/* ==========================================================================
   TravelSearch Official Website - Modern, Responsive Stylesheet
   Official Domain: https://travelsearch.site
   ========================================================================== */

:root {
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --color-primary: #0284c7;
  --color-primary-dark: #0369a1;
  --color-primary-light: #38bdf8;
  --color-primary-subtle: #e0f2fe;
  
  --color-navy: #0f172a;
  --color-navy-light: #1e293b;
  --color-navy-muted: #334155;
  
  --color-teal: #0d9488;
  --color-teal-light: #ccfbf1;
  --color-amber: #f59e0b;
  --color-amber-light: #fef3c7;
  --color-emerald: #10b981;
  --color-emerald-light: #d1fae5;
  --color-coral: #ef4444;
  
  --color-bg: #f8fafc;
  --color-surface: #ffffff;
  --color-surface-muted: #f1f5f9;
  --color-border: #e2e8f0;
  --color-border-subtle: #f1f5f9;
  
  --color-text-main: #0f172a;
  --color-text-muted: #64748b;
  --color-text-light: #94a3b8;
  
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --radius-full: 9999px;
  
  --shadow-sm: 0 1px 3px rgba(15, 23, 42, 0.06), 0 1px 2px rgba(15, 23, 42, 0.04);
  --shadow-md: 0 4px 16px -2px rgba(15, 23, 42, 0.08), 0 2px 6px -2px rgba(15, 23, 42, 0.05);
  --shadow-lg: 0 12px 30px -4px rgba(15, 23, 42, 0.1), 0 4px 12px -2px rgba(15, 23, 42, 0.05);
  --shadow-xl: 0 24px 50px -12px rgba(15, 23, 42, 0.18);
  --shadow-glow: 0 0 35px rgba(2, 132, 199, 0.25);
  
  --transition-fast: 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-smooth: 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

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

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

body {
  font-family: var(--font-sans);
  background-color: var(--color-bg);
  color: var(--color-text-main);
  line-height: 1.6;
  overflow-x: hidden;
}

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

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

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ==========================================================================
   Navigation Bar
   ========================================================================== */
.site-header {
  position: sticky;
  top: 0;
  left: 0;
  width: 100%;
  background-color: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  z-index: 1000;
  transition: all var(--transition-fast);
}

.site-header.scrolled {
  box-shadow: var(--shadow-sm);
  background-color: rgba(255, 255, 255, 0.96);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 800;
  font-size: 1.35rem;
  color: var(--color-navy);
  letter-spacing: -0.5px;
}

.brand-icon {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 10px rgba(2, 132, 199, 0.35);
  color: #fff;
  overflow: hidden;
}

.brand-icon img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

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

.brand-name .title {
  font-size: 1.25rem;
  line-height: 1.1;
  font-weight: 800;
  color: var(--color-navy);
}

.brand-name .domain-badge {
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--color-primary);
  letter-spacing: 0.2px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
}

.nav-link {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--color-navy-muted);
  transition: color var(--transition-fast);
  position: relative;
  padding: 6px 0;
}

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

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

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background-color: var(--color-primary);
  border-radius: 2px;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

.btn-header-apk {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background-color: var(--color-primary);
  color: #fff;
  font-size: 0.92rem;
  font-weight: 700;
  padding: 10px 18px;
  border-radius: var(--radius-full);
  box-shadow: 0 4px 12px rgba(2, 132, 199, 0.28);
  transition: all var(--transition-fast);
}

.btn-header-apk:hover {
  background-color: var(--color-primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(2, 132, 199, 0.35);
}

.mobile-menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  background-color: var(--color-surface);
}

.mobile-menu-toggle span {
  width: 22px;
  height: 2px;
  background-color: var(--color-navy);
  transition: all var(--transition-fast);
  border-radius: 2px;
}

/* ==========================================================================
   Hero Section
   ========================================================================== */
.hero-section {
  position: relative;
  padding: 70px 0 100px;
  background: radial-gradient(circle at 85% 20%, rgba(56, 189, 248, 0.12) 0%, rgba(248, 250, 252, 0) 60%),
              radial-gradient(circle at 15% 80%, rgba(13, 148, 136, 0.08) 0%, rgba(248, 250, 252, 0) 50%);
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  align-items: center;
  gap: 50px;
}

