/* ==========================================================================
   AgriBridge — Global Agricultural Commodity Trading & Supply
   Modern, Lightweight, Responsive Stylesheet
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. CSS Custom Properties / Design Tokens
   -------------------------------------------------------------------------- */
:root {
  /* Colors */
  --color-primary: #0f382c;        /* Deep Agricultural Pine / Emerald */
  --color-primary-light: #164e3e;
  --color-primary-dark: #0a251d;
  --color-accent: #c88a35;         /* Golden Wheat / Harvest Amber */
  --color-accent-light: #dfa658;
  --color-accent-soft: rgba(200, 138, 53, 0.12);
  
  --color-bg: #f9f8f5;             /* Warm Natural Sand / Cream */
  --color-surface: #ffffff;
  --color-surface-soft: #f3efe6;
  --color-surface-translucent: rgba(255, 255, 255, 0.85);
  
  --color-text-main: #1f2723;      /* Deep Slate Charcoal */
  --color-text-muted: #596560;
  --color-text-light: #8b9691;
  
  --color-border: #e6e0d5;
  --color-border-light: rgba(255, 255, 255, 0.18);
  
  /* Status & Accents */
  --color-success: #1e7e4e;
  --color-success-bg: #eaf6ef;
  
  /* Typography */
  --font-heading: 'Outfit', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-body: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  
  /* Layout & Spacing */
  --container-max: 1200px;
  --container-padding: 1.5rem;
  --border-radius-sm: 6px;
  --border-radius-md: 12px;
  --border-radius-lg: 20px;
  --border-radius-full: 9999px;
  
  /* Shadows & Elevation */
  --shadow-sm: 0 2px 8px rgba(15, 56, 44, 0.04);
  --shadow-md: 0 8px 24px rgba(15, 56, 44, 0.08);
  --shadow-lg: 0 16px 40px rgba(15, 56, 44, 0.12);
  --shadow-glow: 0 0 35px rgba(200, 138, 53, 0.22);
  
  /* Transitions */
  --transition-fast: 0.18s ease;
  --transition-normal: 0.28s cubic-bezier(0.16, 1, 0.3, 1);
}

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

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

body {
  font-family: var(--font-body);
  background-color: var(--color-bg);
  color: var(--color-text-main);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  position: relative;
  overflow-x: hidden;
}

/* Atmospheric Ambient Background */
body::before {
  content: "";
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 100vh;
  pointer-events: none;
  z-index: -1;
  background: 
    radial-gradient(circle at 12% 18%, rgba(200, 138, 53, 0.09) 0%, transparent 40%),
    radial-gradient(circle at 88% 12%, rgba(22, 78, 62, 0.08) 0%, transparent 45%),
    radial-gradient(circle at 50% 85%, rgba(200, 138, 53, 0.06) 0%, transparent 50%),
    linear-gradient(180deg, #fbfaf7 0%, #f7f4ed 100%);
}

img, svg {
  max-width: 100%;
  display: block;
}

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

ul, ol {
  list-style: none;
}

/* --------------------------------------------------------------------------
   3. Typography
   -------------------------------------------------------------------------- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--color-primary-dark);
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.02em;
}

h1 { font-size: clamp(2.25rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.85rem, 3.5vw, 2.5rem); }
h3 { font-size: 1.45rem; }
h4 { font-size: 1.15rem; }

p {
  color: var(--color-text-muted);
  margin-bottom: 1rem;
}

p:last-child {
  margin-bottom: 0;
}

.text-gradient {
  background: linear-gradient(135deg, var(--color-primary) 20%, var(--color-accent) 95%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* --------------------------------------------------------------------------
   4. Layout & Containers
   -------------------------------------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--container-padding);
  padding-right: var(--container-padding);
}

.section {
  padding: 5.5rem 0;
  position: relative;
}

.section-sm {
  padding: 3.5rem 0;
}

.section-header {
  text-align: center;
  max-width: 740px;
  margin: 0 auto 3.5rem auto;
}

