/* Trusof Business Marketplace - Executive B2B Collaboration Design System */
@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@400;500;600;700;800&family=Inter:wght@300;400;500;600;700&display=swap');

:root {
  --primary: #1e40af;
  --primary-hover: #1d4ed8;
  --primary-light: #eff6ff;
  --primary-tint: #dbeafe;
  
  --emerald: #059669;
  --emerald-hover: #047857;
  --emerald-light: #ecfdf5;
  
  --gold: #d97706;
  --gold-hover: #b45309;
  --gold-light: #fffbeb;
  --gold-badge: #fef3c7;
  
  --dark: #0f172a;
  --dark-surface: #1e293b;
  --gray-900: #0f172a;
  --gray-800: #1e293b;
  --gray-700: #334155;
  --gray-600: #475569;
  --gray-500: #64748b;
  --gray-400: #94a3b8;
  --gray-300: #cbd5e1;
  --gray-200: #e2e8f0;
  --gray-100: #f1f5f9;
  --gray-50: #f8fafc;
  --white: #ffffff;
  
  --shadow-xs: 0 1px 2px rgba(15, 23, 42, 0.05);
  --shadow-sm: 0 2px 4px rgba(15, 23, 42, 0.06), 0 1px 2px rgba(15, 23, 42, 0.04);
  --shadow-md: 0 8px 20px -3px rgba(15, 23, 42, 0.08), 0 3px 8px -2px rgba(15, 23, 42, 0.04);
  --shadow-lg: 0 20px 35px -5px rgba(15, 23, 42, 0.12), 0 8px 16px -4px rgba(15, 23, 42, 0.06);
  --shadow-xl: 0 30px 60px -12px rgba(15, 23, 42, 0.2);
  
  --radius-xs: 4px;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;
  
  --transition: all 0.22s cubic-bezier(0.16, 1, 0.3, 1);
}

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

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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background-color: var(--gray-50);
  color: var(--gray-800);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

h1, h2, h3, h4, h5, h6 {
  font-family: 'Plus Jakarta Sans', sans-serif;
  color: var(--dark);
  font-weight: 700;
  line-height: 1.25;
}

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

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

.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Header & Nav */
.site-header {
  background: var(--white);
  border-bottom: 1px solid var(--gray-200);
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: var(--shadow-xs);
}

.top-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 74px;
  gap: 24px;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: 1.45rem;
  font-weight: 800;
  color: var(--dark);
  letter-spacing: -0.5px;
}

.brand-logo .logo-badge {
  background: linear-gradient(135deg, var(--primary) 0%, #3b82f6 100%);
  color: var(--white);
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

.brand-logo svg {
  width: 30px;
  height: 30px;
  fill: var(--primary);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 24px;
  list-style: none;
}

.nav-item {
  font-size: 0.94rem;
  font-weight: 600;
  color: var(--gray-700);
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  transition: var(--transition);
}

.nav-item:hover, .nav-item.active {
  color: var(--primary);
  background: var(--primary-light);
}

.nav-cta {
  display: flex;
  align-items: center;
  gap: 12px;
}

/* Category Navigation Ribbon */
.category-bar {
  background: var(--white);
  border-top: 1px solid var(--gray-100);
  overflow-x: auto;
  scrollbar-width: none;
}

.category-bar::-webkit-scrollbar {
  display: none;
}

.category-list {
  display: flex;
  align-items: center;
  gap: 24px;
  list-style: none;
  padding: 10px 0;
  white-space: nowrap;
}

.category-link {
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--gray-600);
  padding: 6px 4px;
  border-bottom: 2px solid transparent;
  transition: var(--transition);
}

.category-link:hover, .category-link.active {
  color: var(--primary);
  border-bottom-color: var(--primary);
  font-weight: 600;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-weight: 700;
  font-size: 0.92rem;
  padding: 10px 22px;
  border-radius: var(--radius-full);
  border: 1.5px solid transparent;
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
}

.btn-sm {
  padding: 6px 16px;
  font-size: 0.82rem;
}

.btn-lg {
  padding: 14px 30px;
  font-size: 1.05rem;
}

.btn-primary {
  background: var(--primary);
  color: var(--white);
  border-color: var(--primary);
}

