/* ==========================================================================
   EXCEL TOOLS PRO - MODERN LANDING PAGE STYLESHEET
   Design System: Modern Glassmorphism, Emerald Accent, Sleek Dark/Light Mode
   ========================================================================== */

:root {
  /* Brand Palette (Excel Emerald + Electric Cyan/Blue) */
  --primary-50: #eefbf3;
  --primary-100: #d7f6e2;
  --primary-200: #b0ecc6;
  --primary-300: #7adc9f;
  --primary-400: #3ec473;
  --primary-500: #107c41; /* Main Excel Emerald */
  --primary-600: #0d6936;
  --primary-700: #0a542b;
  --primary-800: #084323;
  --primary-900: #052c17;

  --accent-cyan: #06b6d4;
  --accent-blue: #0f6cbd;
  --accent-indigo: #6366f1;
  --accent-purple: #8b5cf6;
  --accent-amber: #f59e0b;
  --accent-rose: #f43f5e;

  /* Dark Theme Default Variables */
  --bg-body: #0a0e17;
  --bg-surface: #111827;
  --bg-surface-elevated: #1a2234;
  --bg-surface-glass: rgba(17, 24, 39, 0.75);
  --bg-card: #151e2e;
  --bg-card-hover: #1c283d;
  
  --border-color: rgba(255, 255, 255, 0.08);
  --border-color-hover: rgba(16, 124, 65, 0.4);
  --border-glow: rgba(16, 124, 65, 0.25);

  --text-main: #f9fafb;
  --text-muted: #9ca3af;
  --text-subtle: #6b7280;
  
  --gradient-primary: linear-gradient(135deg, #107c41 0%, #1e9b56 50%, #06b6d4 100%);
  --gradient-card: linear-gradient(180deg, rgba(30, 41, 59, 0.5) 0%, rgba(15, 23, 42, 0.7) 100%);
  --gradient-hero: radial-gradient(circle at 50% 0%, rgba(16, 124, 65, 0.22) 0%, rgba(6, 182, 212, 0.08) 40%, transparent 70%);

  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.2);
  --shadow-md: 0 8px 24px -4px rgba(0, 0, 0, 0.35);
  --shadow-lg: 0 16px 40px -8px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 35px rgba(16, 124, 65, 0.3);

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --radius-full: 9999px;

  --transition: all 0.28s cubic-bezier(0.4, 0, 0.2, 1);
  --font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
}

/* Light Theme Variables */
[data-theme="light"] {
  --bg-body: #f8fafc;
  --bg-surface: #ffffff;
  --bg-surface-elevated: #f1f5f9;
  --bg-surface-glass: rgba(255, 255, 255, 0.85);
  --bg-card: #ffffff;
  --bg-card-hover: #f8fafc;
  
  --border-color: rgba(0, 0, 0, 0.08);
  --border-color-hover: rgba(16, 124, 65, 0.35);
  --border-glow: rgba(16, 124, 65, 0.15);

  --text-main: #0f172a;
  --text-muted: #475569;
  --text-subtle: #94a3b8;

  --gradient-primary: linear-gradient(135deg, #107c41 0%, #1e9b56 60%, #0891b2 100%);
  --gradient-card: linear-gradient(180deg, #ffffff 0%, #f8fafc 100%);
  --gradient-hero: radial-gradient(circle at 50% 0%, rgba(16, 124, 65, 0.12) 0%, rgba(6, 182, 212, 0.06) 40%, transparent 70%);

  --shadow-sm: 0 2px 6px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 8px 24px -4px rgba(15, 23, 42, 0.08);
  --shadow-lg: 0 16px 40px -8px rgba(15, 23, 42, 0.12);
  --shadow-glow: 0 0 25px rgba(16, 124, 65, 0.18);
}

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

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

body {
  font-family: var(--font-family);
  background-color: var(--bg-body);
  color: var(--text-main);
  line-height: 1.6;
  overflow-x: hidden;
  transition: background-color 0.3s ease, color 0.3s ease;
  background-image: 
    radial-gradient(circle at 20% 15%, rgba(16, 124, 65, 0.07) 0%, transparent 40%),
    radial-gradient(circle at 80% 80%, rgba(6, 182, 212, 0.05) 0%, transparent 40%);
  background-attachment: fixed;
}