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-accent);
  background: var(--color-accent-soft);
  padding: 0.35rem 0.9rem;
  border-radius: var(--border-radius-full);
  margin-bottom: 1rem;
  border: 1px solid rgba(200, 138, 53, 0.25);
}

.section-header h2 {
  margin-bottom: 1rem;
}

.section-header p {
  font-size: 1.125rem;
  color: var(--color-text-muted);
}

/* --------------------------------------------------------------------------
   5. Navigation Header
   -------------------------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(251, 250, 247, 0.9);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  transition: all var(--transition-normal);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 80px;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-family: var(--font-heading);
  font-size: 1.45rem;
  font-weight: 800;
  color: var(--color-primary);
  letter-spacing: -0.03em;
}

.brand-logo-img {
  width: 44px;
  height: 44px;
  object-fit: contain;
  display: block;
  flex-shrink: 0;
  border-radius: 8px;
}

.brand-icon {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--color-primary), #1a4e3f);
  color: var(--color-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 10px rgba(15, 56, 44, 0.2);
}

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

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

.nav-link {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--color-text-muted);
  position: relative;
  padding: 0.5rem 0;
}

.nav-link:hover,
.nav-link.active {
  color: var(--color-primary);
}

.nav-link.active::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--color-accent);
  border-radius: 2px;
}

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

.nav-actions .btn {
  font-size: 0.95rem;
  padding: 0.65rem 1.35rem;
}

.mobile-nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  color: var(--color-primary-dark);
}

.mobile-menu {
  display: none;
}

/* --------------------------------------------------------------------------
   6. Buttons & Badges
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 600;
  padding: 0.8rem 1.6rem;
  border-radius: var(--border-radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
  border: 1px solid transparent;
  line-height: 1.2;
  text-align: center;
}

.btn-primary {
  background-color: var(--color-primary);
  color: #ffffff;
  box-shadow: 0 4px 14px rgba(15, 56, 44, 0.25);
}

.btn-primary:hover {
  background-color: var(--color-primary-light);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(15, 56, 44, 0.35);
  color: #ffffff;
}

.btn-accent {
  background-color: var(--color-accent);
  color: #ffffff;
  box-shadow: 0 4px 14px rgba(200, 138, 53, 0.3);
}

.btn-accent:hover {
  background-color: var(--color-accent-light);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(200, 138, 53, 0.4);
  color: #ffffff;
}

.btn-secondary {
  background-color: var(--color-surface);
  color: var(--color-primary);
  border-color: var(--color-border);
  box-shadow: var(--shadow-sm);
}

.btn-secondary:hover {
  background-color: var(--color-surface-soft);
  border-color: var(--color-accent);
  color: var(--color-primary-dark);
  transform: translateY(-2px);
}

.btn-outline-light {
  background: transparent;
  color: #ffffff;
  border-color: rgba(255, 255, 255, 0.35);
}

.btn-outline-light:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: #ffffff;
  color: #ffffff;
}

.btn-lg {
  padding: 1rem 2rem;
  font-size: 1.05rem;
}

.btn-sm {
  padding: 0.6rem 1.25rem;
  font-size: 0.95rem;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.25rem 0.65rem;
  border-radius: var(--border-radius-full);
}

.badge-green {
  background: rgba(22, 78, 62, 0.12);
  color: var(--color-primary);
}

.badge-gold {
  background: var(--color-accent-soft);
  color: #a86c1f;
}

/* --------------------------------------------------------------------------
   7. Hero Section
   -------------------------------------------------------------------------- */
.hero-section {
  padding: 4.5rem 0 5.5rem 0;
  position: relative;
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  align-items: center;
  gap: 3.5rem;
}

.hero-content {
  max-width: 650px;
}

.hero-title {
  margin-bottom: 1.5rem;
  letter-spacing: -0.03em;
}

.hero-subtitle {
  font-size: 1.18rem;
  line-height: 1.7;
  color: var(--color-text-muted);
  margin-bottom: 2rem;
}