.hero-content {
  position: relative;
  z-index: 2;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background-color: var(--color-primary-subtle);
  color: var(--color-primary-dark);
  font-size: 0.85rem;
  font-weight: 700;
  padding: 6px 14px;
  border-radius: var(--radius-full);
  margin-bottom: 22px;
  border: 1px solid rgba(2, 132, 199, 0.2);
}

.hero-badge .pulse-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--color-emerald);
  box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.3);
}

.hero-title {
  font-size: 3.4rem;
  line-height: 1.12;
  font-weight: 900;
  color: var(--color-navy);
  letter-spacing: -1.5px;
  margin-bottom: 22px;
}

.hero-title .highlight {
  background: linear-gradient(135deg, var(--color-primary), #0284c7 40%, var(--color-teal));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subtitle {
  font-size: 1.18rem;
  line-height: 1.65;
  color: var(--color-navy-muted);
  margin-bottom: 36px;
  max-width: 580px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px;
  margin-bottom: 40px;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  color: #fff;
  font-size: 1.05rem;
  font-weight: 700;
  padding: 16px 28px;
  border-radius: var(--radius-full);
  box-shadow: 0 8px 24px rgba(2, 132, 199, 0.32);
  transition: all var(--transition-fast);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 28px rgba(2, 132, 199, 0.42);
  background: linear-gradient(135deg, #0369a1, #075985);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  background-color: var(--color-surface);
  color: var(--color-navy);
  font-size: 1.05rem;
  font-weight: 700;
  padding: 15px 26px;
  border-radius: var(--radius-full);
  border: 1.5px solid var(--color-border);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-fast);
}

.btn-secondary:hover {
  background-color: var(--color-surface-muted);
  border-color: var(--color-navy-muted);
  transform: translateY(-2px);
}

.hero-highlights {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  padding-top: 24px;
  border-top: 1px solid var(--color-border);
}

.highlight-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-navy-muted);
}

.highlight-item svg {
  color: var(--color-emerald);
  flex-shrink: 0;
}

/* Hero Smartphone Mockup */
.hero-visual {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
}

.phone-mockup-wrap {
  position: relative;
  width: 320px;
  height: 640px;
  background: #0f172a;
  border-radius: 44px;
  padding: 12px;
  box-shadow: 0 25px 60px -15px rgba(15, 23, 42, 0.35),
              0 0 0 1px rgba(255, 255, 255, 0.1),
              0 0 40px rgba(2, 132, 199, 0.2);
  transform: rotate(-1.5deg);
  transition: transform var(--transition-smooth);
}

.phone-mockup-wrap:hover {
  transform: rotate(0deg) scale(1.02);
}

.phone-screen {
  position: relative;
  width: 100%;
  height: 100%;
  background-color: #f8fafc;
  border-radius: 34px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.phone-notch {
  width: 120px;
  height: 18px;
  background-color: #0f172a;
  border-radius: 0 0 14px 14px;
  margin: 0 auto;
  position: relative;
  z-index: 10;
}

.phone-header {
  padding: 14px 16px 10px;
  background: #0f172a;
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.phone-app-brand {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 800;
  font-size: 0.95rem;
}

.phone-user-chip {
  background: rgba(255, 255, 255, 0.15);
  padding: 4px 10px;
  border-radius: var(--radius-full);
  font-size: 0.72rem;
  font-weight: 600;
  color: #38bdf8;
}

.phone-tabs {
  display: flex;
  background: #0f172a;
  padding: 4px 12px 12px;
  gap: 6px;
}

.phone-tab {
  flex: 1;
  text-align: center;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 6px 0;
  border-radius: var(--radius-full);
  color: #94a3b8;
  background: rgba(255, 255, 255, 0.08);
  transition: all var(--transition-fast);
}

.phone-tab.active {
  background: var(--color-primary);
  color: #fff;
}

.phone-body {
  padding: 14px;
  flex: 1;
  overflow-y: hidden;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.mini-flight-card {
  background: #fff;
  border-radius: 14px;
  padding: 12px;
  border: 1px solid var(--color-border);
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.04);
}

