/* =============================================
   KairosGrid Landing Page — styles.css
   ============================================= */

:root {
  --navy: #0D2B5E;
  --cyan: #00AEEF;
  --gradient: linear-gradient(135deg, #00AEEF 0%, #0D2B5E 100%);
  --bg-light: #F4F7FB;
  --text-primary: #0D2B5E;
  --text-secondary: #6B8BB5;
  --white: #ffffff;
  --border: #E2EAF4;
  --shadow-sm: 0 2px 8px rgba(13,43,94,0.08);
  --shadow-md: 0 8px 32px rgba(13,43,94,0.12);
  --shadow-lg: 0 24px 64px rgba(13,43,94,0.18);
  --radius: 12px;
  --radius-lg: 20px;
  --transition: 0.25s ease;
}

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

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

body {
  font-family: 'Roboto', sans-serif;
  font-weight: 400;
  color: var(--text-primary);
  background: var(--white);
  line-height: 1.6;
  overflow-x: hidden;
}

/* =============================================
   UTILITIES
   ============================================= */

.container {
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 24px;
}

.section-tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--cyan);
  background: rgba(0,174,239,0.08);
  border: 1px solid rgba(0,174,239,0.2);
  padding: 4px 14px;
  border-radius: 100px;
  margin-bottom: 16px;
}

.section-title {
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  font-weight: 500;
  color: var(--navy);
  line-height: 1.2;
  margin-bottom: 16px;
}

.section-subtitle {
  font-size: 1.1rem;
  font-weight: 300;
  color: var(--text-secondary);
  max-width: 560px;
  line-height: 1.7;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: 8px;
  font-family: 'Roboto', sans-serif;
  font-size: 0.95rem;
  font-weight: 500;
  cursor: pointer;
  border: none;
  text-decoration: none;
  transition: all var(--transition);
  white-space: nowrap;
}

.btn-primary {
  background: var(--gradient);
  color: var(--white);
  box-shadow: 0 4px 16px rgba(0,174,239,0.35);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0,174,239,0.45);
}

.btn-outline {
  background: transparent;
  color: var(--navy);
  border: 1.5px solid var(--border);
}
.btn-outline:hover {
  border-color: var(--cyan);
  color: var(--cyan);
}

.btn-lg {
  padding: 16px 32px;
  font-size: 1.05rem;
  border-radius: 10px;
}

/* =============================================
   NAVBAR
   ============================================= */

.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.navbar.scrolled {
  border-bottom-color: var(--border);
  box-shadow: var(--shadow-sm);
}

.navbar-inner {
  display: flex;
  align-items: center;
  height: 68px;
  gap: 32px;
}

.navbar-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  flex-shrink: 0;
}

.navbar-brand-name {
  font-size: 1.2rem;
  font-weight: 500;
  color: var(--navy);
  letter-spacing: -0.02em;
}

.navbar-nav {
  display: flex;
  align-items: center;
  gap: 8px;
  flex: 1;
  list-style: none;
}

.navbar-nav a {
  font-size: 0.9rem;
  font-weight: 400;
  color: var(--text-secondary);
  text-decoration: none;
  padding: 6px 12px;
  border-radius: 6px;
  transition: color var(--transition), background var(--transition);
}
.navbar-nav a:hover {
  color: var(--navy);
  background: var(--bg-light);
}

.navbar-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-left: auto;
}

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 8px;
  border: none;
  background: none;
  margin-left: auto;
}
.hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--navy);
  border-radius: 2px;
  transition: all var(--transition);
}

/* =============================================
   HERO
   ============================================= */

.hero {
  padding: 140px 0 100px;
  background: var(--white);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -120px;
  right: -120px;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(0,174,239,0.06) 0%, transparent 70%);
  pointer-events: none;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 64px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--cyan);
  background: rgba(0,174,239,0.08);
  border: 1px solid rgba(0,174,239,0.2);
  padding: 6px 14px;
  border-radius: 100px;
  margin-bottom: 24px;
}

.hero-badge-dot {
  width: 6px;
  height: 6px;
  background: var(--cyan);
  border-radius: 50%;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.3); }
}

