
  font-size: 22px;
  font-weight: 500;
  letter-spacing: -0.02em;
  color: var(--text);
}

.logo-text strong {
  font-weight: 700;
  color: var(--accent);
}

/* Nav */
.nav {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-link {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  text-decoration: none;
  transition: color var(--transition);
  letter-spacing: 0.01em;
}

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

/* Mobile nav toggle */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.nav-toggle span {
  width: 24px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: var(--transition);
}

/* ===== HERO ===== */
.hero {
  padding: 160px 0 var(--section-pad);
  text-align: center;
  background: linear-gradient(180deg, var(--bg) 0%, var(--bg-alt) 100%);
}

.hero-content {
  max-width: 800px;
  margin: 0 auto;
}

.hero-eyebrow {
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--accent);
  margin-bottom: 16px;
}

.hero-title {
  font-family: var(--font-heading);
  font-size: clamp(40px, 6vw, 68px);
  font-weight: 800;
  line-height: 1.08;
  color: var(--text);
  margin-bottom: 24px;
  letter-spacing: -0.02em;
}

.hero-subtitle {
  font-size: 18px;
  line-height: 1.7;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto 24px;
}

/* Hero video */
.hero-video {
  max-width: 700px;
  margin: 0 auto 32px;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.12);
}

.hero-video video {
  width: 100%;
  display: block;
}

.hero-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  margin-bottom: 40px;
}

/* Hero stats */
.hero-stats {
  display: flex;
  justify-content: center;
  gap: 48px;
  padding-top: 40px;
  border-top: 1px solid var(--border-light);
}

.stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}

.stat-value {
  font-family: var(--font-heading);
  font-size: 28px;
  font-weight: 700;
  color: var(--accent);
}

.stat-label {
  font-size: 12px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
}

/* ===== BUTTONS ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 32px;
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 600;
  text-decoration: none;
  transition: all var(--transition);
  cursor: pointer;
  border: none;
}

.btn-primary {
  background: var(--accent);
  color: white;
  box-shadow: 0 2px 8px rgba(45, 90, 123, 0.25);
}

.btn-primary:hover {
  background: var(--accent-light);
  color: white;
  box-shadow: 0 4px 16px rgba(45, 90, 123, 0.35);
  transform: translateY(-1px);
}

.btn-secondary {
  background: transparent;
  color: var(--accent);
  border: 1.5px solid var(--border);
}

.btn-secondary:hover {
  border-color: var(--accent);
  background: var(--accent-bg);
}

.btn-lg {
  padding: 18px 40px;
  font-size: 17px;
  border-radius: var(--radius);
}

/* ===== SECTION HEADERS ===== */
.section-eyebrow {
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--accent);
  margin-bottom: 12px;
}

.section-title {
  font-family: var(--font-heading);
  font-size: clamp(28px, 4vw, 42px);
  font-weight: 700;
  color: var(--text);
  margin-bottom: 16px;
  letter-spacing: -0.01em;
  line-height: 1.15;
}

.section-subtitle {
  font-size: 17px;
  color: var(--text-secondary);
  max-width: 560px;
  margin: 0 auto;
  line-height: 1.7;
}

.section-header {
  text-align: center;
  margin-bottom: 60px;
}

/* ===== CONFIGURATOR SECTION ===== */
.configurator-section {
  padding: var(--section-pad) 0;
  background: var(--bg);
}

.configurator-wrap {
  max-width: 1100px;
  margin: 0 auto;
}

.configurator-frame {
  position: relative;
  width: 100%;
  padding-bottom: 62%;
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--surface);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-lg);
}

.configurator-frame iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: none;
}

.configurator-hint {
  text-align: center;
  margin-top: 16px;
  font-size: 14px;
  color: var(--text-muted);
}

/* ===== HOW IT WORKS ===== */
.how-it-works {
  padding: var(--section-pad) 0;
  background: var(--surface);
}

.steps-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
}

.step-card {
  text-align: center;
  padding: 32px 24px;
}

.step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--accent-bg-strong);
  color: var(--accent);
  font-family: var(--font-heading);
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 20px;
}

.step-title {
  font-family: var(--font-heading);
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--text);
}

.step-desc {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ===== FEATURES ===== */
.features {
  padding: var(--section-pad) 0;
  background: var(--bg);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.feature-card {
  background: var(--surface);
  border: 1px solid var(--border-light);
  border-radius: var(--radius);
  padding: 36px 28px;
  transition: all var(--transition);
}