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

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

ul {
  list-style: none;
}

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

/* Container */
.container {
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Typography Helpers */
.text-gradient {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 600;
  background: rgba(16, 124, 65, 0.12);
  color: var(--primary-400);
  border: 1px solid rgba(16, 124, 65, 0.3);
}

[data-theme="light"] .badge {
  background: rgba(16, 124, 65, 0.08);
  color: var(--primary-700);
  border-color: rgba(16, 124, 65, 0.2);
}

.section-tag {
  display: inline-block;
  font-size: 0.82rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--primary-400);
  margin-bottom: 12px;
}

[data-theme="light"] .section-tag {
  color: var(--primary-600);
}

.section-header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 56px;
}

.section-title {
  font-size: 2.35rem;
  font-weight: 800;
  line-height: 1.25;
  margin-bottom: 16px;
  letter-spacing: -0.02em;
}

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

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 12px 24px;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 0.98rem;
  cursor: pointer;
  border: 1px solid transparent;
  transition: var(--transition);
  text-decoration: none;
  white-space: nowrap;
}

.btn-primary {
  background: var(--gradient-primary);
  color: #ffffff;
  box-shadow: 0 4px 18px rgba(16, 124, 65, 0.35);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(16, 124, 65, 0.5);
  color: #ffffff;
}

.btn-secondary {
  background: var(--bg-surface-elevated);
  color: var(--text-main);
  border-color: var(--border-color);
}

.btn-secondary:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-color-hover);
  transform: translateY(-2px);
}

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

.btn-outline:hover {
  border-color: var(--primary-500);
  color: var(--primary-400);
  background: rgba(16, 124, 65, 0.08);
}

.btn-sm {
  padding: 8px 16px;
  font-size: 0.88rem;
  border-radius: var(--radius-sm);
}

.btn-lg {
  padding: 15px 32px;
  font-size: 1.05rem;
  border-radius: var(--radius-md);
}

/* ==========================================================================
   NAVIGATION BAR
   ========================================================================== */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  background: var(--bg-surface-glass);
  border-bottom: 1px solid var(--border-color);
  transition: var(--transition);
}

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

.nav-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.nav-logo {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  box-shadow: 0 4px 12px rgba(16, 124, 65, 0.35);
  object-fit: cover;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
}

.nav-link {
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--text-muted);
  transition: var(--transition);
  position: relative;
}

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

.nav-link:hover::after {
  content: '';
  position: absolute;
  bottom: -6px;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--primary-500);
  border-radius: 2px;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 14px;
}

.theme-toggle-btn {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition);
}

.theme-toggle-btn:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-color-hover);
}

.mobile-menu-toggle {
  display: none;
  background: transparent;
  border: none;
  color: var(--text-main);
  font-size: 1.5rem;
  cursor: pointer;
}

/* ==========================================================================
   HERO SECTION
   ========================================================================== */
.hero {
  position: relative;
  padding: 80px 0 60px;
  background: var(--gradient-hero);
  overflow: hidden;
}

.hero-content {
  text-align: center;
  max-width: 860px;
  margin: 0 auto 50px;
}

.hero-badge {
  margin-bottom: 24px;
  animation: fadeInDown 0.8s ease;
}

.hero-title {
  font-size: 3.4rem;
  font-weight: 850;
  line-height: 1.15;
  letter-spacing: -0.03em;
  margin-bottom: 24px;
}

.hero-subtitle {
  font-size: 1.22rem;
  color: var(--text-muted);
  line-height: 1.7;
  max-width: 720px;
  margin: 0 auto 36px;
}

.hero-cta {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin-bottom: 36px;
  flex-wrap: wrap;
}

.hero-trust-badges {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 24px;
  color: var(--text-muted);
  font-size: 0.88rem;
  font-weight: 500;
  flex-wrap: wrap;
}

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

.trust-icon {
  color: var(--primary-400);
}

/* ==========================================================================
   APP SHOWCASE GALLERY STYLING
   ========================================================================== */
.gallery-showcase-wrapper {
  position: relative;
  max-width: 1200px;
  margin: 0 auto;
}

.gallery-glow-bg {
  position: absolute;
  top: 5%;
  left: 5%;
  right: 5%;
  bottom: 5%;
  background: radial-gradient(circle, rgba(16, 124, 65, 0.35) 0%, rgba(6, 182, 212, 0.18) 50%, transparent 75%);
  filter: blur(60px);
  z-index: 1;
  pointer-events: none;
}

