/* ==========================================================================
   WORD BUCKETS LANDING PAGE STYLESHEET
   Design Philosophy: Handcrafted Human UX/UI, Full Cover Photo Hero, i18n
   Themes: Light & Dark Modes with Vibrant Ambient Mesh & Color Palette
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. Design System & CSS Custom Properties (Vibrant Color Palette)
   -------------------------------------------------------------------------- */
:root {
  /* Typography */
  --font-heading: 'Outfit', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-body: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;

  /* Palette Accents */
  --accent-orange: #ff6b00;
  --accent-orange-hover: #ea580c;
  --accent-orange-gradient: linear-gradient(135deg, #ff6b00 0%, #f97316 45%, #fb923c 100%);

  --accent-blue: #3b82f6;
  --accent-indigo: #6366f1;
  --accent-azure-gradient: linear-gradient(135deg, #3b82f6 0%, #6366f1 45%, #8b5cf6 100%);

  --accent-emerald: #10b981;
  --accent-emerald-gradient: linear-gradient(135deg, #059669 0%, #10b981 45%, #34d399 100%);

  --accent-purple: #8b5cf6;
  --accent-purple-gradient: linear-gradient(135deg, #8b5cf6 0%, #a855f7 45%, #ec4899 100%);

  --accent-gold: #f59e0b;
  --accent-gold-gradient: linear-gradient(135deg, #ff8c00 0%, #fbbf24 60%, #fef08a 100%);

  /* Default Active Brand Accents */
  --accent-primary: #ff6b00;
  --accent-primary-hover: #ea580c;
  --accent-gradient: var(--accent-orange-gradient);
  --glow-color: rgba(255, 107, 0, 0.35);

  /* Light Mode Tokens (Default Clean Light Gray Palette) */
  --bg-main: #f1f5f9;
  --bg-mesh: linear-gradient(180deg, #f8fafc 0%, #f1f5f9 50%, #e2e8f0 100%);
  --bg-surface: #ffffff;
  --bg-elevated: #ffffff;
  --header-bg: rgba(241, 245, 249, 0.94);
  
  --text-main: #0f172a;
  --text-muted: #475569;
  --text-dim: #64748b;

  --border-subtle: #e2e8f0;
  --border-active: #cbd5e1;

  --card-shadow: 0 4px 20px -2px rgba(15, 23, 42, 0.05), 0 2px 6px -1px rgba(15, 23, 42, 0.02);
  --card-shadow-hover: 0 12px 28px -4px rgba(15, 23, 42, 0.08);

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

  --header-height: 76px;
  --transition-normal: 0.25s cubic-bezier(0.16, 1, 0.3, 1);

  /* Level-Specific Ambient Mesh Gradients (Light) */
  --bg-mesh-elem-light: #f1f5f9;
  --bg-mesh-inter-light: #f1f5f9;
  --bg-mesh-adv-light: #f1f5f9;

  /* Level-Specific Ambient Mesh Gradients (Dark) */
  --bg-mesh-elem-dark: 
    radial-gradient(at 0% 0%, rgba(255, 107, 0, 0.22) 0px, transparent 48%),
    radial-gradient(at 100% 10%, rgba(249, 115, 22, 0.16) 0px, transparent 45%),
    radial-gradient(at 50% 80%, rgba(234, 88, 12, 0.12) 0px, transparent 50%),
    #0e0b08;

  --bg-mesh-inter-dark: 
    radial-gradient(at 0% 0%, rgba(37, 99, 235, 0.24) 0px, transparent 48%),
    radial-gradient(at 100% 10%, rgba(99, 102, 241, 0.18) 0px, transparent 45%),
    radial-gradient(at 50% 80%, rgba(2, 132, 199, 0.14) 0px, transparent 50%),
    #070c18;

  --bg-mesh-adv-dark: 
    radial-gradient(at 0% 0%, rgba(16, 185, 129, 0.24) 0px, transparent 48%),
    radial-gradient(at 100% 10%, rgba(5, 150, 105, 0.18) 0px, transparent 45%),
    radial-gradient(at 50% 80%, rgba(13, 148, 136, 0.14) 0px, transparent 50%),
    #06110d;
}

