/* ==========================================================================
   CEDiscoveries - Civil Engineering Design System (Light Theme)
   Domain: cediscoveries.tech
   ========================================================================== */

:root {
  --bg-primary: #f8fafc;
  --bg-secondary: #f1f5f9;
  --bg-surface: #ffffff;
  --bg-surface-hover: #f8fafc;
  --bg-input: #ffffff;
  
  --border-color: #e2e8f0;
  --border-light: #f1f5f9;
  --border-accent: #d97706;

  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #64748b;
  --text-inverse: #ffffff;

  --accent-gold: #d97706;
  --accent-gold-hover: #b45309;
  --accent-blue: #2563eb;
  --accent-blue-hover: #1d4ed8;
  --accent-emerald: #059669;
  --accent-rose: #e11d48;
  
  --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.07), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
  --shadow-lg: 0 10px 20px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -4px rgba(0, 0, 0, 0.04);
  --shadow-glow: 0 0 20px rgba(217, 119, 6, 0.15);

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-full: 9999px;

  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  --container-max: 1240px;
  --header-height: 72px;
}

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

html {
  font-family: var(--font-sans);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  scroll-behavior: smooth;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
  background-color: var(--bg-primary);
  color: var(--text-primary);
}

a {
  color: inherit;
  text-decoration: none;
  transition: all 0.2s ease;
}

button, input, select, textarea {
  font-family: inherit;
  font-size: inherit;
  color: inherit;
}

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

.container {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
}

/* Typography Helpers */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.25;
  color: var(--text-primary);
}

.highlight {
  color: var(--accent-gold);
}

.mono-number {
  font-family: var(--font-mono);
  font-weight: 600;
}

/* Top Announcement Bar */
.announcement-bar {
  background: #0f172a;
  border-bottom: 1px solid #1e293b;
  font-size: 0.85rem;
  padding: 0.5rem 0;
  color: #cbd5e1;
}

.announcement-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
}

.announcement-content {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.badge-pulse {
  width: 8px;
  height: 8px;
  background-color: #f59e0b;
  border-radius: 50%;
  display: inline-block;
  box-shadow: 0 0 0 0 rgba(245, 158, 11, 0.7);
  animation: pulse-ring 1.8s infinite;
}

@keyframes pulse-ring {
  0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(245, 158, 11, 0.7); }
  70% { transform: scale(1.1); box-shadow: 0 0 0 8px rgba(245, 158, 11, 0); }
  100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(245, 158, 11, 0); }
}

.announcement-contacts {
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

.top-contact-link {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  color: #cbd5e1;
}
.top-contact-link:hover {
  color: #f59e0b;
}

/* Header & Navigation */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
  height: var(--header-height);
  display: flex;
  align-items: center;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.logo-icon-wrap {
  width: 44px;
  height: 44px;
  background: #fffbeb;
  border: 1px solid #fde68a;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-gold);
  box-shadow: 0 2px 5px rgba(217, 119, 6, 0.1);
}

.brand-svg {
  width: 26px;
  height: 26px;
}

.brand-text {
  display: flex;
  flex-direction: column;
}

.brand-name {
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--text-primary);
}

.brand-domain {
  font-size: 0.7rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

/* Quick Search Bar */
.nav-search-wrapper {
  flex: 1;
  max-width: 380px;
  position: relative;
}

.search-input-box {
  display: flex;
  align-items: center;
  background-color: #f1f5f9;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-full);
  padding: 0.45rem 0.85rem;
  transition: all 0.2s ease;
}

.search-input-box:focus-within {
  background-color: #ffffff;
  border-color: var(--accent-gold);
  box-shadow: 0 0 0 3px rgba(217, 119, 6, 0.15);
}

.search-icon {
  width: 18px;
  height: 18px;
  color: var(--text-muted);
  margin-right: 0.5rem;
}

.search-input-box input {
  background: transparent;
  border: none;
  outline: none;
  color: var(--text-primary);
  font-size: 0.85rem;
  width: 100%;
}

.search-input-box input::placeholder {
  color: var(--text-muted);
}

.search-shortcut {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  background-color: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: 4px;
  padding: 0.1rem 0.4rem;
  color: var(--text-secondary);
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
}

/* Search Dropdown */
.search-dropdown {
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  right: 0;
  background-color: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  max-height: 480px;
  overflow-y: auto;
  z-index: 1000;
  padding: 0.5rem;
}