.feature-card:hover {
  border-color: var(--border);
  box-shadow: var(--shadow);
  transform: translateY(-2px);
}

.feature-icon {
  font-size: 32px;
  margin-bottom: 16px;
}

.feature-title {
  font-family: var(--font-heading);
  font-size: 19px;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--text);
}

.feature-desc {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ===== BUILDING TYPES ===== */
.buildings {
  padding: var(--section-pad) 0;
  background: var(--surface);
}

.buildings-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.building-card {
  background: var(--bg);
  border: 1px solid var(--border-light);
  border-radius: var(--radius);
  padding: 32px 28px;
  text-align: center;
  transition: all var(--transition);
}

.building-card:hover {
  border-color: var(--accent);
  background: var(--accent-bg);
}

.building-icon {
  font-size: 40px;
  margin-bottom: 16px;
}

.building-card h3 {
  font-family: var(--font-heading);
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--text);
}

.building-card p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ===== CRAFTSMANSHIP ===== */
.craftsmanship {
  padding: var(--section-pad) 0;
  background: var(--bg-alt);
}

.craft-inner {
  max-width: 760px;
  margin: 0 auto;
}

.craft-content {
  text-align: center;
}

.craft-content p {
  font-size: 17px;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 32px;
}

.craft-list {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  text-align: left;
  max-width: 520px;
  margin: 0 auto;
}

.craft-list li {
  font-size: 15px;
  color: var(--text);
  padding-left: 28px;
  position: relative;
}

.craft-list li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--accent);
  font-weight: 700;
}

/* ===== CTA SECTION ===== */
.cta-section {
  padding: var(--section-pad) 0;
  background: var(--bg);
  text-align: center;
}

.cta-inner {
  max-width: 600px;
  margin: 0 auto;
}

.cta-actions {
  margin: 40px 0;
}

.cta-contact {
  margin-top: 32px;
  padding-top: 32px;
  border-top: 1px solid var(--border-light);
}

.cta-contact p {
  font-size: 14px;
  color: var(--text-muted);
  margin-bottom: 8px;
}

.contact-link {
  font-size: 18px;
  font-weight: 600;
  color: var(--accent);
}

/* ===== FOOTER ===== */
.footer {
  padding: 48px 0;
  background: var(--surface);
  border-top: 1px solid var(--border);
}

.footer-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
}

.footer-brand {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
}

.footer-tagline {
  font-size: 13px;
  color: var(--text-muted);
}

.footer-links {
  display: flex;
  gap: 28px;
}

.footer-links a {
  font-size: 14px;
  color: var(--text-secondary);
}

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

.footer-legal {
  font-size: 13px;
  color: var(--text-muted);
}

/* ===== SCROLL ANIMATIONS ===== */
.animate-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.animate-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Stagger cards */
.step-card.animate-in:nth-child(2) { transition-delay: 0.1s; }
.step-card.animate-in:nth-child(3) { transition-delay: 0.2s; }
.step-card.animate-in:nth-child(4) { transition-delay: 0.3s; }

.feature-card.animate-in:nth-child(2) { transition-delay: 0.08s; }
.feature-card.animate-in:nth-child(3) { transition-delay: 0.16s; }
.feature-card.animate-in:nth-child(4) { transition-delay: 0.24s; }
.feature-card.animate-in:nth-child(5) { transition-delay: 0.32s; }
.feature-card.animate-in:nth-child(6) { transition-delay: 0.40s; }

.building-card.animate-in:nth-child(2) { transition-delay: 0.08s; }
.building-card.animate-in:nth-child(3) { transition-delay: 0.16s; }
.building-card.animate-in:nth-child(4) { transition-delay: 0.24s; }
.building-card.animate-in:nth-child(5) { transition-delay: 0.32s; }
.building-card.animate-in:nth-child(6) { transition-delay: 0.40s; }

/* ===== RESPONSIVE ===== */
@media (max-width: 900px) {
  :root {
    --section-pad: var(--section-pad-mobile);
  }

  .nav { display: none; }
  .nav.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 70px;
    left: 0;
    right: 0;
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    padding: 24px;
    gap: 20px;
    box-shadow: var(--shadow);
  }