.hero-headline {
  font-size: clamp(2rem, 4.5vw, 3.25rem);
  font-weight: 500;
  color: var(--navy);
  line-height: 1.15;
  letter-spacing: -0.03em;
  margin-bottom: 24px;
}

.hero-headline span {
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subheadline {
  font-size: 1.15rem;
  font-weight: 300;
  color: var(--text-secondary);
  line-height: 1.75;
  margin-bottom: 40px;
  max-width: 480px;
}

.hero-ctas {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 24px;
}

.btn-demo {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-secondary);
  text-decoration: none;
  transition: color var(--transition);
}
.btn-demo:hover { color: var(--navy); }

.btn-demo .play-icon {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--bg-light);
  border: 1.5px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition);
}
.btn-demo:hover .play-icon {
  background: var(--cyan);
  border-color: var(--cyan);
}
.btn-demo:hover .play-icon svg path {
  fill: white;
}

.hero-trust {
  font-size: 0.8rem;
  font-weight: 400;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}
.hero-trust-item {
  display: flex;
  align-items: center;
  gap: 5px;
}
.hero-trust-item svg {
  color: #22C55E;
}

/* Dashboard Mockup */
.hero-visual {
  position: relative;
}

.browser-frame {
  background: var(--white);
  border-radius: 14px;
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  border: 1px solid var(--border);
  transform: perspective(1200px) rotateY(-8deg) rotateX(2deg);
  transition: transform 0.6s ease;
}
.browser-frame:hover {
  transform: perspective(1200px) rotateY(-4deg) rotateX(1deg);
}

.browser-chrome {
  background: #F1F3F5;
  padding: 10px 14px;
  display: flex;
  align-items: center;
  gap: 10px;
  border-bottom: 1px solid var(--border);
}

.browser-dots {
  display: flex;
  gap: 5px;
}
.browser-dots span {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}
.browser-dots span:nth-child(1) { background: #FF5F57; }
.browser-dots span:nth-child(2) { background: #FEBC2E; }
.browser-dots span:nth-child(3) { background: #28C840; }

.browser-url {
  flex: 1;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 5px 12px;
  font-size: 0.75rem;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 6px;
}

.browser-content {
  background: var(--bg-light);
  padding: 16px;
}

/* App Dashboard inside browser */
.app-sidebar {
  display: none;
}

.app-topbar {
  background: var(--white);
  border-radius: 8px;
  padding: 10px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
  border: 1px solid var(--border);
}

.app-topbar-title {
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--navy);
}

.app-topbar-actions {
  display: flex;
  gap: 6px;
}

.app-badge {
  font-size: 0.68rem;
  padding: 3px 8px;
  border-radius: 4px;
  font-weight: 500;
}
.app-badge-blue { background: rgba(0,174,239,0.1); color: var(--cyan); }
.app-badge-green { background: rgba(34,197,94,0.1); color: #16A34A; }

.app-metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  margin-bottom: 12px;
}

.app-metric-card {
  background: var(--white);
  border-radius: 8px;
  padding: 12px;
  border: 1px solid var(--border);
}

.app-metric-label {
  font-size: 0.65rem;
  color: var(--text-secondary);
  font-weight: 400;
  margin-bottom: 4px;
}

.app-metric-value {
  font-size: 1.1rem;
  font-weight: 500;
  color: var(--navy);
  line-height: 1;
  margin-bottom: 2px;
}

.app-metric-trend {
  font-size: 0.62rem;
  color: #16A34A;
  font-weight: 500;
}

.app-charts {
  display: grid;
  grid-template-columns: 1.6fr 1fr;
  gap: 8px;
  margin-bottom: 12px;
}

.app-chart-card {
  background: var(--white);
  border-radius: 8px;
  padding: 12px;
  border: 1px solid var(--border);
}

.app-chart-title {
  font-size: 0.68rem;
  font-weight: 500;
  color: var(--navy);
  margin-bottom: 10px;
}

.chart-bars {
  display: flex;
  align-items: flex-end;
  gap: 5px;
  height: 56px;
}

.chart-bar {
  flex: 1;
  border-radius: 3px 3px 0 0;
  background: var(--gradient);
  opacity: 0.7;
  transition: opacity var(--transition);
}
.chart-bar:hover { opacity: 1; }
.chart-bar.active { opacity: 1; }