.search-dropdown.hidden {
  display: none;
}

.search-group-title {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--accent-gold);
  padding: 0.5rem 0.6rem 0.25rem;
  font-weight: 700;
}

.search-result-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.65rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background-color 0.15s;
}

.search-result-item:hover {
  background-color: #f1f5f9;
}

.search-res-title {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-primary);
}

.search-res-badge {
  font-size: 0.7rem;
  padding: 0.15rem 0.45rem;
  border-radius: 4px;
  background-color: #fef3c7;
  color: #b45309;
  border: 1px solid #fde68a;
  font-weight: 600;
}

/* Nav Menu */
.nav-menu {
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

.nav-link {
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--text-secondary);
  padding: 0.4rem 0.2rem;
  position: relative;
}

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

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  right: 0;
  height: 2px;
  background-color: var(--accent-gold);
  border-radius: 2px;
}

.nav-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.45rem 1rem;
  font-size: 0.88rem;
  font-weight: 600;
  border-radius: var(--radius-full);
  transition: all 0.2s ease;
}

.admin-portal-btn {
  background: #fffbeb;
  color: var(--accent-gold);
  border: 1px solid #fde68a;
}

.admin-portal-btn:hover {
  background: var(--accent-gold);
  color: #ffffff;
  border-color: var(--accent-gold);
  box-shadow: 0 4px 10px rgba(217, 119, 6, 0.25);
}

/* Mobile Hamburger */
.mobile-toggle-btn {
  display: none;
  flex-direction: column;
  justify-content: space-around;
  width: 32px;
  height: 32px;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.mobile-toggle-btn span {
  width: 100%;
  height: 2px;
  background-color: var(--text-primary);
  border-radius: 2px;
  transition: all 0.3s;
}

/* Mobile Drawer */
.mobile-nav-drawer {
  display: none;
  position: fixed;
  top: var(--header-height);
  left: 0;
  right: 0;
  background-color: #ffffff;
  border-bottom: 1px solid var(--border-color);
  padding: 1.25rem 1.5rem;
  flex-direction: column;
  gap: 0.75rem;
  box-shadow: var(--shadow-lg);
  z-index: 99;
}

.mobile-nav-drawer.open {
  display: flex;
}

.mobile-nav-link {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-secondary);
  padding: 0.6rem 0;
  border-bottom: 1px solid #f1f5f9;
}

.mobile-nav-link:hover, .mobile-nav-link.active {
  color: var(--accent-gold);
}

.mobile-nav-link.admin-highlight {
  color: var(--accent-gold);
  margin-top: 0.5rem;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.6rem;
  font-weight: 600;
  font-size: 0.95rem;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.2s ease;
}

.btn-primary {
  background-color: var(--accent-gold);
  color: #ffffff;
  box-shadow: 0 4px 12px rgba(217, 119, 6, 0.25);
}

.btn-primary:hover {
  background-color: var(--accent-gold-hover);
  transform: translateY(-1px);
  box-shadow: 0 6px 16px rgba(217, 119, 6, 0.35);
}

.btn-outline {
  background: #ffffff;
  border-color: #cbd5e1;
  color: var(--text-primary);
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
}

.btn-outline:hover {
  background-color: #f1f5f9;
  border-color: #94a3b8;
}

.btn-whatsapp {
  background-color: #25D366;
  color: #ffffff;
  box-shadow: 0 4px 12px rgba(37, 211, 102, 0.25);
}

.btn-whatsapp:hover {
  background-color: #1eb956;
}

.btn-sm {
  padding: 0.4rem 0.85rem;
  font-size: 0.82rem;
}

/* Icons */
.icon-sm {
  width: 16px;
  height: 16px;
}
.icon-md {
  width: 20px;
  height: 20px;
}
.icon-lg {
  width: 28px;
  height: 28px;
}

/* Hero Section */
.hero-section {
  position: relative;
  padding: 5rem 0 4rem;
  background: radial-gradient(circle at 50% 15%, rgba(217, 119, 6, 0.06), transparent 70%),
              linear-gradient(180deg, #f8fafc 0%, #ffffff 100%);
  border-bottom: 1px solid var(--border-color);
}

