/* ==========================================================================
   GREEN TOP COB - ORGANIC MODERN DESIGN SYSTEM (LIME PLASTER & EARTH)
   ========================================================================== */

:root {
  /* User Color Palette Tokens */
  --moss-green: #556B3F;      /* Primary brand color / living roof */
  --deep-forest: #263D2B;     /* Text, headers, dark backgrounds */
  --lime-plaster: #F1EBDD;    /* Main background */
  --warm-plaster: #E3D6BE;    /* Secondary background */
  --cob-brown: #9A6845;       /* Earth / structural accent */
  --terracotta: #B85C3A;      /* Buttons, highlights, secondary accent */
  --oxblood: #641F24;         /* Signature accent */
  --charcoal-earth: #292822;  /* Body text / deepest contrast */

  /* Page Background set explicitly to Lime Plaster */
  --bg-primary: var(--lime-plaster);
  --bg-secondary: var(--warm-plaster);
  --bg-dark: var(--deep-forest);
  --text-main: var(--charcoal-earth);
  --text-muted: #575246;
  --text-light: #F1EBDD;
  
  --brand-primary: var(--moss-green);
  --brand-secondary: var(--cob-brown);
  --accent-action: var(--terracotta);
  --accent-action-hover: #9e4a2b;
  --accent-signature: var(--oxblood);

  --border-light: rgba(154, 104, 69, 0.22);
  --border-strong: rgba(38, 61, 43, 0.3);
  
  --card-shadow: 0 10px 30px rgba(41, 40, 34, 0.06), 0 2px 6px rgba(41, 40, 34, 0.04);
  --card-shadow-hover: 0 18px 36px rgba(38, 61, 43, 0.12), 0 6px 12px rgba(38, 61, 43, 0.08);

  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-pill: 999px;

  --transition-fast: 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-normal: 0.35s cubic-bezier(0.16, 1, 0.3, 1);

  --font-family: 'Plus Jakarta Sans', 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-heading: 'Outfit', 'Plus Jakarta Sans', sans-serif;
}

/* Dark Mode Support */
[data-theme="dark"] {
  --bg-primary: #1b261d;
  --bg-secondary: #233427;
  --bg-dark: #121c14;
  --text-main: #f3efe6;
  --text-muted: #c4bdae;
  --text-light: #ffffff;
  
  --border-light: rgba(227, 214, 190, 0.15);
  --border-strong: rgba(85, 107, 63, 0.4);
  
  --card-shadow: 0 12px 32px rgba(0, 0, 0, 0.25);
  --card-shadow-hover: 0 20px 45px rgba(0, 0, 0, 0.4);
}

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

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

body {
  background-color: var(--lime-plaster) !important;
  color: var(--text-main);
  font-family: var(--font-family);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  transition: background-color var(--transition-normal), color var(--transition-normal);
}

[data-theme="dark"] body {
  background-color: var(--bg-primary) !important;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--deep-forest);
  line-height: 1.25;
  font-weight: 700;
  letter-spacing: -0.02em;
}

[data-theme="dark"] h1, 
[data-theme="dark"] h2, 
[data-theme="dark"] h3, 
[data-theme="dark"] h4 {
  color: var(--lime-plaster);
}

p {
  color: var(--text-main);
}

a {
  color: var(--brand-primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--terracotta);
}

.container {
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* ==========================================================================
   NAVIGATION BAR
   ========================================================================== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 1.2rem 0;
  transition: all var(--transition-normal);
  background: rgba(241, 235, 221, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-light);
}

[data-theme="dark"] .navbar {
  background: rgba(27, 38, 29, 0.9);
}

.navbar.scrolled {
  padding: 0.8rem 0;
  box-shadow: 0 4px 20px rgba(38, 61, 43, 0.08);
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-weight: 800;
  font-size: 1.3rem;
  color: var(--deep-forest);
  font-family: var(--font-heading);
}

[data-theme="dark"] .nav-brand {
  color: var(--lime-plaster);
}

.brand-icon {
  width: 40px;
  height: 40px;
  background: var(--moss-green);
  color: var(--lime-plaster);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 1.2rem;
  box-shadow: 0 4px 10px rgba(85, 107, 63, 0.3);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
  list-style: none;
}

.nav-link {
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--text-main);
  position: relative;
  padding: 0.4rem 0;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0%;
  height: 2px;
  background: var(--terracotta);
  transition: width var(--transition-fast);
  border-radius: 2px;
}

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

.nav-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.theme-toggle-btn {
  background: var(--warm-plaster);
  border: 1px solid var(--border-light);
  color: var(--text-main);
  width: 40px;
  height: 40px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  transition: all var(--transition-fast);
}

.theme-toggle-btn:hover {
  transform: rotate(15deg) scale(1.05);
  border-color: var(--moss-green);
}

/* Button Component System */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  padding: 0.8rem 1.6rem;
  font-weight: 700;
  font-size: 0.95rem;
  border-radius: var(--radius-pill);
  border: 2px solid transparent;
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
  font-family: var(--font-heading);
}