.mini-card-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.72rem;
  color: var(--color-navy-muted);
  margin-bottom: 8px;
}

.mini-airline-tag {
  font-weight: 700;
  color: var(--color-navy);
}

.mini-route {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 8px;
}

.mini-city-code {
  font-weight: 800;
  font-size: 1.05rem;
  color: var(--color-navy);
}

.mini-route-arrow {
  display: flex;
  flex-direction: column;
  align-items: center;
  font-size: 0.65rem;
  color: var(--color-primary);
  font-weight: 600;
}

.mini-card-foot {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-top: 1px dashed var(--color-border);
  padding-top: 8px;
}

.mini-price {
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--color-primary);
}

.mini-btn-book {
  background: var(--color-primary);
  color: #fff;
  font-size: 0.72rem;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 6px;
}

/* Floating Badges on Mockup */
.floating-badge {
  position: absolute;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(8px);
  padding: 12px 18px;
  border-radius: 18px;
  box-shadow: var(--shadow-lg);
  border: 1px solid rgba(226, 232, 240, 0.8);
  display: flex;
  align-items: center;
  gap: 12px;
  z-index: 5;
  animation: float 4s ease-in-out infinite;
}

.badge-top-right {
  top: 15%;
  right: -35px;
  animation-delay: 0s;
}

.badge-bottom-left {
  bottom: 12%;
  left: -40px;
  animation-delay: 2s;
}

.badge-icon {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.badge-icon.hotel {
  background: var(--color-teal-light);
  color: var(--color-teal);
}

.badge-icon.guest {
  background: var(--color-primary-subtle);
  color: var(--color-primary);
}

.badge-text .title {
  font-size: 0.82rem;
  font-weight: 800;
  color: var(--color-navy);
}

.badge-text .desc {
  font-size: 0.72rem;
  color: var(--color-navy-muted);
}

@keyframes float {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-8px); }
}

/* ==========================================================================
   Interactive Live Search Simulator Section
   ========================================================================== */
.search-demo-section {
  padding: 30px 0 80px;
}

.search-demo-card {
  background: var(--color-surface);
  border-radius: var(--radius-xl);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  padding: 32px;
}

.demo-header {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 24px;
}

.demo-title-group h3 {
  font-size: 1.45rem;
  font-weight: 800;
  color: var(--color-navy);
}

.demo-title-group p {
  font-size: 0.92rem;
  color: var(--color-navy-muted);
}

.demo-type-tabs {
  display: flex;
  background: var(--color-surface-muted);
  padding: 4px;
  border-radius: var(--radius-full);
  gap: 4px;
}

.demo-type-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 18px;
  border-radius: var(--radius-full);
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--color-navy-muted);
  transition: all var(--transition-fast);
}

.demo-type-btn.active {
  background-color: var(--color-primary);
  color: #fff;
  box-shadow: 0 2px 8px rgba(2, 132, 199, 0.25);
}

.demo-inputs-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)) 160px;
  gap: 14px;
  align-items: center;
  margin-bottom: 24px;
}

.input-box {
  background: var(--color-bg);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 10px 14px;
  display: flex;
  flex-direction: column;
  transition: border-color var(--transition-fast);
}

.input-box:focus-within {
  border-color: var(--color-primary);
  background-color: #fff;
}

.input-box label {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--color-navy-muted);
  letter-spacing: 0.5px;
  margin-bottom: 2px;
}

.input-box input, .input-box select {
  border: none;
  background: transparent;
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--color-navy);
  outline: none;
  font-family: inherit;
  width: 100%;
}

.btn-demo-search {
  height: 58px;
  background: var(--color-primary);
  color: #fff;
  border-radius: var(--radius-md);
  font-size: 1rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  box-shadow: 0 4px 14px rgba(2, 132, 199, 0.3);
  transition: all var(--transition-fast);
}

.btn-demo-search:hover {
  background: var(--color-primary-dark);
  transform: translateY(-2px);
}

.demo-results-preview {
  border-top: 1px dashed var(--color-border);
  padding-top: 24px;
}