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

.hero-badge-wrap {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: #fffbeb;
  border: 1px solid #fde68a;
  padding: 0.35rem 0.85rem;
  border-radius: var(--radius-full);
  font-size: 0.82rem;
  font-weight: 600;
  color: #b45309;
  margin-bottom: 1.5rem;
}

.hero-title {
  font-size: 3.25rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: 1.25rem;
  line-height: 1.15;
  color: var(--text-primary);
}

.hero-subtitle {
  font-size: 1.15rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 2rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 2.5rem;
}

.hero-features-list {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--text-muted);
}

.hero-feature-item {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.hero-feature-item svg {
  color: var(--accent-gold);
}

/* Interactive Hero Quick Calculator Card */
.hero-card {
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  box-shadow: var(--shadow-lg);
  position: relative;
  overflow: hidden;
}

.hero-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--accent-gold), var(--accent-blue));
}

.hero-card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.25rem;
}

.hero-card-title {
  font-size: 1.1rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--text-primary);
}

.badge-quick {
  background: #eff6ff;
  color: #1d4ed8;
  font-size: 0.72rem;
  padding: 0.2rem 0.5rem;
  border-radius: 4px;
  font-weight: 600;
  border: 1px solid #dbeafe;
}

/* Quick Bar Form */
.quick-calc-form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.form-group label {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.form-control {
  background-color: var(--bg-input);
  border: 1px solid #cbd5e1;
  border-radius: var(--radius-sm);
  padding: 0.65rem 0.85rem;
  color: var(--text-primary);
  font-size: 0.92rem;
  outline: none;
  transition: all 0.2s;
}

.form-control:focus {
  border-color: var(--accent-gold);
  box-shadow: 0 0 0 3px rgba(217, 119, 6, 0.15);
}

.quick-result-display {
  background: #f8fafc;
  border: 1px dashed #cbd5e1;
  border-radius: var(--radius-md);
  padding: 1rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 0.5rem;
}

.res-label {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.res-val {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--accent-gold);
  font-family: var(--font-mono);
}

/* Stats Counter Section */
.stats-section {
  padding: 3rem 0;
  background-color: #ffffff;
  border-bottom: 1px solid var(--border-color);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
  text-align: center;
}

.stat-item {
  padding: 1rem;
}

.stat-number {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--text-primary);
  font-family: var(--font-mono);
  margin-bottom: 0.25rem;
}

.stat-label {
  font-size: 0.88rem;
  color: var(--text-secondary);
  font-weight: 600;
}

/* Section Header Shared */
.section-header {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 3rem;
}

.section-tag {
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent-gold);
  margin-bottom: 0.5rem;
  display: block;
}

.section-title {
  font-size: 2.25rem;
  font-weight: 800;
  margin-bottom: 0.75rem;
  letter-spacing: -0.02em;
  color: var(--text-primary);
}

.section-desc {
  font-size: 1rem;
  color: var(--text-secondary);
}

/* Calculators Hub Grid */
.calculators-section {
  padding: 5rem 0;
  background-color: var(--bg-primary);
}

.calc-filter-tabs {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 2.5rem;
}

.filter-tab-btn {
  background: #ffffff;
  border: 1px solid var(--border-color);
  padding: 0.45rem 1rem;
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
  cursor: pointer;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.04);
  transition: all 0.2s ease;
}

.filter-tab-btn:hover, .filter-tab-btn.active {
  background-color: var(--accent-gold);
  color: #ffffff;
  border-color: var(--accent-gold);
  box-shadow: 0 4px 10px rgba(217, 119, 6, 0.25);
}

.tools-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.75rem;
}

.tool-card {
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  cursor: pointer;
  transition: all 0.25s ease;
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.tool-card:hover {
  transform: translateY(-4px);
  border-color: #fde68a;
  box-shadow: var(--shadow-lg), var(--shadow-glow);
}

.tool-card-icon {
  width: 52px;
  height: 52px;
  background: #fffbeb;
  border: 1px solid #fde68a;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-gold);
  margin-bottom: 1.25rem;
}

.tool-card-category {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  font-weight: 700;
  margin-bottom: 0.35rem;
}

.tool-card-title {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}

.tool-card-desc {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.5;
  margin-bottom: 1.5rem;
}

.tool-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 1rem;
  border-top: 1px solid var(--border-color);
  font-size: 0.82rem;
  color: var(--accent-gold);
  font-weight: 700;
}