/* Explicit Light Mode Override */
[data-theme="light"] {
  --bg-main: #f1f5f9;
  --bg-mesh: linear-gradient(180deg, #f8fafc 0%, #f1f5f9 50%, #e2e8f0 100%);
  --bg-surface: #ffffff;
  --bg-elevated: #ffffff;
  --header-bg: rgba(241, 245, 249, 0.94);

  --text-main: #0f172a;
  --text-muted: #475569;
  --text-dim: #64748b;

  --border-subtle: #e2e8f0;
  --border-active: #cbd5e1;

  --card-shadow: 0 4px 20px -2px rgba(15, 23, 42, 0.05), 0 2px 6px -1px rgba(15, 23, 42, 0.02);
  --card-shadow-hover: 0 12px 28px -4px rgba(15, 23, 42, 0.08);
}

/* Dark Mode Override */
[data-theme="dark"] {
  --bg-main: #0a0e1a;
  --bg-mesh: 
    radial-gradient(at 0% 0%, rgba(255, 107, 0, 0.14) 0px, transparent 45%),
    radial-gradient(at 100% 0%, rgba(99, 102, 241, 0.16) 0px, transparent 45%),
    radial-gradient(at 50% 50%, rgba(59, 130, 246, 0.08) 0px, transparent 45%),
    radial-gradient(at 100% 100%, rgba(16, 185, 129, 0.10) 0px, transparent 45%),
    radial-gradient(at 0% 100%, rgba(236, 72, 153, 0.08) 0px, transparent 45%),
    #0a0e1a;
  --bg-surface: rgba(19, 25, 39, 0.85);
  --bg-elevated: rgba(27, 34, 52, 0.90);
  --header-bg: rgba(10, 14, 26, 0.85);

  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --text-dim: #64748b;

  --border-subtle: rgba(255, 255, 255, 0.09);
  --border-active: rgba(255, 107, 0, 0.45);

  --card-shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
  --card-shadow-hover: 0 20px 40px rgba(255, 107, 0, 0.15);
}

/* ==========================================================================
   LEVEL-SPECIFIC DYNAMIC ZEMIN (BACKGROUND) THEMES
   ========================================================================== */

/* 1. Elementary (A1-A2) Level Theme */
body[data-level="elementary"],
[data-level="elementary"] {
  --bg-mesh: var(--bg-mesh-elem-dark);
  --accent-primary: #ff6b00;
  --border-active: rgba(255, 107, 0, 0.45);
}
[data-theme="light"] body[data-level="elementary"],
body[data-level="elementary"][data-theme="light"] {
  --bg-mesh: var(--bg-mesh-elem-light);
  --border-subtle: rgba(255, 107, 0, 0.14);
  --border-active: rgba(255, 107, 0, 0.45);
}

/* 2. Intermediate (B1-B2) Level Theme */
body[data-level="intermediate"],
[data-level="intermediate"] {
  --bg-mesh: var(--bg-mesh-inter-dark);
  --accent-primary: #3b82f6;
  --border-active: rgba(59, 130, 246, 0.45);
}
[data-theme="light"] body[data-level="intermediate"],
body[data-level="intermediate"][data-theme="light"] {
  --bg-mesh: var(--bg-mesh-inter-light);
  --border-subtle: rgba(37, 99, 235, 0.14);
  --border-active: rgba(59, 130, 246, 0.45);
}

/* 3. Advanced (C1-C2) Level Theme */
body[data-level="advanced"],
[data-level="advanced"] {
  --bg-mesh: var(--bg-mesh-adv-dark);
  --accent-primary: #10b981;
  --border-active: rgba(16, 185, 129, 0.45);
}
[data-theme="light"] body[data-level="advanced"],
body[data-level="advanced"][data-theme="light"] {
  --bg-mesh: var(--bg-mesh-adv-light);
  --border-subtle: rgba(16, 185, 129, 0.14);
  --border-active: rgba(16, 185, 129, 0.45);
}