.results-status-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
  font-size: 0.88rem;
  color: var(--color-navy-muted);
}

.results-status-bar strong {
  color: var(--color-navy);
}

.demo-cards-container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 16px;
}

.travel-result-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 18px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  transition: all var(--transition-fast);
}

.travel-result-card:hover {
  border-color: var(--color-primary-light);
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.card-top-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.airline-badge {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--color-navy);
}

.tag-badge {
  font-size: 0.72rem;
  font-weight: 700;
  padding: 4px 8px;
  border-radius: var(--radius-full);
}

.tag-badge.best {
  background: var(--color-emerald-light);
  color: var(--color-emerald);
}

.tag-badge.eco {
  background: var(--color-teal-light);
  color: var(--color-teal);
}

.card-route-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.route-endpoint {
  display: flex;
  flex-direction: column;
}

.endpoint-time {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--color-navy);
}

.endpoint-city {
  font-size: 0.78rem;
  color: var(--color-navy-muted);
}

.route-middle {
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 110px;
}

.route-duration {
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--color-navy-muted);
}

.route-line {
  position: relative;
  width: 100%;
  height: 2px;
  background-color: var(--color-border);
  margin: 4px 0;
}

.route-line::after {
  content: '✈';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: 10px;
  color: var(--color-primary);
  background: var(--color-bg);
  padding: 0 4px;
}

.route-stops {
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--color-emerald);
}

.card-bottom-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 12px;
  border-top: 1px dashed var(--color-border);
}

.price-group {
  display: flex;
  flex-direction: column;
}

.price-label {
  font-size: 0.72rem;
  color: var(--color-navy-muted);
}

.price-value {
  font-size: 1.35rem;
  font-weight: 900;
  color: var(--color-primary);
}

.btn-card-action {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  color: var(--color-navy);
  font-size: 0.82rem;
  font-weight: 700;
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.btn-card-action:hover {
  background: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
}

/* ==========================================================================
   Presentation / Value Proposition Section
   ========================================================================== */
.presentation-section {
  padding: 90px 0;
  background-color: #fff;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.section-intro {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 60px;
}

.section-eyebrow {
  display: inline-block;
  font-size: 0.85rem;
  font-weight: 800;
  text-transform: uppercase;
  color: var(--color-primary);
  letter-spacing: 1px;
  margin-bottom: 12px;
}

.section-title {
  font-size: 2.4rem;
  line-height: 1.2;
  font-weight: 900;
  color: var(--color-navy);
  letter-spacing: -1px;
  margin-bottom: 16px;
}

.section-desc {
  font-size: 1.1rem;
  color: var(--color-navy-muted);
  line-height: 1.6;
}

.pillars-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 28px;
}

.pillar-card {
  background: var(--color-bg);
  border-radius: var(--radius-lg);
  padding: 32px 24px;
  border: 1px solid var(--color-border);
  transition: all var(--transition-fast);
}

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

.pillar-icon {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}

.pillar-icon.blue {
  background: var(--color-primary-subtle);
  color: var(--color-primary);
}

.pillar-icon.teal {
  background: var(--color-teal-light);
  color: var(--color-teal);
}

.pillar-icon.amber {
  background: var(--color-amber-light);
  color: var(--color-amber);
}

.pillar-icon.emerald {
  background: var(--color-emerald-light);
  color: var(--color-emerald);
}

.pillar-card h4 {
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--color-navy);
  margin-bottom: 10px;
}

.pillar-card p {
  font-size: 0.95rem;
  color: var(--color-navy-muted);
  line-height: 1.55;
}

/* ==========================================================================
   Features Section (6 Major Features)
   ========================================================================== */
.features-section {
  padding: 100px 0;
  background-color: var(--color-bg);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 30px;
}

.feature-card {
  background: var(--color-surface);
  border-radius: var(--radius-xl);
  border: 1px solid var(--color-border);
  padding: 34px;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  transition: all var(--transition-fast);
  position: relative;
  overflow: hidden;
}

.feature-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-xl);
  border-color: rgba(2, 132, 199, 0.3);
}

.feature-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
}

.feature-icon-badge {
  width: 56px;
  height: 56px;
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
}