.gallery-main-card {
  position: relative;
  z-index: 2;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  box-shadow: 0 25px 60px -12px rgba(0, 0, 0, 0.6), 0 0 0 1px rgba(255, 255, 255, 0.08);
  overflow: hidden;
  padding: 24px;
}

/* Gallery Filter Tabs */
.gallery-filter-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 16px;
  margin-bottom: 20px;
  border-bottom: 1px solid var(--border-color);
  scrollbar-width: thin;
}

.gallery-filter-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 16px;
  border-radius: var(--radius-full);
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-color);
  color: var(--text-muted);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
  transition: var(--transition);
}

.gallery-filter-btn:hover {
  background: var(--bg-card-hover);
  color: var(--text-main);
  border-color: var(--border-color-hover);
}

.gallery-filter-btn.active {
  background: var(--primary-500);
  color: #ffffff;
  border-color: var(--primary-400);
  box-shadow: 0 4px 14px rgba(16, 124, 65, 0.4);
}

/* Gallery Display Stage */
.gallery-stage {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 28px;
  align-items: center;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 24px;
  margin-bottom: 24px;
  min-height: 440px;
  transition: var(--transition);
}

.gallery-visual-frame {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  overflow: hidden;
  position: relative;
  transition: var(--transition);
  cursor: pointer;
}

.gallery-visual-frame:hover {
  border-color: var(--primary-400);
  transform: scale(1.01);
}

.visual-frame-header {
  height: 34px;
  background: var(--bg-surface-elevated);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 12px;
}

.visual-frame-dots {
  display: flex;
  align-items: center;
  gap: 6px;
}

.visual-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.visual-frame-title {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-subtle);
}

.visual-frame-content {
  padding: 0;
  min-height: 340px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  background: #0b0f19;
  position: relative;
  overflow: hidden;
}

.gallery-screenshot-wrapper {
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  position: relative;
}

.gallery-screenshot-img {
  width: 100%;
  height: auto;
  max-height: 420px;
  object-fit: contain;
  display: block;
  transition: transform 0.3s ease;
}

.gallery-substep-tabs {
  position: absolute;
  top: 12px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 6px;
  background: rgba(10, 15, 29, 0.88);
  backdrop-filter: blur(8px);
  padding: 4px 8px;
  border-radius: var(--radius-full);
  border: 1px solid rgba(255, 255, 255, 0.15);
  z-index: 10;
}

.substep-pill {
  border: none;
  background: transparent;
  color: var(--text-muted);
  font-size: 0.72rem;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: var(--transition);
}

.substep-pill.active {
  background: var(--primary-500);
  color: #ffffff;
}

.substep-pill:hover:not(.active) {
  color: #ffffff;
  background: rgba(255, 255, 255, 0.1);
}

.visual-zoom-badge {
  position: absolute;
  bottom: 12px;
  right: 12px;
  background: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(6px);
  color: #ffffff;
  font-size: 0.72rem;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  gap: 6px;
  border: 1px solid rgba(255, 255, 255, 0.15);
}

/* Gallery Slide Description Info */
.gallery-info-pane {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.gallery-screen-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.76rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--primary-400);
  margin-bottom: 10px;
}

.gallery-slide-title {
  font-size: 1.65rem;
  font-weight: 800;
  line-height: 1.25;
  margin-bottom: 12px;
}

.gallery-slide-desc {
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.65;
  margin-bottom: 20px;
}

.gallery-feature-highlights {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 24px;
}

.gallery-highlight-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.88rem;
  color: var(--text-main);
}

.highlight-bullet {
  color: var(--primary-400);
  font-size: 1.1rem;
  line-height: 1;
  flex-shrink: 0;
}

.gallery-action-row {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
}

/* Gallery Thumbnails Grid Strip */
.gallery-thumbnails-strip {
  display: grid;
  grid-template-columns: repeat(8, 1fr);
  gap: 8px;
}

.gallery-thumb-item {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 12px;
  text-align: center;
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
}

.gallery-thumb-item:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-color-hover);
  transform: translateY(-3px);
}

.gallery-thumb-item.active {
  border-color: var(--primary-500);
  background: rgba(16, 124, 65, 0.12);
  box-shadow: 0 4px 12px rgba(16, 124, 65, 0.25);
}