.hero-cta-group {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 3rem;
}

.hero-stats-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  padding-top: 2rem;
  border-top: 1px solid var(--color-border);
}

.stat-item .stat-num {
  font-family: var(--font-heading);
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--color-primary);
  display: flex;
  align-items: baseline;
  gap: 0.15rem;
}

.stat-item .stat-num span {
  color: var(--color-accent);
}

.stat-item .stat-label {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--color-text-muted);
  line-height: 1.35;
}

/* Hero Visual / Graphic Card */
.hero-card {
  background: linear-gradient(145deg, #ffffff 0%, #f6f3eb 100%);
  border-radius: var(--border-radius-lg);
  padding: 2.2rem;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-lg);
  position: relative;
}

.hero-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.5rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--color-border);
}

.hero-card-title {
  font-size: 1.15rem;
  display: flex;
  align-items: center;
  gap: 0.6rem;
  color: var(--color-primary-dark);
}

.commodity-ticker {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.ticker-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.9rem 1.1rem;
  background: #ffffff;
  border-radius: var(--border-radius-md);
  border: 1px solid rgba(15, 56, 44, 0.08);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-fast);
}

.ticker-item:hover {
  transform: translateX(4px);
  border-color: var(--color-accent);
}

.ticker-info {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

.ticker-icon-wrap {
  width: 42px;
  height: 42px;
  border-radius: 10px;
  background: var(--color-surface-soft);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
}

.ticker-item h4 {
  font-size: 0.95rem;
  margin-bottom: 0.15rem;
}

.ticker-item p {
  font-size: 0.78rem;
  color: var(--color-text-light);
}

.hero-verification-badge {
  margin-top: 1.5rem;
  padding: 0.85rem 1rem;
  border-radius: var(--border-radius-md);
  background: var(--color-success-bg);
  border: 1px solid rgba(30, 126, 78, 0.25);
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.85rem;
  color: #175e39;
  font-weight: 600;
}

/* --------------------------------------------------------------------------
   8. Commodities Pillars Section
   -------------------------------------------------------------------------- */
.commodity-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.commodity-card {
  background: var(--color-surface);
  border-radius: var(--border-radius-lg);
  padding: 2.2rem;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-md);
  transition: all var(--transition-normal);
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
}

.commodity-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.commodity-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(200, 138, 53, 0.4);
}

.commodity-card:hover::before {
  opacity: 1;
}

.card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.5rem;
}

.card-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--border-radius-md);
  background: var(--color-surface-soft);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
}

.commodity-card h3 {
  margin-bottom: 0.75rem;
}

.commodity-card p {
  font-size: 0.95rem;
  line-height: 1.6;
  margin-bottom: 1.5rem;
  flex-grow: 1;
}

.item-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
}

.item-tag {
  font-size: 0.8rem;
  font-weight: 600;
  padding: 0.35rem 0.75rem;
  border-radius: var(--border-radius-sm);
  background: var(--color-bg);
  color: var(--color-text-main);
  border: 1px solid var(--color-border);
}

.card-specs-list {
  border-top: 1px solid var(--color-border);
  padding-top: 1.25rem;
  margin-top: auto;
}

.card-specs-list li {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin-bottom: 0.5rem;
}

.card-specs-list li:last-child {
  margin-bottom: 0;
}

.card-specs-list svg {
  color: var(--color-accent);
  flex-shrink: 0;
}

/* --------------------------------------------------------------------------
   9. Corridors & Supply Network
   -------------------------------------------------------------------------- */
.corridors-section {
  background: linear-gradient(180deg, rgba(22, 78, 62, 0.04) 0%, rgba(200, 138, 53, 0.04) 100%);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.corridor-cards-grid {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 2rem;
}