.feature-card.flights .feature-icon-badge {
  background: var(--color-primary-subtle);
  color: var(--color-primary);
}

.feature-card.hotels .feature-icon-badge {
  background: var(--color-teal-light);
  color: var(--color-teal);
}

.feature-card.cars .feature-icon-badge {
  background: var(--color-amber-light);
  color: var(--color-amber);
}

.feature-card.favorites .feature-icon-badge {
  background: #ffe4e6;
  color: #e11d48;
}

.feature-card.profile .feature-icon-badge {
  background: #ede9fe;
  color: #7c3aed;
}

.feature-card.settings .feature-icon-badge {
  background: var(--color-surface-muted);
  color: var(--color-navy-muted);
}

.feature-tag {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--color-navy-muted);
  background: var(--color-surface-muted);
  padding: 4px 10px;
  border-radius: var(--radius-full);
}

.feature-card h3 {
  font-size: 1.38rem;
  font-weight: 800;
  color: var(--color-navy);
  margin-bottom: 12px;
}

.feature-card p {
  font-size: 0.98rem;
  color: var(--color-navy-muted);
  line-height: 1.6;
  margin-bottom: 24px;
  flex: 1;
}

/* Feature Preview Widget */
.feature-preview {
  background: var(--color-bg);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  padding: 16px;
  font-size: 0.85rem;
}

.preview-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.preview-list-item {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--color-navy);
  font-weight: 600;
}

.preview-list-item svg {
  color: var(--color-emerald);
  flex-shrink: 0;
}

/* ==========================================================================
   How It Works Section (3 Visual Steps)
   ========================================================================== */
.how-it-works-section {
  padding: 100px 0;
  background-color: #fff;
  border-top: 1px solid var(--color-border);
}

.steps-timeline {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 36px;
  position: relative;
}

.step-card {
  position: relative;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: 36px 28px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  transition: all var(--transition-fast);
}

.step-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-primary-light);
}

.step-number {
  width: 48px;
  height: 48px;
  border-radius: 14px;
  background: var(--color-navy);
  color: #fff;
  font-size: 1.25rem;
  font-weight: 900;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  box-shadow: 0 4px 10px rgba(15, 23, 42, 0.2);
}

.step-card:nth-child(1) .step-number { background: var(--color-primary); }
.step-card:nth-child(2) .step-number { background: var(--color-teal); }
.step-card:nth-child(3) .step-number { background: var(--color-navy); }

.step-card h3 {
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--color-navy);
  margin-bottom: 12px;
}

.step-card p {
  font-size: 0.95rem;
  color: var(--color-navy-muted);
  line-height: 1.6;
  margin-bottom: 20px;
}

.step-mini-graphic {
  width: 100%;
  background: #fff;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  padding: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* ==========================================================================
   App Screenshots / Interactive Showcase Section
   ========================================================================== */
.showcase-section {
  padding: 100px 0;
  background: linear-gradient(180deg, var(--color-bg) 0%, #fff 100%);
}

.showcase-tabs {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 48px;
}

.showcase-tab-btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 12px 22px;
  border-radius: var(--radius-full);
  background: var(--color-surface);
  border: 1.5px solid var(--color-border);
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--color-navy-muted);
  transition: all var(--transition-fast);
}

.showcase-tab-btn:hover {
  border-color: var(--color-primary-light);
  color: var(--color-navy);
}

.showcase-tab-btn.active {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: #fff;
  box-shadow: 0 4px 14px rgba(2, 132, 199, 0.3);
}

.showcase-display {
  max-width: 900px;
  margin: 0 auto;
  background: #fff;
  border-radius: var(--radius-xl);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-xl);
  padding: 36px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 40px;
}

.showcase-info h3 {
  font-size: 1.8rem;
  font-weight: 900;
  color: var(--color-navy);
  margin-bottom: 16px;
  line-height: 1.25;
}

.showcase-info p {
  font-size: 1rem;
  color: var(--color-navy-muted);
  line-height: 1.65;
  margin-bottom: 24px;
}

.showcase-specs {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.spec-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 0.92rem;
  color: var(--color-navy);
  font-weight: 600;
}