.thumb-icon {
  font-size: 1.6rem;
}

.thumb-title {
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--text-main);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 100%;
}

.thumb-tag {
  font-size: 0.68rem;
  color: var(--text-subtle);
}

/* Gallery Navigation Controls */
.gallery-controls-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px solid var(--border-color);
}

.gallery-nav-btns {
  display: flex;
  align-items: center;
  gap: 10px;
}

.gallery-nav-btn {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition);
  font-size: 1rem;
}

.gallery-nav-btn:hover {
  background: var(--primary-500);
  color: #ffffff;
  border-color: var(--primary-400);
}

.gallery-slide-counter {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text-muted);
}

/* Lightbox Modal */
.lightbox-modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(0, 0, 0, 0.85);
  backdrop-filter: blur(10px);
  z-index: 1000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.lightbox-modal.open {
  display: flex;
  animation: fadeIn 0.25s ease;
}

.lightbox-content-box {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  max-width: 1160px;
  width: 95%;
  padding: 24px;
  position: relative;
  box-shadow: var(--shadow-lg);
  max-height: 94vh;
  overflow-y: auto;
}

.lightbox-img-render {
  width: 100%;
  height: auto;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-lg);
  display: block;
  background: #000;
}

@media (max-width: 1024px) {
  .gallery-stage {
    grid-template-columns: 1fr;
  }
  .gallery-thumbnails-strip {
    grid-template-columns: repeat(4, 1fr);
  }
}

@media (max-width: 768px) {
  .gallery-thumbnails-strip {
    grid-template-columns: repeat(2, 1fr);
  }
}


/* ==========================================================================
   STATS SECTION
   ========================================================================== */
.stats-section {
  padding: 50px 0;
  border-bottom: 1px solid var(--border-color);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.stat-card {
  padding: 24px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  text-align: center;
  transition: var(--transition);
}

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

.stat-number {
  font-size: 2.4rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 6px;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.stat-label {
  font-size: 0.95rem;
  color: var(--text-muted);
  font-weight: 500;
}

/* ==========================================================================
   FEATURE CARDS GRID
   ========================================================================== */
.features-section {
  padding: 100px 0;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: 28px;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 24px;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
}

.feature-card-media {
  position: relative;
  width: 100%;
  height: 195px;
  border-radius: var(--radius-md);
  overflow: hidden;
  margin-bottom: 20px;
  border: 1px solid var(--border-color);
  background: var(--bg-surface-elevated);
  cursor: pointer;
}

.feature-card-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
  transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  display: block;
}

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

.feature-media-badge {
  position: absolute;
  bottom: 8px;
  right: 8px;
  background: rgba(10, 15, 29, 0.82);
  backdrop-filter: blur(8px);
  color: #ffffff;
  font-size: 0.7rem;
  font-weight: 600;
  padding: 3px 8px;
  border-radius: var(--radius-full);
  border: 1px solid rgba(255, 255, 255, 0.15);
  pointer-events: none;
  display: flex;
  align-items: center;
  gap: 4px;
  opacity: 0.9;
  transition: opacity 0.2s ease, background-color 0.2s ease;
}

.feature-card:hover .feature-media-badge {
  opacity: 1;
  background: rgba(16, 124, 65, 0.95);
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient-primary);
  opacity: 0;
  transition: var(--transition);
}

.feature-card:hover {
  transform: translateY(-6px);
  border-color: var(--border-color-hover);
  box-shadow: var(--shadow-lg), var(--shadow-glow);
}

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

.feature-icon-wrapper {
  width: 54px;
  height: 54px;
  border-radius: var(--radius-md);
  background: rgba(16, 124, 65, 0.12);
  color: var(--primary-400);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 22px;
  border: 1px solid rgba(16, 124, 65, 0.25);
}

[data-theme="light"] .feature-icon-wrapper {
  color: var(--primary-600);
}

.feature-title {
  font-size: 1.28rem;
  font-weight: 700;
  margin-bottom: 12px;
  letter-spacing: -0.01em;
}

.feature-desc {
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.65;
  margin-bottom: 20px;
  flex-grow: 1;
}

.feature-bullets {
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-size: 0.86rem;
  color: var(--text-subtle);
  border-top: 1px solid var(--border-color);
  padding-top: 16px;
}