.corridor-card {
  background: #ffffff;
  padding: 2.5rem;
  border-radius: var(--border-radius-lg);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-md);
}

.corridor-header {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  margin-bottom: 1.5rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--color-border);
}

.corridor-icon {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: var(--color-primary);
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
}

.region-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.region-item {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
}

.region-item svg {
  color: var(--color-accent);
  margin-top: 0.2rem;
  flex-shrink: 0;
}

.region-item h4 {
  font-size: 0.95rem;
  margin-bottom: 0.15rem;
}

.region-item p {
  font-size: 0.825rem;
  color: var(--color-text-muted);
}

.corridor-flow-connector {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  padding: 1.5rem;
}

.connector-circle {
  width: 58px;
  height: 58px;
  border-radius: 50%;
  background: var(--color-accent);
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 15px rgba(200, 138, 53, 0.35);
}

.connector-text {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-text-muted);
}

/* --------------------------------------------------------------------------
   10. Value Propositions / Features
   -------------------------------------------------------------------------- */
.features-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.75rem;
}

.feature-box {
  background: #ffffff;
  padding: 2rem 1.75rem;
  border-radius: var(--border-radius-md);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-fast), border-color var(--transition-fast);
}

.feature-box:hover {
  transform: translateY(-4px);
  border-color: var(--color-accent);
}

.feature-icon-wrapper {
  width: 48px;
  height: 48px;
  border-radius: 10px;
  background: var(--color-accent-soft);
  color: var(--color-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
}

.feature-box h4 {
  margin-bottom: 0.6rem;
}

.feature-box p {
  font-size: 0.9rem;
  line-height: 1.55;
  color: var(--color-text-muted);
}

/* --------------------------------------------------------------------------
   11. Call to Action Banner
   -------------------------------------------------------------------------- */
.cta-banner {
  background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 70%, #153f31 100%);
  color: #ffffff;
  border-radius: var(--border-radius-lg);
  padding: 4.5rem 3.5rem;
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.cta-banner::before {
  content: "";
  position: absolute;
  top: -50%;
  right: -10%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(200, 138, 53, 0.18) 0%, transparent 70%);
  pointer-events: none;
}

.cta-banner-content {
  position: relative;
  z-index: 2;
  max-width: 680px;
}

.cta-banner h2 {
  color: #ffffff;
  margin-bottom: 1rem;
}

.cta-banner p {
  color: rgba(255, 255, 255, 0.85);
  font-size: 1.15rem;
  margin-bottom: 2rem;
}

.cta-banner .btn-group {
  display: flex;
  align-items: center;
  gap: 1.2rem;
  flex-wrap: wrap;
}

/* --------------------------------------------------------------------------
   12. About Page Specific Styles
   -------------------------------------------------------------------------- */
.about-hero {
  padding: 4.5rem 0 3.5rem 0;
  text-align: center;
}

.about-hero h1 {
  max-width: 820px;
  margin: 0 auto 1.5rem auto;
}

.about-hero p.lead {
  max-width: 840px;
  margin: 0 auto;
  font-size: 1.18rem;
  line-height: 1.7;
  color: var(--color-text-muted);
}

/* Mission & Vision Cards */
.mission-vision-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  margin-top: 3rem;
}

.mv-card {
  padding: 2.5rem;
  border-radius: var(--border-radius-lg);
  border: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.mv-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.mv-card.mission {
  background: linear-gradient(145deg, #ffffff 0%, #f6f3ea 100%);
  border-left: 5px solid var(--color-primary);
}

.mv-card.vision {
  background: linear-gradient(145deg, #ffffff 0%, #f5efe3 100%);
  border-left: 5px solid var(--color-accent);
}

.mv-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.25rem;
}

.mv-icon {
  width: 52px;
  height: 52px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.mv-card.mission .mv-icon {
  background: rgba(15, 56, 44, 0.1);
  color: var(--color-primary);
}

.mv-card.vision .mv-icon {
  background: var(--color-accent-soft);
  color: var(--color-accent);
}