.btn-primary {
  background-color: var(--terracotta);
  color: var(--lime-plaster);
  box-shadow: 0 4px 14px rgba(184, 92, 58, 0.3);
}

.btn-primary:hover {
  background-color: var(--accent-action-hover);
  color: var(--lime-plaster);
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(184, 92, 58, 0.4);
}

.btn-secondary {
  background-color: var(--moss-green);
  color: var(--lime-plaster);
  box-shadow: 0 4px 14px rgba(85, 107, 63, 0.3);
}

.btn-secondary:hover {
  background-color: #455733;
  color: var(--lime-plaster);
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(85, 107, 63, 0.4);
}

.btn-outline {
  background: transparent;
  border-color: var(--deep-forest);
  color: var(--deep-forest);
}

[data-theme="dark"] .btn-outline {
  border-color: var(--warm-plaster);
  color: var(--warm-plaster);
}

.btn-outline:hover {
  background: var(--deep-forest);
  color: var(--lime-plaster);
  transform: translateY(-2px);
}

[data-theme="dark"] .btn-outline:hover {
  background: var(--warm-plaster);
  color: var(--deep-forest);
}

.btn-signature {
  background-color: var(--oxblood);
  color: var(--lime-plaster);
  box-shadow: 0 4px 14px rgba(100, 31, 36, 0.35);
}

.btn-signature:hover {
  background-color: #4d181c;
  color: var(--lime-plaster);
  transform: translateY(-2px);
}

/* ==========================================================================
   HERO SECTION
   ========================================================================== */
.hero {
  padding-top: 8.5rem;
  padding-bottom: 5rem;
  position: relative;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 3.5rem;
  align-items: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 1rem;
  background: var(--warm-plaster);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-pill);
  font-weight: 700;
  font-size: 0.85rem;
  color: var(--deep-forest);
  margin-bottom: 1.5rem;
}

[data-theme="dark"] .hero-badge {
  background: rgba(85, 107, 63, 0.3);
  color: var(--lime-plaster);
}

.badge-dot {
  width: 8px;
  height: 8px;
  background-color: var(--terracotta);
  border-radius: 50%;
  box-shadow: 0 0 0 3px rgba(184, 92, 58, 0.25);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(184, 92, 58, 0.5); }
  70% { box-shadow: 0 0 0 8px rgba(184, 92, 58, 0); }
  100% { box-shadow: 0 0 0 0 rgba(184, 92, 58, 0); }
}

.hero-title {
  font-size: 3.3rem;
  margin-bottom: 1.4rem;
  letter-spacing: -0.03em;
  color: var(--deep-forest);
}

.hero-title span.highlight {
  color: var(--moss-green);
}

.hero-subtitle {
  font-size: 1.2rem;
  color: var(--text-main);
  margin-bottom: 2.2rem;
  line-height: 1.6;
  max-width: 600px;
}

.hero-cta-group {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.hero-card-preview {
  position: relative;
}

.hero-img-container {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--card-shadow-hover);
  border: 4px solid var(--warm-plaster);
  background: var(--bg-dark);
}

.hero-img-container img {
  width: 100%;
  height: auto;
  display: block;
  transition: transform 0.5s ease;
}

.hero-card-preview:hover img {
  transform: scale(1.02);
}

.hero-floating-tag {
  position: absolute;
  bottom: -20px;
  left: -20px;
  background: var(--deep-forest);
  color: var(--lime-plaster);
  padding: 1rem 1.4rem;
  border-radius: var(--radius-md);
  box-shadow: 0 10px 30px rgba(0,0,0,0.3);
  border: 1px solid var(--moss-green);
  display: flex;
  align-items: center;
  gap: 0.8rem;
}

.floating-icon {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: var(--terracotta);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  color: var(--lime-plaster);
}

/* ==========================================================================
   BUSINESS IDEA SHOWCASE SECTION
   ========================================================================== */
.section {
  padding: 5.5rem 0;
}

.section-header {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 3.5rem auto;
}

.section-tag {
  color: var(--terracotta);
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-size: 0.85rem;
  margin-bottom: 0.5rem;
  display: block;
}

.section-title {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}

.section-description {
  font-size: 1.15rem;
  color: var(--text-main);
  line-height: 1.6;
}

.pitch-feature-box {
  background: var(--warm-plaster);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-lg);
  padding: 3rem;
  box-shadow: var(--card-shadow);
  margin-bottom: 3.5rem;
}

.feature-quote {
  font-size: 1.4rem;
  font-weight: 700;
  font-family: var(--font-heading);
  color: var(--deep-forest);
  margin-bottom: 1.5rem;
  border-left: 4px solid var(--terracotta);
  padding-left: 1.2rem;
}