.feature-bullet-item {
  display: flex;
  align-items: center;
  gap: 8px;
}

.bullet-check {
  color: var(--primary-400);
  font-weight: bold;
}

/* ==========================================================================
   INTERACTIVE PLAYGROUND / SIMULATORS
   ========================================================================== */
.playground-section {
  padding: 90px 0;
  background: var(--bg-surface-elevated);
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
}

.playground-container {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}

.playground-tabs-bar {
  display: flex;
  background: var(--bg-surface-elevated);
  border-bottom: 1px solid var(--border-color);
  padding: 8px 16px;
  gap: 12px;
  overflow-x: auto;
}

.pg-tab-btn {
  padding: 12px 20px;
  border-radius: var(--radius-sm);
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 10px;
  transition: var(--transition);
}

.pg-tab-btn:hover {
  color: var(--text-main);
  background: var(--bg-card);
}

.pg-tab-btn.active {
  background: var(--bg-surface);
  color: var(--primary-400);
  box-shadow: var(--shadow-sm);
}

[data-theme="light"] .pg-tab-btn.active {
  color: var(--primary-700);
}

.pg-view-pane {
  padding: 32px;
  display: none;
}

.pg-view-pane.active {
  display: block;
  animation: fadeIn 0.3s ease;
}

/* Merge Simulator Styles */
.simulator-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-bottom: 24px;
}

.sim-sheet-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 18px;
}

.sim-sheet-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 14px;
}

.sim-sheet-title {
  font-size: 0.95rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 8px;
}

.sim-table-wrap {
  overflow-x: auto;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
}

.sim-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.82rem;
  text-align: left;
}

.sim-table th {
  background: var(--bg-surface-elevated);
  padding: 8px 12px;
  font-weight: 600;
  border-bottom: 1px solid var(--border-color);
  color: var(--text-muted);
}

.sim-table td {
  padding: 8px 12px;
  border-bottom: 1px solid var(--border-color);
  color: var(--text-main);
}

.sim-controls-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  padding: 16px 20px;
  border-radius: var(--radius-md);
  margin-bottom: 24px;
  flex-wrap: wrap;
  gap: 16px;
}

.sim-options {
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
}

.sim-checkbox-label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.88rem;
  cursor: pointer;
  user-select: none;
}

.sim-result-box {
  background: var(--bg-card);
  border: 1px solid var(--border-color-hover);
  border-radius: var(--radius-md);
  padding: 20px;
}

.sim-result-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 14px;
}

.sim-badge-success {
  background: rgba(16, 124, 65, 0.2);
  color: var(--primary-400);
  padding: 4px 10px;
  border-radius: var(--radius-full);
  font-size: 0.78rem;
  font-weight: 700;
}

/* Split Simulator Styles */
.split-sim-layout {
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: 24px;
}

.split-controls-panel {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-label {
  font-size: 0.84rem;
  font-weight: 600;
  color: var(--text-muted);
}

.form-select, .form-input {
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  outline: none;
  transition: var(--transition);
}

.form-select:focus, .form-input:focus {
  border-color: var(--primary-500);
}

.split-zip-results-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
}

.zip-file-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 14px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: var(--transition);
}

.zip-file-card:hover {
  border-color: var(--primary-500);
  background: var(--bg-card-hover);
}

.zip-file-info {
  display: flex;
  align-items: center;
  gap: 10px;
}

.zip-file-icon {
  color: var(--primary-400);
  font-size: 1.3rem;
}

.zip-file-name {
  font-size: 0.88rem;
  font-weight: 600;
}

.zip-file-meta {
  font-size: 0.75rem;
  color: var(--text-subtle);
}

/* Email Simulator Styles */
.email-sim-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.email-editor-box {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.tag-chips-wrapper {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  align-items: center;
}

.tag-chip {
  background: rgba(16, 124, 65, 0.15);
  color: var(--primary-400);
  border: 1px solid rgba(16, 124, 65, 0.3);
  padding: 3px 8px;
  border-radius: 6px;
  font-size: 0.75rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}

.tag-chip:hover {
  background: var(--primary-500);
  color: #fff;
}

.email-preview-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 20px;
  display: flex;
  flex-direction: column;
}

.email-preview-header {
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 12px;
  margin-bottom: 16px;
  font-size: 0.84rem;
}