.mv-card h3 {
  font-size: 1.4rem;
  color: var(--color-primary-dark);
}

.mv-card p {
  font-size: 1.05rem;
  line-height: 1.7;
  color: var(--color-text-main);
  margin-bottom: 0;
}

/* Operational Capabilities Section */
.capabilities-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.75rem;
}

.capability-card {
  background: #ffffff;
  padding: 2.2rem 1.8rem;
  border-radius: var(--border-radius-md);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  transition: all var(--transition-fast);
}

.capability-card:hover {
  transform: translateY(-4px);
  border-color: var(--color-accent);
  box-shadow: var(--shadow-md);
}

.capability-card.featured-wide {
  grid-column: span 1;
}

.capability-icon-wrap {
  width: 48px;
  height: 48px;
  border-radius: 10px;
  background: var(--color-surface-soft);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
}

.capability-card h3 {
  font-size: 1.15rem;
  margin-bottom: 0.75rem;
  color: var(--color-primary-dark);
}

.capability-card p {
  font-size: 0.925rem;
  line-height: 1.6;
  color: var(--color-text-muted);
  margin-bottom: 0;
}

.about-split-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 4rem;
}

.about-text-content h2 {
  margin-bottom: 1.25rem;
}

.about-text-content p {
  font-size: 1.05rem;
  line-height: 1.7;
  margin-bottom: 1.5rem;
}

.values-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
  margin-top: 2rem;
}

.value-item {
  background: #ffffff;
  padding: 1.5rem;
  border-radius: var(--border-radius-md);
  border: 1px solid var(--color-border);
}

.value-item h4 {
  font-size: 1.05rem;
  margin-bottom: 0.5rem;
  color: var(--color-primary);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.value-item p {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  line-height: 1.5;
  margin-bottom: 0;
}

.process-steps-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  position: relative;
}

.step-card {
  background: #ffffff;
  padding: 2.2rem 1.8rem;
  border-radius: var(--border-radius-lg);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
  position: relative;
}

.step-number {
  font-family: var(--font-heading);
  font-size: 2.5rem;
  font-weight: 800;
  color: rgba(200, 138, 53, 0.25);
  line-height: 1;
  margin-bottom: 1rem;
}

.step-card h3 {
  font-size: 1.15rem;
  margin-bottom: 0.75rem;
}

.step-card p {
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

/* --------------------------------------------------------------------------
   13. Contact Page & Form Styles
   -------------------------------------------------------------------------- */
.contact-layout-grid {
  display: grid;
  grid-template-columns: 1fr 1.35fr;
  gap: 3.5rem;
}

.contact-info-card {
  background: linear-gradient(160deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  color: #ffffff;
  border-radius: var(--border-radius-lg);
  padding: 3rem;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-lg);
}

.contact-info-card h2 {
  color: #ffffff;
  margin-bottom: 1rem;
}

.contact-info-card p.intro {
  color: rgba(255, 255, 255, 0.82);
  margin-bottom: 2.5rem;
  font-size: 1.05rem;
}

.contact-methods {
  display: flex;
  flex-direction: column;
  gap: 1.75rem;
  margin-bottom: 2.5rem;
}

.contact-method-item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
}

.contact-method-icon {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.12);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-accent-light);
  flex-shrink: 0;
}

.contact-method-item h4 {
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.6);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.25rem;
}

.contact-method-item a,
.contact-method-item p {
  color: #ffffff;
  font-size: 1rem;
  font-weight: 500;
  margin-bottom: 0;
}

.contact-method-item a:hover {
  color: var(--color-accent-light);
}

.operating-hours-box {
  margin-top: auto;
  padding: 1.25rem;
  border-radius: var(--border-radius-md);
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.12);
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.8);
}

/* Contact / RFQ Form */
.form-card {
  background: #ffffff;
  border-radius: var(--border-radius-lg);
  padding: 3rem;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-md);
}