.spec-item svg {
  color: var(--color-primary);
  margin-top: 2px;
  flex-shrink: 0;
}

.showcase-mockup {
  display: flex;
  justify-content: center;
}

.mockup-frame {
  width: 280px;
  background: #0f172a;
  border-radius: 36px;
  padding: 10px;
  box-shadow: var(--shadow-xl);
}

.mockup-inner {
  background: #f8fafc;
  border-radius: 28px;
  overflow: hidden;
  min-height: 440px;
  display: flex;
  flex-direction: column;
}

.mockup-status-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 16px;
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--color-navy-muted);
  background: #fff;
}

.mockup-screen-content {
  padding: 14px;
  flex: 1;
}

/* ==========================================================================
   Download Section (APK CTA)
   ========================================================================== */
.download-section {
  padding: 110px 0;
  background: radial-gradient(circle at 10% 10%, #1e293b 0%, #0f172a 100%);
  color: #fff;
  position: relative;
  overflow: hidden;
}

.download-section::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(2, 132, 199, 0.15) 0%, transparent 70%);
  pointer-events: none;
}

.download-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  align-items: center;
  gap: 50px;
}

.download-content h2 {
  font-size: 3rem;
  line-height: 1.15;
  font-weight: 900;
  letter-spacing: -1px;
  margin-bottom: 20px;
}

.download-content p {
  font-size: 1.15rem;
  line-height: 1.65;
  color: #94a3b8;
  margin-bottom: 32px;
  max-width: 580px;
}

.download-buttons {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px;
  margin-bottom: 32px;
}

.btn-download-apk {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  background: linear-gradient(135deg, var(--color-primary), #0284c7);
  color: #fff;
  font-size: 1.15rem;
  font-weight: 800;
  padding: 18px 34px;
  border-radius: var(--radius-full);
  box-shadow: 0 10px 30px rgba(2, 132, 199, 0.4);
  transition: all var(--transition-fast);
}

.btn-download-apk:hover {
  transform: translateY(-3px);
  box-shadow: 0 14px 36px rgba(2, 132, 199, 0.55);
  background: linear-gradient(135deg, #0369a1, #0284c7);
}

.btn-copy-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: #fff;
  font-size: 0.95rem;
  font-weight: 700;
  padding: 17px 24px;
  border-radius: var(--radius-full);
  transition: all var(--transition-fast);
}

.btn-copy-link:hover {
  background: rgba(255, 255, 255, 0.15);
}

.tech-spec-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  font-size: 0.85rem;
  color: #94a3b8;
}

.tech-spec-item strong {
  color: #fff;
}

/* QR Code & Install Card */
.download-qr-card {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-xl);
  padding: 32px;
  backdrop-filter: blur(12px);
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.qr-code-wrapper {
  background: #fff;
  padding: 16px;
  border-radius: var(--radius-lg);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.3);
  margin-bottom: 20px;
}

.qr-code-wrapper svg {
  width: 170px;
  height: 170px;
}

.qr-label {
  font-size: 1rem;
  font-weight: 800;
  color: #fff;
  margin-bottom: 6px;
}

.qr-sublabel {
  font-size: 0.82rem;
  color: #94a3b8;
  margin-bottom: 20px;
}

/* Installation 3-Steps Guide */
.install-guide-section {
  padding: 70px 0;
  background-color: var(--color-bg);
}

.guide-box {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: 36px;
  box-shadow: var(--shadow-sm);
}

.guide-title {
  text-align: center;
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--color-navy);
  margin-bottom: 30px;
}

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

.guide-step {
  display: flex;
  gap: 16px;
}

.guide-step-badge {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: var(--color-primary-subtle);
  color: var(--color-primary-dark);
  font-weight: 800;
  font-size: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.guide-step-text h5 {
  font-size: 1.05rem;
  font-weight: 800;
  color: var(--color-navy);
  margin-bottom: 6px;
}

.guide-step-text p {
  font-size: 0.9rem;
  color: var(--color-navy-muted);
  line-height: 1.5;
}

/* ==========================================================================
   FAQ Section
   ========================================================================== */
.faq-section {
  padding: 100px 0;
  background-color: #fff;
}