.btn-primary:hover {
  background: var(--primary-hover);
  border-color: var(--primary-hover);
  box-shadow: 0 4px 14px rgba(30, 64, 175, 0.35);
  transform: translateY(-1px);
}

.btn-emerald {
  background: var(--emerald);
  color: var(--white);
  border-color: var(--emerald);
}

.btn-emerald:hover {
  background: var(--emerald-hover);
  border-color: var(--emerald-hover);
  box-shadow: 0 4px 14px rgba(5, 150, 105, 0.35);
  transform: translateY(-1px);
}

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

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

.btn-dark {
  background: var(--dark);
  color: var(--white);
  border-color: var(--dark);
}

.btn-dark:hover {
  background: var(--dark-surface);
}

.btn-secondary {
  background: var(--gray-200);
  color: var(--gray-800);
}

.btn-secondary:hover {
  background: var(--gray-300);
}

/* Badges */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 10px;
  border-radius: var(--radius-full);
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.3px;
}

.badge-featured {
  background: var(--gold-badge);
  color: #92400e;
  border: 1px solid rgba(217, 119, 6, 0.3);
}

.badge-verified {
  background: var(--emerald-light);
  color: var(--emerald);
  border: 1px solid rgba(5, 150, 105, 0.3);
}

.badge-model {
  background: var(--primary-light);
  color: var(--primary);
  border: 1px solid rgba(30, 64, 175, 0.2);
}

/* Top Storage Bar */
.gdrive-storage-banner {
  background: linear-gradient(135deg, #0f172a 0%, #1e3a8a 100%);
  color: var(--white);
  padding: 10px 0;
  font-size: 0.86rem;
  font-weight: 500;
}

.gdrive-storage-banner .content {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  flex-wrap: wrap;
}

/* Hero Section */
.hero-section {
  position: relative;
  background: linear-gradient(180deg, #eff6ff 0%, var(--gray-50) 100%);
  padding: 64px 0 84px;
  border-bottom: 1px solid var(--gray-200);
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  align-items: center;
  gap: 48px;
}

.hero-title {
  font-size: 3.2rem;
  letter-spacing: -1.2px;
  color: var(--dark);
  margin-bottom: 20px;
  line-height: 1.18;
}

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

.hero-title span.earn-highlight {
  color: var(--emerald);
}

.hero-subtitle {
  font-size: 1.15rem;
  color: var(--gray-700);
  margin-bottom: 32px;
  line-height: 1.6;
  max-width: 580px;
}

/* Interactive ROI Calculator Card */
.roi-calculator-card {
  background: var(--white);
  border-radius: var(--radius-xl);
  padding: 28px;
  border: 1px solid var(--gray-200);
  box-shadow: var(--shadow-xl);
  position: relative;
}

.roi-calc-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--gray-100);
}

.slider-container {
  margin: 20px 0;
}

.slider-labels {
  display: flex;
  justify-content: space-between;
  font-size: 0.85rem;
  color: var(--gray-500);
  font-weight: 600;
  margin-top: 6px;
}

.calc-slider {
  width: 100%;
  height: 8px;
  border-radius: 4px;
  background: var(--gray-200);
  outline: none;
  cursor: pointer;
  accent-color: var(--primary);
}

.calc-metric-box {
  background: linear-gradient(135deg, #f8fafc 0%, #eff6ff 100%);
  border: 1.5px solid var(--primary-tint);
  border-radius: var(--radius-lg);
  padding: 20px;
  margin-top: 20px;
  text-align: center;
}

.calc-metric-box .label {
  font-size: 0.82rem;
  text-transform: uppercase;
  color: var(--gray-600);
  font-weight: 700;
  letter-spacing: 0.5px;
}

.calc-metric-box .profit-value {
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--emerald);
  margin: 4px 0;
}

.calc-metric-box .details {
  font-size: 0.85rem;
  color: var(--gray-600);
}

/* Opportunity Cards */
.opportunities-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
  gap: 28px;
}