.pipeline-list {
  display: flex;
  flex-direction: column;
  gap: 5px;
}

.pipeline-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.65rem;
  color: var(--text-secondary);
}

.pipeline-bar-wrap {
  flex: 1;
  height: 5px;
  background: var(--bg-light);
  border-radius: 3px;
  margin: 0 8px;
  overflow: hidden;
}

.pipeline-bar-fill {
  height: 100%;
  border-radius: 3px;
  background: var(--gradient);
}

.app-alerts {
  background: var(--white);
  border-radius: 8px;
  padding: 12px;
  border: 1px solid var(--border);
}

.app-alerts-title {
  font-size: 0.68rem;
  font-weight: 500;
  color: var(--navy);
  margin-bottom: 8px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.alert-count {
  background: #EF4444;
  color: white;
  font-size: 0.6rem;
  padding: 1px 6px;
  border-radius: 10px;
}

.alert-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 0;
  border-bottom: 1px solid var(--bg-light);
  font-size: 0.65rem;
  color: var(--text-secondary);
}
.alert-item:last-child { border-bottom: none; }

.alert-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  flex-shrink: 0;
}
.alert-dot-red { background: #EF4444; }
.alert-dot-yellow { background: #F59E0B; }
.alert-dot-blue { background: var(--cyan); }

/* =============================================
   SOCIAL PROOF BAR
   ============================================= */

.social-proof {
  padding: 48px 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  background: var(--white);
}

.social-proof-label {
  text-align: center;
  font-size: 0.82rem;
  font-weight: 400;
  color: var(--text-secondary);
  margin-bottom: 28px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.logos-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

.logo-pill {
  padding: 8px 20px;
  border: 1.5px solid var(--border);
  border-radius: 100px;
  font-size: 0.85rem;
  font-weight: 500;
  color: #A0B4CF;
  background: var(--bg-light);
  transition: all var(--transition);
  letter-spacing: 0.02em;
}
.logo-pill:hover {
  color: var(--text-secondary);
  border-color: var(--text-secondary);
}

/* =============================================
   PROBLEM SECTION
   ============================================= */

.problems {
  padding: 100px 0;
  background: var(--bg-light);
}

.problems-header {
  text-align: center;
  margin-bottom: 56px;
}

.problems-header .section-subtitle {
  margin: 0 auto;
}

.problems-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.problem-card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 28px;
  border: 1.5px solid var(--border);
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}

.problem-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 3px;
  height: 100%;
  background: var(--gradient);
  opacity: 0;
  transition: opacity var(--transition);
}

.problem-card:hover {
  border-color: rgba(0,174,239,0.3);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}
.problem-card:hover::before { opacity: 1; }

.problem-icon {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: rgba(239,68,68,0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
  font-size: 1.3rem;
}

.problem-text {
  font-size: 0.9rem;
  font-weight: 400;
  color: var(--text-secondary);
  line-height: 1.65;
}

.problem-text strong {
  color: var(--navy);
  font-weight: 500;
}

/* =============================================
   SOLUTION SECTION
   ============================================= */

.solution {
  padding: 100px 0;
  background: var(--white);
}

.solution-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 80px;
}

.solution-visual {
  position: relative;
}

.solution-card-stack {
  position: relative;
  height: 380px;
}

.solution-card {
  position: absolute;
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 24px;
  border: 1.5px solid var(--border);
  box-shadow: var(--shadow-md);
}

.solution-card-main {
  width: 100%;
  top: 0;
  left: 0;
  z-index: 3;
}

.solution-card-back1 {
  width: calc(100% - 24px);
  top: 12px;
  left: 12px;
  z-index: 2;
  opacity: 0.6;
}

.solution-card-back2 {
  width: calc(100% - 48px);
  top: 24px;
  left: 24px;
  z-index: 1;
  opacity: 0.3;
}

.solution-card-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
}

.solution-card-icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: var(--gradient);
  display: flex;
  align-items: center;
  justify-content: center;
}

.solution-card-title {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--navy);
}
.solution-card-subtitle {
  font-size: 0.78rem;
  color: var(--text-secondary);
}

.solution-metric-row {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  margin-bottom: 16px;
}