  .nav-toggle { display: flex; }

  .hero { padding: 100px 0 48px; }
  .hero-title { font-size: 36px; }
  .hero-subtitle { font-size: 16px; margin-bottom: 20px; }
  .hero-video { margin: 0 -8px 24px; border-radius: 8px; }
  .hero-actions { flex-direction: column; align-items: center; }
  .hero-stats { gap: 32px; }

  .steps-grid { grid-template-columns: repeat(2, 1fr); }
  .features-grid { grid-template-columns: 1fr; }
  .buildings-grid { grid-template-columns: repeat(2, 1fr); }
  .craft-list { grid-template-columns: 1fr; }

  .configurator-frame { padding-bottom: 75%; }

  .footer-links { flex-wrap: wrap; justify-content: center; }
}

@media (max-width: 600px) {
  .steps-grid { grid-template-columns: 1fr; }
  .buildings-grid { grid-template-columns: 1fr; }
  .hero-title { font-size: 28px; }
  .hero-subtitle { font-size: 15px; margin-bottom: 16px; }
  .hero-video { margin: 0 -16px 20px; border-radius: 0; }
  .hero-stats { flex-direction: row; gap: 20px; flex-wrap: wrap; justify-content: center; }
  .hero-actions { margin-bottom: 24px; }

  .configurator-frame { padding-bottom: 100%; }
}

/* ===== MOBILE CONFIGURATOR: Full-screen launch instead of iframe ===== */
.configurator-mobile { display: none; }

@media (max-width: 768px) {
  .configurator-desktop { display: none; }
  .configurator-mobile { display: block; }
}

.configurator-mobile-card {
  text-align: center;
  padding: 48px 24px;
  background: linear-gradient(135deg, #f8f4ef 0%, #fff 100%);
  border-radius: 16px;
  border: 2px solid #e8e0d8;
}

.configurator-mobile-icon {
  font-size: 64px;
  margin-bottom: 16px;
}

.configurator-mobile-card h3 {
  font-size: 24px;
  margin-bottom: 12px;
  color: var(--text, #2c2c2c);
}

.configurator-mobile-card p {
  color: var(--text-light, #666);
  margin-bottom: 24px;
  max-width: 320px;
  margin-left: auto;
  margin-right: auto;
}

/* ===== VIDEO SHOWCASE ===== */
.video-showcase {
  padding: 80px 0;
  background: var(--bg-alt, #F7F3ED);
}

.video-wrap {
  max-width: 900px;
  margin: 0 auto;
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
}

.video-wrap video {
  width: 100%;
  display: block;
}

/* ===== GALLERY ===== */
.gallery {
  padding: 80px 0;
  background: var(--bg, #FFFBF5);
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  max-width: 1100px;
  margin: 0 auto;
}

.gallery-item {
  position: relative;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  cursor: pointer;
}

.gallery-item:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.15);
}

.gallery-item--wide {
  grid-column: span 2;
}

.gallery-item img {
  width: 100%;
  height: 280px;
  object-fit: cover;
  display: block;
  transition: transform 0.4s ease;
}

.gallery-item--wide img {
  height: 320px;
}

.gallery-item:hover img {
  transform: scale(1.03);
}

.gallery-caption {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 16px 20px;
  background: linear-gradient(transparent, rgba(0, 0, 0, 0.7));
  color: #fff;
  font-size: 14px;
  font-weight: 500;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.gallery-item:hover .gallery-caption {
  opacity: 1;
}

/* Gallery responsive */
@media (max-width: 768px) {
  .gallery-grid {
    grid-template-columns: 1fr 1fr;
    gap: 12px;
  }
  
  .gallery-item--wide {
    grid-column: span 2;
  }
  
  .gallery-item img {
    height: 200px;
  }
  
  .gallery-item--wide img {
    height: 240px;
  }
  
  .gallery-caption {
    opacity: 1;
    font-size: 12px;
    padding: 10px 14px;
  }
}

@media (max-width: 480px) {
  .gallery-grid {
    grid-template-columns: 1fr;
  }
  
  .gallery-item--wide {
    grid-column: span 1;
  }
  
  .gallery-item img,
  .gallery-item--wide img {
    height: 220px;
  }
  
  .video-showcase {
    padding: 48px 0;
  }
  
  .video-wrap {
    border-radius: 8px;
    margin: 0 -16px;
  }
}