.opportunity-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  border: 1px solid var(--gray-200);
  overflow: hidden;
  box-shadow: var(--shadow-xs);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}

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

.opportunity-thumb {
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: var(--gray-200);
}

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

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

.opportunity-thumb .badge-pos {
  position: absolute;
  top: 14px;
  left: 14px;
}

.opportunity-body {
  padding: 20px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.opp-company {
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--primary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 4px;
}

.opp-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--dark);
  line-height: 1.35;
  margin-bottom: 12px;
}

.opp-financial-matrix {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  background: var(--gray-50);
  border: 1px solid var(--gray-200);
  padding: 12px 14px;
  border-radius: var(--radius-md);
  margin-bottom: 16px;
}

.opp-financial-matrix .item .lbl {
  font-size: 0.74rem;
  color: var(--gray-500);
  font-weight: 600;
  text-transform: uppercase;
}

.opp-financial-matrix .item .val {
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: 1.05rem;
  font-weight: 800;
  color: var(--dark);
}

.opp-financial-matrix .item .val-profit {
  color: var(--emerald);
}

.opp-desc {
  font-size: 0.88rem;
  color: var(--gray-600);
  line-height: 1.55;
  margin-bottom: 16px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.opportunity-footer {
  padding: 14px 20px;
  border-top: 1px solid var(--gray-100);
  background: var(--gray-50);
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: auto;
}

/* Modals */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(15, 23, 42, 0.65);
  backdrop-filter: blur(6px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2000;
  opacity: 0;
  pointer-events: none;
  transition: var(--transition);
  padding: 20px;
}

.modal-overlay.open {
  opacity: 1;
  pointer-events: auto;
}

.modal-dialog {
  background: var(--white);
  width: 100%;
  max-width: 620px;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
  overflow: hidden;
  transform: scale(0.96);
  transition: var(--transition);
  max-height: 90vh;
  display: flex;
  flex-direction: column;
}

.modal-overlay.open .modal-dialog {
  transform: scale(1);
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  border-bottom: 1px solid var(--gray-200);
  background: var(--gray-50);
}

.modal-title {
  font-size: 1.25rem;
  font-weight: 700;
}

.modal-close {
  background: transparent;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--gray-500);
}

.modal-body {
  padding: 24px;
  overflow-y: auto;
}

.modal-footer {
  padding: 16px 24px;
  border-top: 1px solid var(--gray-200);
  display: flex;
  justify-content: flex-end;
  gap: 12px;
  background: var(--gray-50);
}

/* Forms */
.form-group {
  margin-bottom: 18px;
}

.form-label {
  display: block;
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 6px;
}

.form-control {
  width: 100%;
  padding: 12px 16px;
  border: 1.5px solid var(--gray-300);
  border-radius: var(--radius-md);
  font-size: 0.95rem;
  color: var(--dark);
  outline: none;
  transition: var(--transition);
  font-family: inherit;
}

.form-control:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(30, 64, 175, 0.12);
}

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

/* Toast */
.toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 3000;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.toast {
  background: var(--dark);
  color: var(--white);
  padding: 14px 20px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-xl);
  font-size: 0.9rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 300px;
}

.toast.success {
  border-left: 4px solid var(--emerald);
}

/* Footer */
.site-footer {
  background: var(--dark);
  color: var(--gray-400);
  padding: 64px 0 32px;
  margin-top: auto;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr repeat(3, 1fr);
  gap: 48px;
  margin-bottom: 48px;
}

.footer-col h4 {
  color: var(--white);
  font-size: 1rem;
  margin-bottom: 20px;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-links a {
  color: var(--gray-400);
  font-size: 0.9rem;
  transition: var(--transition);
}

.footer-links a:hover {
  color: var(--white);
  padding-left: 4px;
}

.footer-bottom {
  padding-top: 32px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.85rem;
  flex-wrap: wrap;
  gap: 16px;
}

@media (max-width: 992px) {
  .hero-grid {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .hero-title {
    font-size: 2.3rem;
  }
  .opportunities-grid {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr;
  }
  .form-row {
    grid-template-columns: 1fr;
  }
  .nav-links {
    display: none;
  }
}