.solution-metric {
  background: var(--bg-light);
  border-radius: 8px;
  padding: 12px;
}

.solution-metric-val {
  font-size: 1.5rem;
  font-weight: 500;
  color: var(--navy);
  line-height: 1;
  margin-bottom: 2px;
}

.solution-metric-label {
  font-size: 0.72rem;
  color: var(--text-secondary);
}

.solution-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.solution-list-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.solution-list-item::before {
  content: '';
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: rgba(34,197,94,0.12);
  border: 1.5px solid rgba(34,197,94,0.3);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='none'%3E%3Cpath d='M3 8l3.5 3.5L13 4.5' stroke='%2316A34A' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: center;
  background-size: 12px;
  flex-shrink: 0;
}

.solution-content .section-subtitle {
  margin-bottom: 32px;
}

.solution-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 40px;
  padding-top: 40px;
  border-top: 1px solid var(--border);
}

.solution-stat-value {
  font-size: 2rem;
  font-weight: 500;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
  margin-bottom: 4px;
}

.solution-stat-label {
  font-size: 0.8rem;
  color: var(--text-secondary);
  font-weight: 300;
}

/* =============================================
   FEATURES SECTION
   ============================================= */

.features {
  padding: 100px 0;
  background: var(--bg-light);
}

.features-header {
  text-align: center;
  margin-bottom: 64px;
}
.features-header .section-subtitle {
  margin: 0 auto;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.feature-card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 28px 24px;
  border: 1.5px solid var(--border);
  transition: all var(--transition);
  text-align: left;
}

.feature-card:hover {
  border-color: rgba(0,174,239,0.35);
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
}

.feature-icon-wrap {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  background: var(--gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
  font-size: 1.4rem;
}

.feature-title {
  font-size: 1rem;
  font-weight: 500;
  color: var(--navy);
  margin-bottom: 8px;
}

.feature-desc {
  font-size: 0.87rem;
  font-weight: 300;
  color: var(--text-secondary);
  line-height: 1.65;
}

/* =============================================
   PRICING SECTION
   ============================================= */

.pricing {
  padding: 100px 0;
  background: var(--white);
}

.pricing-header {
  text-align: center;
  margin-bottom: 16px;
}

.pricing-toggle-wrap {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  margin-bottom: 56px;
}

.pricing-toggle-label {
  font-size: 0.9rem;
  color: var(--text-secondary);
  font-weight: 400;
}

.pricing-toggle {
  position: relative;
  width: 46px;
  height: 26px;
  background: var(--bg-light);
  border-radius: 100px;
  border: 1.5px solid var(--border);
  cursor: pointer;
  transition: background var(--transition);
}

.pricing-toggle.active {
  background: var(--cyan);
  border-color: var(--cyan);
}

.pricing-toggle-thumb {
  position: absolute;
  top: 2px;
  left: 2px;
  width: 18px;
  height: 18px;
  background: var(--white);
  border-radius: 50%;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition);
}
.pricing-toggle.active .pricing-toggle-thumb {
  transform: translateX(20px);
}

.pricing-badge-anual {
  font-size: 0.75rem;
  font-weight: 500;
  color: #16A34A;
  background: rgba(34,197,94,0.1);
  padding: 3px 10px;
  border-radius: 100px;
}

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

.pricing-card {
  border-radius: var(--radius-lg);
  padding: 36px 32px;
  border: 1.5px solid var(--border);
  background: var(--white);
  transition: all var(--transition);
  position: relative;
}

.pricing-card:hover {
  box-shadow: var(--shadow-md);
}

.pricing-card.featured {
  background: var(--navy);
  border-color: var(--navy);
  transform: scale(1.03);
  box-shadow: var(--shadow-lg);
}

.pricing-card-badge {
  position: absolute;
  top: -13px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--gradient);
  color: white;
  font-size: 0.72rem;
  font-weight: 500;
  padding: 4px 16px;
  border-radius: 100px;
  white-space: nowrap;
}

.pricing-plan-name {
  font-size: 1rem;
  font-weight: 500;
  color: var(--navy);
  margin-bottom: 4px;
}
.pricing-card.featured .pricing-plan-name { color: rgba(255,255,255,0.7); }