/* Calculator Detailed Working Pane */
.calc-workbench-card {
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  margin-bottom: 3rem;
}

.calc-workbench-header {
  background: #f8fafc;
  padding: 1.5rem 2rem;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.calc-header-info h2 {
  font-size: 1.45rem;
  margin-bottom: 0.25rem;
  color: var(--text-primary);
}

.calc-header-info p {
  font-size: 0.88rem;
  color: var(--text-secondary);
}

.calc-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.calc-workbench-body {
  display: grid;
  grid-template-columns: 1fr 1.15fr;
  min-height: 520px;
}

.calc-inputs-pane {
  padding: 2rem;
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  background: #ffffff;
}

.calc-outputs-pane {
  background: #f8fafc;
  padding: 2rem;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.results-summary-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
}

.result-stat-box {
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1rem;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
}

.result-stat-box.highlighted {
  border-color: #f59e0b;
  background: #fffbeb;
}

.result-stat-label {
  font-size: 0.75rem;
  text-transform: uppercase;
  color: var(--text-muted);
  font-weight: 700;
  letter-spacing: 0.03em;
  margin-bottom: 0.25rem;
}

.result-stat-value {
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--text-primary);
  font-family: var(--font-mono);
}

.result-stat-unit {
  font-size: 0.8rem;
  color: var(--accent-gold);
  margin-left: 0.2rem;
  font-family: var(--font-sans);
}

.breakdown-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.88rem;
  margin-top: 0.5rem;
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.breakdown-table th {
  background: #f1f5f9;
  color: var(--text-primary);
  text-align: left;
  padding: 0.65rem 0.75rem;
  font-weight: 600;
  border-bottom: 1px solid var(--border-color);
}

.breakdown-table td {
  padding: 0.65rem 0.75rem;
  border-bottom: 1px solid var(--border-color);
  color: var(--text-secondary);
}

.breakdown-table tr:hover td {
  background-color: #f8fafc;
}

/* Projects Showcase */
.projects-section {
  padding: 5rem 0;
  background-color: var(--bg-secondary);
}

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

.project-card {
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all 0.25s ease;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-sm);
}

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

.project-image-wrap {
  position: relative;
  height: 240px;
  overflow: hidden;
}

.project-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

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

.project-badge-status {
  position: absolute;
  top: 1rem;
  right: 1rem;
  background: #059669;
  color: #ffffff;
  font-size: 0.72rem;
  font-weight: 700;
  padding: 0.25rem 0.65rem;
  border-radius: var(--radius-full);
  text-transform: uppercase;
}

.project-badge-status.ongoing {
  background: #d97706;
}

.project-body {
  padding: 1.5rem;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.project-cat {
  font-size: 0.75rem;
  color: var(--accent-gold);
  font-weight: 700;
  text-transform: uppercase;
  margin-bottom: 0.35rem;
}

.project-title {
  font-size: 1.25rem;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}

.project-meta {
  display: flex;
  gap: 1rem;
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 0.75rem;
}

.project-desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 1.25rem;
  flex: 1;
}

/* Articles Section */
.articles-section {
  padding: 5rem 0;
  background-color: var(--bg-primary);
}

.articles-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.75rem;
}

.article-card {
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all 0.25s ease;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-sm);
}

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

.article-thumb-wrap {
  height: 200px;
  overflow: hidden;
}

.article-thumb {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.article-card:hover .article-thumb {
  transform: scale(1.05);
}

.article-body {
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.article-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
}

.article-cat-badge {
  color: var(--accent-gold);
  font-weight: 700;
}

.article-title {
  font-size: 1.15rem;
  margin-bottom: 0.5rem;
  line-height: 1.35;
  color: var(--text-primary);
}

.article-excerpt {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 1.25rem;
  flex: 1;
}

/* Contact & Consultation */
.contact-section {
  padding: 5rem 0;
  background-color: var(--bg-secondary);
}

.contact-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 3.5rem;
}

.contact-info-card {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.direct-box {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
}

.direct-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background: #fffbeb;
  border: 1px solid #fde68a;
  color: var(--accent-gold);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.contact-form-wrap {
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 2rem;
  box-shadow: var(--shadow-lg);
}

/* Admin Dashboard */
.admin-dashboard {
  padding: 3rem 0 5rem;
  background: var(--bg-primary);
}