.form-card-header {
  margin-bottom: 2rem;
}

.form-card-header h3 {
  font-size: 1.6rem;
  margin-bottom: 0.5rem;
}

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

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
}

.form-group.full-width {
  grid-column: span 2;
}

.form-label {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-primary-dark);
}

.form-label span.req {
  color: #dc3545;
}

.form-control {
  width: 100%;
  padding: 0.8rem 1rem;
  font-family: var(--font-body);
  font-size: 0.95rem;
  color: var(--color-text-main);
  background: #ffffff;
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-sm);
  transition: all var(--transition-fast);
}

.form-control:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(15, 56, 44, 0.12);
}

select.form-control {
  appearance: none;
  background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23596560' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6 9 12 15 18 9'%3e%3c/polyline%3e%3c/svg%3e");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  background-size: 1.1em;
  padding-right: 2.5rem;
  cursor: pointer;
}

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

.form-help-text {
  font-size: 0.775rem;
  color: var(--color-text-light);
}

.form-status {
  padding: 1rem;
  border-radius: var(--border-radius-sm);
  margin-bottom: 1.5rem;
  display: none;
  font-size: 0.9rem;
}

.form-status.success {
  display: block;
  background: var(--color-success-bg);
  color: #155724;
  border: 1px solid #c3e6cb;
}

.form-status.error {
  display: block;
  background: #f8d7da;
  color: #721c24;
  border: 1px solid #f5c6cb;
}

@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.spin-icon {
  animation: spin 1s linear infinite;
}

/* FAQ Accordion / Cards */
.faq-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.75rem;
  margin-top: 3rem;
}

.faq-card {
  background: #ffffff;
  padding: 1.8rem;
  border-radius: var(--border-radius-md);
  border: 1px solid var(--color-border);
}

.faq-card h4 {
  font-size: 1.05rem;
  margin-bottom: 0.75rem;
  color: var(--color-primary);
}

.faq-card p {
  font-size: 0.9rem;
  line-height: 1.6;
}

/* --------------------------------------------------------------------------
   14. Site Footer
   -------------------------------------------------------------------------- */
.site-footer {
  background: var(--color-primary-dark);
  color: #d8e2dc;
  padding: 4.5rem 0 2rem 0;
  margin-top: auto;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
  gap: 3rem;
  margin-bottom: 3.5rem;
}

.footer-brand .brand-logo {
  color: #ffffff;
  margin-bottom: 1.25rem;
}

.footer-brand p {
  color: #a4b4ad;
  font-size: 0.9rem;
  line-height: 1.65;
  margin-bottom: 1.5rem;
}

.footer-title {
  font-family: var(--font-heading);
  font-size: 1.05rem;
  color: #ffffff;
  margin-bottom: 1.25rem;
  font-weight: 700;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.footer-link {
  font-size: 0.9rem;
  color: #a4b4ad;
  transition: color var(--transition-fast);
}

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

.footer-contact-info {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  font-size: 0.88rem;
  color: #a4b4ad;
}

.footer-contact-item {
  display: flex;
  align-items: flex-start;
  gap: 0.65rem;
  line-height: 1.5;
}

.footer-contact-item svg {
  color: var(--color-accent);
  flex-shrink: 0;
  margin-top: 0.2rem;
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  font-size: 0.85rem;
  color: #83978f;
  flex-wrap: wrap;
  gap: 1rem;
}

/* --------------------------------------------------------------------------
   15. Responsive Styles
   -------------------------------------------------------------------------- */
@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 3rem;
  }
  
  .commodity-grid {
    grid-template-columns: 1fr;
  }

  .corridor-cards-grid {
    grid-template-columns: 1fr;
  }

  .corridor-flow-connector {
    transform: rotate(90deg);
    padding: 0.5rem 0;
  }

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

  .process-steps-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .about-split-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