.email-preview-body {
  font-size: 0.92rem;
  line-height: 1.7;
  color: var(--text-main);
  background: var(--bg-surface);
  padding: 16px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
  flex-grow: 1;
}

/* ==========================================================================
   HOW IT WORKS SECTION
   ========================================================================== */
.how-it-works-section {
  padding: 90px 0;
}

.steps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  position: relative;
}

.step-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  position: relative;
  text-align: center;
  transition: var(--transition);
}

.step-card:hover {
  transform: translateY(-6px);
  border-color: var(--primary-500);
  box-shadow: var(--shadow-md);
}

.step-number {
  position: absolute;
  top: -18px;
  left: 50%;
  transform: translateX(-50%);
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--gradient-primary);
  color: #fff;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.95rem;
  box-shadow: 0 4px 12px rgba(16, 124, 65, 0.4);
}

.step-icon {
  font-size: 2.2rem;
  margin: 14px 0 18px;
}

.step-title {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 10px;
}

.step-desc {
  font-size: 0.92rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* ==========================================================================
   COMPARISON SECTION
   ========================================================================== */
.comparison-section {
  padding: 90px 0;
  background: var(--bg-surface-elevated);
}

.comparison-table-wrapper {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  overflow-x: auto;
}

.comparison-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
}

.comparison-table th, .comparison-table td {
  padding: 18px 24px;
  border-bottom: 1px solid var(--border-color);
}

.comparison-table th {
  background: var(--bg-surface-elevated);
  font-weight: 700;
  font-size: 0.95rem;
}

.col-highlight {
  background: rgba(16, 124, 65, 0.08) !important;
  font-weight: 700;
  color: var(--primary-400);
}

[data-theme="light"] .col-highlight {
  color: var(--primary-700);
}

/* ==========================================================================
   USE CASES SECTION
   ========================================================================== */
.use-cases-section {
  padding: 90px 0;
}

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

.use-case-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 24px;
  transition: var(--transition);
}

.use-case-card:hover {
  border-color: var(--border-color-hover);
  transform: translateY(-4px);
  box-shadow: var(--shadow-sm);
}

.use-case-tag {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--primary-400);
  margin-bottom: 8px;
}

.use-case-title {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 10px;
}

.use-case-desc {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* ==========================================================================
   PRICING / LICENSE SECTION
   ========================================================================== */
.pricing-section {
  padding: 90px 0;
  background: var(--bg-surface-elevated);
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  align-items: center;
}

.pricing-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  padding: 36px 30px;
  position: relative;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}

.pricing-card.featured {
  border-color: var(--primary-500);
  background: var(--bg-card);
  transform: scale(1.04);
  box-shadow: var(--shadow-lg), 0 0 35px rgba(16, 124, 65, 0.25);
  z-index: 2;
}

.pricing-badge-popular {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--gradient-primary);
  color: #fff;
  font-size: 0.75rem;
  font-weight: 800;
  padding: 4px 14px;
  border-radius: var(--radius-full);
  letter-spacing: 0.5px;
  text-transform: uppercase;
  box-shadow: 0 4px 12px rgba(16, 124, 65, 0.4);
}

.pricing-plan-name {
  font-size: 1.3rem;
  font-weight: 800;
  margin-bottom: 8px;
}

.pricing-plan-desc {
  font-size: 0.88rem;
  color: var(--text-muted);
  margin-bottom: 24px;
}

.pricing-price-wrap {
  display: flex;
  align-items: baseline;
  gap: 6px;
  margin-bottom: 24px;
}

.price-currency {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-muted);
}

.price-amount {
  font-size: 2.6rem;
  font-weight: 850;
  letter-spacing: -0.02em;
}

.price-period {
  font-size: 0.85rem;
  color: var(--text-subtle);
}

.pricing-features-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 32px;
  flex-grow: 1;
}

.pricing-feature-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.9rem;
  color: var(--text-muted);
}

.pricing-feature-item.included {
  color: var(--text-main);
}

.pricing-check-icon {
  color: var(--primary-400);
}

/* ==========================================================================
   FAQ SECTION
   ========================================================================== */
.faq-section {
  padding: 90px 0;
}

.faq-accordion {
  max-width: 820px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

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

.faq-item.active {
  border-color: var(--primary-500);
}

.faq-header {
  padding: 20px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  font-size: 1.02rem;
  font-weight: 700;
  user-select: none;
}