.pricing-plan-desc {
  font-size: 0.82rem;
  color: var(--text-secondary);
  margin-bottom: 28px;
  font-weight: 300;
}
.pricing-card.featured .pricing-plan-desc { color: rgba(255,255,255,0.5); }

.pricing-price {
  display: flex;
  align-items: flex-end;
  gap: 4px;
  margin-bottom: 32px;
}

.pricing-currency {
  font-size: 1.2rem;
  font-weight: 400;
  color: var(--navy);
  margin-bottom: 6px;
}
.pricing-card.featured .pricing-currency { color: var(--white); }

.pricing-amount {
  font-size: 3rem;
  font-weight: 500;
  color: var(--navy);
  line-height: 1;
}
.pricing-card.featured .pricing-amount { color: var(--white); }

.pricing-period {
  font-size: 0.82rem;
  color: var(--text-secondary);
  margin-bottom: 8px;
  font-weight: 300;
}
.pricing-card.featured .pricing-period { color: rgba(255,255,255,0.5); }

.pricing-cta {
  width: 100%;
  justify-content: center;
  margin-bottom: 28px;
}

.pricing-card.featured .pricing-cta {
  background: var(--gradient);
  color: white;
  box-shadow: 0 4px 16px rgba(0,174,239,0.4);
}

.pricing-features-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.pricing-feature-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.87rem;
  color: var(--text-secondary);
  font-weight: 300;
}
.pricing-card.featured .pricing-feature-item { color: rgba(255,255,255,0.7); }

.pricing-check {
  width: 16px;
  height: 16px;
  color: #16A34A;
  flex-shrink: 0;
  margin-top: 2px;
}
.pricing-card.featured .pricing-check { color: var(--cyan); }

.pricing-x {
  color: var(--border);
}

/* =============================================
   TESTIMONIALS
   ============================================= */

.testimonials {
  padding: 100px 0;
  background: var(--bg-light);
}

.testimonials-header {
  text-align: center;
  margin-bottom: 56px;
}

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

.testimonial-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 32px;
  border: 1.5px solid var(--border);
  transition: all var(--transition);
  display: flex;
  flex-direction: column;
}

.testimonial-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
}

.testimonial-stars {
  display: flex;
  gap: 3px;
  margin-bottom: 16px;
}

.star {
  color: #F59E0B;
  font-size: 0.9rem;
}

.testimonial-quote {
  font-size: 0.95rem;
  font-weight: 300;
  color: var(--text-secondary);
  line-height: 1.75;
  flex: 1;
  margin-bottom: 24px;
  position: relative;
}

.testimonial-quote::before {
  content: '"';
  font-size: 4rem;
  color: rgba(0,174,239,0.1);
  position: absolute;
  top: -16px;
  left: -8px;
  font-family: Georgia, serif;
  line-height: 1;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 12px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
}

.testimonial-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  font-weight: 500;
  color: white;
  flex-shrink: 0;
}

.testimonial-name {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--navy);
}

.testimonial-role {
  font-size: 0.78rem;
  color: var(--text-secondary);
  font-weight: 300;
}

/* =============================================
   FINAL CTA
   ============================================= */

.cta-section {
  padding: 100px 0;
  background: var(--navy);
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  top: -200px;
  left: -200px;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(0,174,239,0.15) 0%, transparent 70%);
  pointer-events: none;
}

.cta-section::after {
  content: '';
  position: absolute;
  bottom: -200px;
  right: -200px;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(0,174,239,0.1) 0%, transparent 70%);
  pointer-events: none;
}

.cta-inner {
  text-align: center;
  position: relative;
  z-index: 1;
}

.cta-title {
  font-size: clamp(1.75rem, 3.5vw, 2.75rem);
  font-weight: 500;
  color: var(--white);
  margin-bottom: 16px;
  line-height: 1.2;
}

.cta-subtitle {
  font-size: 1.1rem;
  font-weight: 300;
  color: rgba(255,255,255,0.6);
  margin-bottom: 40px;
  max-width: 520px;
  margin-left: auto;
  margin-right: auto;
}

.cta-buttons {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

.btn-white {
  background: var(--white);
  color: var(--navy);
}
.btn-white:hover {
  background: var(--bg-light);
  transform: translateY(-2px);
}