.admin-header-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 2rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--border-color);
  flex-wrap: wrap;
  gap: 1rem;
}

.admin-nav-tabs {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 2rem;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 0.5rem;
  flex-wrap: wrap;
}

.admin-tab-btn {
  background: transparent;
  border: none;
  padding: 0.65rem 1.25rem;
  color: var(--text-secondary);
  font-weight: 600;
  font-size: 0.92rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  transition: all 0.2s ease;
}

.admin-tab-btn:hover, .admin-tab-btn.active {
  background-color: #ffffff;
  color: var(--accent-gold);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}

.admin-stats-overview {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  margin-bottom: 2.5rem;
}

.admin-stat-card {
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  box-shadow: var(--shadow-sm);
}

/* Table Style for Admin */
.admin-data-table {
  width: 100%;
  border-collapse: collapse;
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.admin-data-table th {
  background: #f1f5f9;
  padding: 0.85rem 1rem;
  text-align: left;
  font-size: 0.82rem;
  text-transform: uppercase;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border-color);
}

.admin-data-table td {
  padding: 0.85rem 1rem;
  font-size: 0.88rem;
  border-bottom: 1px solid var(--border-color);
  color: var(--text-primary);
}

/* Floating WhatsApp Button */
.floating-whatsapp {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 58px;
  height: 58px;
  background: #25D366;
  color: #ffffff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 15px rgba(37, 211, 102, 0.4);
  z-index: 999;
  transition: all 0.25s ease;
}

.floating-whatsapp:hover {
  transform: scale(1.1);
  box-shadow: 0 6px 20px rgba(37, 211, 102, 0.6);
}

.wa-float-icon {
  width: 32px;
  height: 32px;
}

.floating-tooltip {
  position: absolute;
  right: calc(100% + 12px);
  background: #0f172a;
  color: #ffffff;
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.4rem 0.8rem;
  border-radius: var(--radius-sm);
  white-space: nowrap;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.2s;
  box-shadow: var(--shadow-md);
}

.floating-whatsapp:hover .floating-tooltip {
  opacity: 1;
}

/* Modals */
.modal-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(15, 23, 42, 0.55);
  backdrop-filter: blur(4px);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
}

.modal-backdrop.hidden {
  display: none;
}

.modal-card {
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  max-width: 720px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  position: relative;
  padding: 2.25rem;
  box-shadow: var(--shadow-lg);
  color: var(--text-primary);
}

.modal-close-btn {
  position: absolute;
  top: 1.25rem;
  right: 1.25rem;
  background: transparent;
  border: none;
  font-size: 1.75rem;
  color: var(--text-muted);
  cursor: pointer;
  line-height: 1;
}

.modal-close-btn:hover {
  color: var(--text-primary);
}

/* Toast Notifications */
.toast-container {
  position: fixed;
  bottom: 2rem;
  left: 2rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  z-index: 10000;
}

.toast {
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-left: 4px solid var(--accent-gold);
  border-radius: var(--radius-sm);
  padding: 0.75rem 1.25rem;
  font-size: 0.88rem;
  box-shadow: var(--shadow-md);
  color: var(--text-primary);
  animation: slide-in 0.3s ease;
}

@keyframes slide-in {
  from { transform: translateX(-100%); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}

/* Footer */
.site-footer {
  margin-top: auto;
  background-color: #0f172a;
  border-top: 1px solid #1e293b;
  padding: 4rem 0 2rem;
  color: #cbd5e1;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.25fr;
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-logo .brand-name {
  font-size: 1.5rem;
  color: #ffffff;
}

.footer-desc {
  font-size: 0.88rem;
  color: #94a3b8;
  line-height: 1.6;
  margin: 1rem 0 1.5rem;
}

.footer-socials {
  display: flex;
  gap: 0.75rem;
}

.social-link {
  width: 38px;
  height: 38px;
  border-radius: var(--radius-sm);
  background: #1e293b;
  border: 1px solid #334155;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #cbd5e1;
  transition: all 0.2s;
}

.social-link svg {
  width: 18px;
  height: 18px;
}

.social-link:hover {
  background-color: var(--accent-gold);
  color: #ffffff;
  border-color: var(--accent-gold);
}

.social-link.whatsapp-highlight:hover {
  background-color: #25D366;
  border-color: #25D366;
}