  .mission-vision-grid {
    grid-template-columns: 1fr;
  }

  .capabilities-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

body.menu-open {
  overflow: hidden;
}

@media (max-width: 768px) {
  .section {
    padding: 3.5rem 0;
  }

  .hero-section {
    padding: 2rem 0 3.5rem 0;
  }

  .hero-title {
    font-size: clamp(2rem, 8vw, 2.45rem);
  }

  .hero-subtitle {
    font-size: 1.05rem;
    margin-bottom: 1.75rem;
  }

  .hero-cta-group .btn {
    width: 100%;
  }

  .brand-logo {
    font-size: 1.25rem;
  }

  .brand-logo-img {
    width: 38px;
    height: 38px;
  }

  .nav-links,
  .nav-actions .btn {
    display: none;
  }

  .mobile-nav-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border-radius: var(--border-radius-sm);
    background: var(--color-surface-soft);
    border: 1px solid var(--color-border);
    color: var(--color-primary-dark);
    cursor: pointer;
    transition: all var(--transition-fast);
  }

  .mobile-nav-toggle:hover,
  .mobile-nav-toggle:focus-visible {
    background: #ffffff;
    border-color: var(--color-accent);
    outline: none;
  }

  /* Mobile Drawer Menu */
  .mobile-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 2px solid var(--color-border);
    padding: 1.25rem var(--container-padding) 1.75rem var(--container-padding);
    box-shadow: 0 16px 36px rgba(15, 56, 44, 0.14);
    flex-direction: column;
    gap: 0.4rem;
    z-index: 999;
    max-height: calc(100vh - 80px);
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    animation: mobileMenuSlideDown 0.22s cubic-bezier(0.16, 1, 0.3, 1);
  }

  @keyframes mobileMenuSlideDown {
    from {
      opacity: 0;
      transform: translateY(-8px);
    }
    to {
      opacity: 1;
      transform: translateY(0);
    }
  }

  .mobile-menu.open {
    display: flex;
  }

  .mobile-menu .nav-link {
    font-size: 1.05rem;
    font-weight: 600;
    padding: 0.85rem 0.75rem;
    border-radius: var(--border-radius-sm);
    border-bottom: 1px solid rgba(15, 56, 44, 0.06);
    color: var(--color-text-main);
    display: flex;
    align-items: center;
    justify-content: space-between;
    transition: all var(--transition-fast);
  }

  .mobile-menu .nav-link:hover {
    background: var(--color-surface-soft);
    color: var(--color-primary);
  }

  .mobile-menu .nav-link.active {
    background: var(--color-accent-soft);
    color: var(--color-primary);
    border-bottom-color: transparent;
    font-weight: 700;
  }

  .mobile-menu .nav-link.active::after {
    display: none;
  }

  .mobile-menu .btn {
    width: 100%;
    margin-top: 0.75rem;
    padding: 0.9rem;
    font-size: 1rem;
  }

  /* Form & Input Optimization for Mobile */
  .form-control,
  select.form-control,
  textarea.form-control {
    font-size: 16px; /* Prevents auto-zoom on iOS */
    padding: 0.85rem 1rem;
  }

  .hero-stats-row {
    grid-template-columns: 1fr;
    gap: 1.25rem;
  }

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

  .process-steps-grid {
    grid-template-columns: 1fr;
  }

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

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

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

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

  .form-group.full-width {
    grid-column: span 1;
  }

  .form-card {
    padding: 2rem 1.25rem;
  }

  .contact-info-card {
    padding: 2rem 1.25rem;
  }

  .cta-banner {
    padding: 2.75rem 1.5rem;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 2.25rem;
  }
}

@media (max-width: 420px) {
  :root {
    --container-padding: 1rem;
  }

  .hero-card,
  .commodity-card,
  .capability-card,
  .step-card,
  .corridor-card {
    padding: 1.5rem 1.15rem;
  }

  .stat-item .stat-num {
    font-size: 1.5rem;
  }
}