.pitch-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2rem;
}

.pitch-card {
  background: var(--lime-plaster);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 2.2rem;
  transition: all var(--transition-normal);
  display: flex;
  flex-direction: column;
  position: relative;
}

.pitch-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--card-shadow-hover);
  border-color: var(--moss-green);
}

.pitch-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-sm);
  background: rgba(85, 107, 63, 0.15);
  color: var(--moss-green);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  margin-bottom: 1.4rem;
}

.pitch-card-title {
  font-size: 1.4rem;
  margin-bottom: 0.8rem;
}

.pitch-card-text {
  color: var(--text-main);
  font-size: 0.98rem;
  margin-bottom: 1.5rem;
  flex-grow: 1;
}

.pitch-highlights {
  list-style: none;
}

.pitch-highlights li {
  font-size: 0.9rem;
  color: var(--text-main);
  padding: 0.3rem 0;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.pitch-highlights li::before {
  content: "✓";
  color: var(--moss-green);
  font-weight: bold;
}

/* ==========================================================================
   HISTORY OF COB CONSTRUCTION SECTION
   ========================================================================== */
.history-section {
  background: var(--warm-plaster);
  border-top: 1px solid var(--border-light);
  border-bottom: 1px solid var(--border-light);
}

.history-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2rem;
  margin-bottom: 3.5rem;
}

.history-card {
  background: var(--lime-plaster);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-md);
  padding: 2.2rem;
  box-shadow: var(--card-shadow);
  transition: all var(--transition-normal);
  position: relative;
  display: flex;
  flex-direction: column;
}

.history-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--card-shadow-hover);
  border-color: var(--cob-brown);
}

.history-era {
  display: inline-block;
  font-size: 0.85rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--oxblood);
  background: rgba(100, 31, 36, 0.1);
  padding: 0.3rem 0.8rem;
  border-radius: var(--radius-pill);
  margin-bottom: 1rem;
  align-self: flex-start;
}

.history-card-title {
  font-size: 1.4rem;
  margin-bottom: 0.8rem;
  color: var(--deep-forest);
}

.history-card-text {
  font-size: 0.98rem;
  color: var(--text-main);
  line-height: 1.6;
}

.history-fact-banner {
  background: var(--lime-plaster);
  border: 2px dashed var(--cob-brown);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  text-align: center;
  box-shadow: var(--card-shadow);
}

/* ==========================================================================
   MODAL WINDOWS & CONTACT PORTAL
   ========================================================================== */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(38, 61, 43, 0.75);
  backdrop-filter: blur(8px);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
}

.modal-overlay.active {
  opacity: 1;
  visibility: visible;
}

.modal-container {
  background: var(--lime-plaster);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-lg);
  max-width: 680px;
  width: 100%;
  padding: 2.5rem;
  box-shadow: var(--card-shadow-hover);
  position: relative;
  transform: translateY(20px);
  transition: transform var(--transition-normal);
}

.modal-overlay.active .modal-container {
  transform: translateY(0);
}

.modal-close {
  position: absolute;
  top: 1.2rem;
  right: 1.2rem;
  background: transparent;
  border: none;
  font-size: 1.5rem;
  color: var(--text-muted);
  cursor: pointer;
}

.modal-close:hover {
  color: var(--terracotta);
}

.form-group {
  margin-bottom: 1.4rem;
}

.form-label {
  display: block;
  font-weight: 700;
  font-size: 0.9rem;
  margin-bottom: 0.4rem;
}

.form-input, .form-textarea {
  width: 100%;
  padding: 0.8rem 1rem;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  background: var(--warm-plaster);
  color: var(--text-main);
  font-family: var(--font-family);
  font-size: 0.95rem;
}

.form-input:focus, .form-textarea:focus {
  outline: none;
  border-color: var(--moss-green);
  box-shadow: 0 0 0 3px rgba(85, 107, 63, 0.2);
}

/* ==========================================================================
   FOOTER & RESPONSIVE LAYOUT
   ========================================================================== */
footer {
  background: var(--deep-forest);
  color: var(--lime-plaster);
  padding: 4rem 0 2rem 0;
  margin-top: 4rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-brand {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  margin-bottom: 1rem;
  color: var(--lime-plaster);
}

.footer-desc {
  color: #b3ac9e;
  max-width: 400px;
  font-size: 0.95rem;
}

.footer-links h4 {
  color: var(--lime-plaster);
  margin-bottom: 1rem;
  font-size: 1.1rem;
}

.footer-links ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.footer-links a {
  color: #c9c2b4;
  font-size: 0.9rem;
}

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

.footer-bottom {
  text-align: center;
  padding-top: 2rem;
  border-top: 1px solid rgba(241, 235, 221, 0.1);
  color: #9e978a;
  font-size: 0.88rem;
}

@media (max-width: 992px) {
  .hero-grid {
    grid-template-columns: 1fr;
  }
  .hero-title {
    font-size: 2.5rem;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
  }
  .hero-floating-tag {
    position: static;
    margin-top: 1rem;
  }
}