.footer-heading {
  font-size: 0.95rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 1.25rem;
  color: #ffffff;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  font-size: 0.88rem;
  color: #94a3b8;
}

.footer-links a:hover {
  color: #f59e0b;
  padding-left: 4px;
}

.contact-card-mini {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  font-size: 0.88rem;
  color: #94a3b8;
}

.contact-item {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.footer-bottom {
  padding-top: 2rem;
  border-top: 1px solid #1e293b;
  font-size: 0.82rem;
  color: #64748b;
}

.footer-bottom-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer-badges {
  display: flex;
  gap: 0.5rem;
}

.tech-badge {
  background: #1e293b;
  border: 1px solid #334155;
  color: #cbd5e1;
  padding: 0.2rem 0.5rem;
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
}

/* Print Styles */
@media print {
  body {
    background-color: #ffffff !important;
    color: #000000 !important;
  }
  .site-header, .site-footer, .announcement-bar, .floating-whatsapp, .calc-actions, .nav-search-wrapper, .filter-tab-btn {
    display: none !important;
  }
  .calc-workbench-card {
    border: none !important;
    box-shadow: none !important;
  }
  .calc-workbench-body {
    grid-template-columns: 1fr !important;
  }
  .calc-outputs-pane, .calc-inputs-pane {
    background: transparent !important;
    padding: 0 !important;
    border: none !important;
  }
  .breakdown-table th, .breakdown-table td {
    color: #000000 !important;
    border-color: #cbd5e1 !important;
  }
}

/* Responsive Media Queries */
@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
  .tools-grid, .articles-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .projects-grid {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
  }
  .calc-workbench-body {
    grid-template-columns: 1fr;
  }
  .calc-inputs-pane {
    border-right: none;
    border-bottom: 1px solid var(--border-color);
  }
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .nav-menu, .nav-search-wrapper {
    display: none;
  }
  .mobile-toggle-btn {
    display: flex;
  }
  .hero-title {
    font-size: 2.25rem;
  }
  .tools-grid, .articles-grid {
    grid-template-columns: 1fr;
  }
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  .footer-grid {
    grid-template-columns: 1fr;
  }
  .admin-stats-overview {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* ================= CEDISCOVERIES LIGHT THEME OVERRIDE ================= */
:root {
  --bg-primary: #f8fafc !important;
  --bg-secondary: #f1f5f9 !important;
  --bg-surface: #ffffff !important;
  --bg-surface-hover: #f8fafc !important;
  --bg-input: #ffffff !important;
  --border-color: #e2e8f0 !important;
  --border-light: #f1f5f9 !important;
  --border-accent: #d97706 !important;
  --text-primary: #0f172a !important;
  --text-secondary: #475569 !important;
  --text-muted: #64748b !important;
  --accent-gold: #d97706 !important;
}

body {
  background-color: #f8fafc !important;
  color: #0f172a !important;
}

h1, h2, h3, h4, h5, h6 {
  color: #0f172a !important;
}

.site-header {
  background-color: rgba(255, 255, 255, 0.96) !important;
  border-bottom: 1px solid #e2e8f0 !important;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04) !important;
}

.brand-name {
  color: #0f172a !important;
}

.search-input-box {
  background-color: #f1f5f9 !important;
  border-color: #e2e8f0 !important;
}

.search-input-box input {
  color: #0f172a !important;
}

.nav-link {
  color: #475569 !important;
}

.nav-link:hover, .nav-link.active {
  color: #0f172a !important;
}

.btn-outline {
  background: #ffffff !important;
  border-color: #cbd5e1 !important;
  color: #0f172a !important;
}

.btn-outline:hover {
  background: #f1f5f9 !important;
}

.hero-section {
  background: radial-gradient(circle at 50% 15%, rgba(217, 119, 6, 0.06), transparent 70%), linear-gradient(180deg, #f8fafc 0%, #ffffff 100%) !important;
  border-bottom: 1px solid #e2e8f0 !important;
}

.hero-card, .tool-card, .calc-workbench-card, .project-card, .article-card, .direct-box, .contact-form-wrap, .admin-stat-card, .admin-data-table, .modal-card {
  background: #ffffff !important;
  border-color: #e2e8f0 !important;
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05) !important;
  color: #0f172a !important;
}