.faq-icon-arrow {
  transition: transform 0.3s ease;
  font-size: 0.9rem;
  color: var(--primary-400);
}

.faq-item.active .faq-icon-arrow {
  transform: rotate(180deg);
}

.faq-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease, padding 0.35s ease;
  padding: 0 24px;
  color: var(--text-muted);
  font-size: 0.94rem;
  line-height: 1.7;
}

.faq-item.active .faq-content {
  max-height: 300px;
  padding-bottom: 20px;
}

/* ==========================================================================
   DOWNLOAD CTA BANNER & MODAL
   ========================================================================== */
.cta-banner-section {
  padding: 80px 0;
}

.cta-banner-card {
  background: linear-gradient(135deg, rgba(16, 124, 65, 0.25) 0%, rgba(6, 182, 212, 0.15) 100%), var(--bg-surface);
  border: 1px solid var(--border-color-hover);
  border-radius: var(--radius-xl);
  padding: 64px 48px;
  text-align: center;
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-lg), 0 0 50px rgba(16, 124, 65, 0.15);
}

.cta-banner-title {
  font-size: 2.6rem;
  font-weight: 850;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}

.cta-banner-subtitle {
  font-size: 1.15rem;
  color: var(--text-muted);
  max-width: 640px;
  margin: 0 auto 32px;
}

/* Download Modal */
.modal-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(8px);
  z-index: 999;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.modal-backdrop.open {
  display: flex;
  animation: fadeIn 0.25s ease;
}

.modal-dialog {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  max-width: 540px;
  width: 100%;
  padding: 32px;
  position: relative;
  box-shadow: var(--shadow-lg);
}

.modal-close-btn {
  position: absolute;
  top: 18px;
  right: 18px;
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-size: 1.4rem;
  cursor: pointer;
  transition: var(--transition);
}

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

.modal-title {
  font-size: 1.4rem;
  font-weight: 800;
  margin-bottom: 8px;
}

.download-instruction-steps {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin: 24px 0;
  text-align: left;
}

.instruction-step {
  display: flex;
  gap: 12px;
  font-size: 0.9rem;
}

.instruction-num {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--primary-500);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.75rem;
  flex-shrink: 0;
}

/* ==========================================================================
   FOOTER
   ========================================================================== */
.footer {
  background: var(--bg-surface);
  border-top: 1px solid var(--border-color);
  padding: 70px 0 30px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 50px;
}

.footer-brand-desc {
  color: var(--text-muted);
  font-size: 0.92rem;
  margin: 16px 0 20px;
  max-width: 320px;
}

.footer-col-title {
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 18px;
  color: var(--text-main);
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 10px;
  font-size: 0.88rem;
  color: var(--text-muted);
}

.footer-links a:hover {
  color: var(--primary-400);
}

.footer-bottom {
  border-top: 1px solid var(--border-color);
  padding-top: 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.85rem;
  color: var(--text-subtle);
  flex-wrap: wrap;
  gap: 16px;
}

/* ==========================================================================
   KEYFRAME ANIMATIONS & RESPONSIVENESS
   ========================================================================== */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInDown {
  from { opacity: 0; transform: translateY(-16px); }
  to { opacity: 1; transform: translateY(0); }
}

@media (max-width: 1024px) {
  .hero-title { font-size: 2.8rem; }
  .features-grid, .steps-grid, .use-cases-grid, .pricing-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .pricing-card.featured { transform: none; }
  .window-body { grid-template-columns: 180px 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .nav-links { display: none; }
  .mobile-menu-toggle { display: block; }
  .hero-title { font-size: 2.2rem; }
  .hero-subtitle { font-size: 1.05rem; }
  .features-grid, .steps-grid, .use-cases-grid, .pricing-grid, .stats-grid {
    grid-template-columns: 1fr;
  }
  .window-body { grid-template-columns: 1fr; }
  .mockup-sidebar { border-right: none; border-bottom: 1px solid var(--border-color); }
  .simulator-grid, .split-sim-layout, .email-sim-layout { grid-template-columns: 1fr; }
  .cta-banner-card { padding: 40px 20px; }
  .cta-banner-title { font-size: 1.9rem; }
  .footer-grid { grid-template-columns: 1fr; }
}