.btn-ghost {
  background: transparent;
  color: rgba(255,255,255,0.75);
  border: 1.5px solid rgba(255,255,255,0.2);
}
.btn-ghost:hover {
  background: rgba(255,255,255,0.08);
  color: var(--white);
  border-color: rgba(255,255,255,0.4);
}

.cta-trust {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 24px;
  flex-wrap: wrap;
  margin-top: 32px;
  font-size: 0.82rem;
  color: rgba(255,255,255,0.4);
  font-weight: 300;
}

.cta-trust-item {
  display: flex;
  align-items: center;
  gap: 6px;
}

/* =============================================
   FOOTER
   ============================================= */

.footer {
  background: #081A3D;
  padding: 60px 0 32px;
  color: rgba(255,255,255,0.5);
}

.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}

.footer-brand-name {
  font-size: 1.1rem;
  font-weight: 500;
  color: var(--white);
  margin-top: 12px;
  margin-bottom: 8px;
}

.footer-brand-desc {
  font-size: 0.85rem;
  font-weight: 300;
  line-height: 1.65;
  max-width: 280px;
}

.footer-col-title {
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--white);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 16px;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-links a {
  font-size: 0.87rem;
  font-weight: 300;
  color: rgba(255,255,255,0.45);
  text-decoration: none;
  transition: color var(--transition);
}
.footer-links a:hover { color: var(--white); }

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  padding-top: 28px;
  border-top: 1px solid rgba(255,255,255,0.08);
  font-size: 0.82rem;
  font-weight: 300;
}

.footer-bottom-links {
  display: flex;
  gap: 20px;
}
.footer-bottom-links a {
  color: rgba(255,255,255,0.35);
  text-decoration: none;
  transition: color var(--transition);
}
.footer-bottom-links a:hover { color: var(--white); }

/* =============================================
   ANIMATIONS
   ============================================= */

.fade-in-up {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.55s ease, transform 0.55s ease;
}

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

/* stagger delays */
.delay-1 { transition-delay: 0.1s; }
.delay-2 { transition-delay: 0.2s; }
.delay-3 { transition-delay: 0.3s; }
.delay-4 { transition-delay: 0.4s; }
.delay-5 { transition-delay: 0.5s; }

/* =============================================
   RESPONSIVE
   ============================================= */

@media (max-width: 1024px) {
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-top {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  .navbar-nav,
  .navbar-actions .btn-outline {
    display: none;
  }

  .hamburger {
    display: flex;
  }

  .hero {
    padding: 110px 0 64px;
  }

  .hero-grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .hero-visual {
    order: -1;
  }

  .browser-frame {
    transform: none;
  }

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

  .solution-grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .solution-card-stack {
    height: 280px;
  }

  .solution-stats {
    grid-template-columns: repeat(3, 1fr);
  }

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

  .pricing-grid {
    grid-template-columns: 1fr;
    max-width: 420px;
    margin: 0 auto;
  }

  .pricing-card.featured {
    transform: none;
  }

  .testimonials-grid {
    grid-template-columns: 1fr;
    max-width: 480px;
    margin: 0 auto;
  }

  .footer-top {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .features-grid {
    grid-template-columns: 1fr;
  }

  .hero-ctas {
    flex-direction: column;
    align-items: flex-start;
  }

  .solution-stats {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .footer-top {
    grid-template-columns: 1fr;
  }
}

/* Mobile Nav Menu */
.mobile-menu {
  position: fixed;
  top: 68px;
  left: 0;
  right: 0;
  background: var(--white);
  border-bottom: 1px solid var(--border);
  padding: 20px 24px;
  display: none;
  flex-direction: column;
  gap: 8px;
  z-index: 999;
  box-shadow: var(--shadow-md);
}

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

.mobile-menu a {
  font-size: 1rem;
  font-weight: 400;
  color: var(--text-secondary);
  text-decoration: none;
  padding: 10px 12px;
  border-radius: 8px;
  transition: background var(--transition), color var(--transition);
}
.mobile-menu a:hover {
  background: var(--bg-light);
  color: var(--navy);
}

.mobile-menu .btn-primary {
  margin-top: 8px;
  width: 100%;
  justify-content: center;
}