.form-control {
  background: #ffffff !important;
  border: 1px solid #cbd5e1 !important;
  color: #0f172a !important;
}

.form-control:focus {
  border-color: #d97706 !important;
}

.calc-workbench-header, .calc-outputs-pane, .quick-result-display, .breakdown-table th, .admin-data-table th, .stats-section, .contact-section, .projects-section {
  background-color: #f8fafc !important;
  color: #0f172a !important;
}

.result-stat-box {
  background: #ffffff !important;
  border: 1px solid #e2e8f0 !important;
}

.result-stat-box.highlighted {
  background: #fffbeb !important;
  border-color: #f59e0b !important;
}

.result-stat-value, .stat-number, .tool-card-title, .project-title, .article-title {
  color: #0f172a !important;
}

.breakdown-table td, .admin-data-table td {
  color: #334155 !important;
  border-color: #e2e8f0 !important;
}

.filter-tab-btn {
  background: #ffffff !important;
  color: #475569 !important;
  border-color: #e2e8f0 !important;
}

.filter-tab-btn.active {
  background: #d97706 !important;
  color: #ffffff !important;
}

/* ================= CEDISCOVERIES LIGHT THEME OVERRIDE ================= */
:root {
  --bg-primary: #f8fafc !important;
  --bg-secondary: #f1f5f9 !important;
  --bg-surface: #ffffff !important;
  --bg-surface-hover: #f8fafc !important;
  --bg-input: #ffffff !important;
  --border-color: #e2e8f0 !important;
  --border-light: #f1f5f9 !important;
  --border-accent: #d97706 !important;
  --text-primary: #0f172a !important;
  --text-secondary: #475569 !important;
  --text-muted: #64748b !important;
  --accent-gold: #d97706 !important;
}

body {
  background-color: #f8fafc !important;
  color: #0f172a !important;
}

h1, h2, h3, h4, h5, h6 {
  color: #0f172a !important;
}

.site-header {
  background-color: rgba(255, 255, 255, 0.96) !important;
  border-bottom: 1px solid #e2e8f0 !important;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04) !important;
}

.brand-name {
  color: #0f172a !important;
}

.search-input-box {
  background-color: #f1f5f9 !important;
  border-color: #e2e8f0 !important;
}

.search-input-box input {
  color: #0f172a !important;
}

.nav-link {
  color: #475569 !important;
}

.nav-link:hover, .nav-link.active {
  color: #0f172a !important;
}

.btn-outline {
  background: #ffffff !important;
  border-color: #cbd5e1 !important;
  color: #0f172a !important;
}

.btn-outline:hover {
  background: #f1f5f9 !important;
}

.hero-section {
  background: radial-gradient(circle at 50% 15%, rgba(217, 119, 6, 0.06), transparent 70%), linear-gradient(180deg, #f8fafc 0%, #ffffff 100%) !important;
  border-bottom: 1px solid #e2e8f0 !important;
}

.hero-card, .tool-card, .calc-workbench-card, .project-card, .article-card, .direct-box, .contact-form-wrap, .admin-stat-card, .admin-data-table, .modal-card {
  background: #ffffff !important;
  border-color: #e2e8f0 !important;
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05) !important;
  color: #0f172a !important;
}

.form-control {
  background: #ffffff !important;
  border: 1px solid #cbd5e1 !important;
  color: #0f172a !important;
}

.form-control:focus {
  border-color: #d97706 !important;
}

.calc-workbench-header, .calc-outputs-pane, .quick-result-display, .breakdown-table th, .admin-data-table th, .stats-section, .contact-section, .projects-section {
  background-color: #f8fafc !important;
  color: #0f172a !important;
}

.result-stat-box {
  background: #ffffff !important;
  border: 1px solid #e2e8f0 !important;
}

.result-stat-box.highlighted {
  background: #fffbeb !important;
  border-color: #f59e0b !important;
}

.result-stat-value, .stat-number, .tool-card-title, .project-title, .article-title {
  color: #0f172a !important;
}

.breakdown-table td, .admin-data-table td {
  color: #334155 !important;
  border-color: #e2e8f0 !important;
}

.filter-tab-btn {
  background: #ffffff !important;
  color: #475569 !important;
  border-color: #e2e8f0 !important;
}

.filter-tab-btn.active {
  background: #d97706 !important;
  color: #ffffff !important;
}