.faq-container {
  max-width: 820px;
  margin: 0 auto;
}

.faq-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.faq-item {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: all var(--transition-fast);
}

.faq-item:hover {
  border-color: var(--color-primary-light);
}

.faq-question {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 24px;
  font-size: 1.08rem;
  font-weight: 700;
  color: var(--color-navy);
  text-align: left;
}

.faq-icon {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-navy-muted);
  transition: transform var(--transition-fast);
  flex-shrink: 0;
}

.faq-item.active .faq-icon {
  transform: rotate(180deg);
  background: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-smooth), padding var(--transition-smooth);
  padding: 0 24px;
  color: var(--color-navy-muted);
  font-size: 0.95rem;
  line-height: 1.65;
}

.faq-item.active .faq-answer {
  max-height: 250px;
  padding: 0 24px 22px;
}

/* ==========================================================================
   Footer
   ========================================================================== */
.site-footer {
  background-color: var(--color-navy);
  color: #94a3b8;
  padding: 80px 0 30px;
  border-top: 1px solid #1e293b;
}

.footer-top {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 60px;
}

.footer-brand .brand-logo {
  color: #fff;
  margin-bottom: 16px;
}

.footer-brand p {
  font-size: 0.92rem;
  line-height: 1.6;
  margin-bottom: 20px;
  max-width: 320px;
}

.domain-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: #38bdf8;
  font-size: 0.82rem;
  font-weight: 700;
  padding: 6px 14px;
  border-radius: var(--radius-full);
}

.footer-col h5 {
  font-size: 1rem;
  font-weight: 800;
  color: #fff;
  margin-bottom: 20px;
}

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

.footer-link {
  font-size: 0.9rem;
  color: #94a3b8;
  transition: color var(--transition-fast);
}

.footer-link:hover {
  color: #fff;
}

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  padding-top: 30px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  font-size: 0.85rem;
  color: #64748b;
  gap: 16px;
}

.footer-bottom a {
  color: #94a3b8;
}

.footer-bottom a:hover {
  color: #fff;
}

/* Toast Notification */
.toast-notice {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background: var(--color-navy);
  color: #fff;
  padding: 14px 22px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-xl);
  font-size: 0.92rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 12px;
  z-index: 2000;
  opacity: 0;
  transform: translateY(20px);
  pointer-events: none;
  transition: all var(--transition-fast);
}

.toast-notice.show {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.toast-notice svg {
  color: var(--color-emerald);
  flex-shrink: 0;
}

/* ==========================================================================
   Responsive Breakpoints
   ========================================================================== */
@media (max-width: 1024px) {
  .hero-title {
    font-size: 2.8rem;
  }
  
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 40px;
    text-align: center;
  }
  
  .hero-subtitle {
    margin: 0 auto 32px;
  }
  
  .hero-actions {
    justify-content: center;
  }
  
  .hero-highlights {
    justify-content: center;
  }
  
  .floating-badge {
    display: none;
  }
  
  .steps-timeline {
    grid-template-columns: 1fr;
  }
  
  .download-grid {
    grid-template-columns: 1fr;
    text-align: center;
  }
  
  .download-content p {
    margin: 0 auto 32px;
  }
  
  .download-buttons {
    justify-content: center;
  }
  
  .tech-spec-bar {
    justify-content: center;
  }
  
  .guide-steps-row {
    grid-template-columns: 1fr;
  }
  
  .footer-top {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
  }
  
  .nav-links.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 76px;
    left: 0;
    width: 100%;
    background: #fff;
    border-bottom: 1px solid var(--color-border);
    padding: 24px;
    box-shadow: var(--shadow-lg);
  }
  
  .mobile-menu-toggle {
    display: flex;
  }
  
  .hero-title {
    font-size: 2.2rem;
  }
  
  .section-title {
    font-size: 1.9rem;
  }
  
  .showcase-display {
    grid-template-columns: 1fr;
  }
  
  .demo-inputs-grid {
    grid-template-columns: 1fr;
  }
  
  .footer-top {
    grid-template-columns: 1fr;
  }
}