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

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

body {
  font-family: var(--font-body);
  background-color: var(--bg-main);
  background-image: var(--bg-mesh);
  background-attachment: fixed;
  background-repeat: no-repeat;
  background-size: 100% 100%;
  color: var(--text-main);
  line-height: 1.6;
  overflow-x: hidden;
  transition: background-color var(--transition-normal), color var(--transition-normal);
}

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 1.5rem;
}

h1, h2, h3, h4 {
  font-family: var(--font-heading);
  line-height: 1.25;
  font-weight: 700;
}

.text-center { text-align: center; }

.section-intro { margin-bottom: 3.5rem; }

.sub-heading {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  color: var(--accent-primary);
  margin-bottom: 0.75rem;
  text-transform: uppercase;
}

.main-heading {
  font-size: 2.4rem;
  letter-spacing: -0.02em;
}

.text-accent { color: var(--accent-primary); }

/* --------------------------------------------------------------------------
   3. Buttons & Interactive Controls
   -------------------------------------------------------------------------- */
.cta-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  padding: 0.8rem 1.6rem;
  font-weight: 700;
  font-size: 0.95rem;
  border-radius: var(--radius-full);
  transition: all var(--transition-normal);
}

.primary-cta {
  background: var(--accent-orange-gradient);
  color: #ffffff;
  font-weight: 700;
  border: 1px solid rgba(255, 255, 255, 0.3);
  box-shadow: 0 4px 20px rgba(255, 107, 0, 0.38);
}

.primary-cta:hover {
  background: linear-gradient(135deg, #ea580c 0%, #ff6b00 45%, #f97316 100%);
  color: #ffffff;
  transform: translateY(-2px);
  box-shadow: 0 6px 26px rgba(255, 107, 0, 0.55);
}

.outline-btn {
  background: rgba(19, 25, 39, 0.7);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: #ffffff;
}

.outline-btn:hover {
  border-color: var(--accent-primary);
  background: rgba(19, 25, 39, 0.9);
  transform: translateY(-2px);
}

.large-btn {
  padding: 0.95rem 2.2rem;
  font-size: 1.05rem;
}

.small-cta {
  padding: 0.55rem 1.1rem;
  font-size: 0.85rem;
}

.full-width { width: 100%; }

/* Relocated System Intro Bar */
.system-intro-bar {
  padding: 1.5rem 0 3rem 0;
}

.intro-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.5rem 1.25rem;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-full);
  color: var(--accent-primary);
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  box-shadow: var(--card-shadow);
}

.label-dot {
  width: 7px;
  height: 7px;
  background-color: var(--accent-primary);
  border-radius: 50%;
}

/* --------------------------------------------------------------------------
   4. Header & Language Selector
   -------------------------------------------------------------------------- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height);
  background: var(--header-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-subtle);
  z-index: 1000;
  transition: background-color var(--transition-normal);
}

.site-header::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, #ff6b00 0%, #3b82f6 35%, #8b5cf6 70%, #10b981 100%);
  opacity: 0.85;
}

.header-inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 1.25rem;
}

.brand-logo-img {
  height: 38px;
  width: auto;
  object-fit: contain;
}

.brand-title .highlight { color: #ff6b00; }

.main-nav {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.main-nav a {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-muted);
  transition: color var(--transition-normal);
}

.main-nav a:hover,
.main-nav a.active-nav {
  color: #ff6b00;
}

.header-controls {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

.lang-selector {
  position: relative;
}

.lang-btn {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.45rem 0.8rem;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-full);
  font-size: 0.825rem;
  font-weight: 700;
  color: var(--text-main);
  transition: border-color var(--transition-normal);
}

.lang-btn:hover { border-color: var(--accent-primary); }

.lang-dropdown {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  width: 140px;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  box-shadow: var(--card-shadow);
  display: none;
  flex-direction: column;
  padding: 0.4rem;
  z-index: 1001;
}

.lang-dropdown.open { display: flex; }

.lang-option {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 0.75rem;
  border-radius: var(--radius-sm);
  font-size: 0.825rem;
  font-weight: 600;
  color: var(--text-muted);
  width: 100%;
  text-align: left;
  transition: all var(--transition-normal);
}

.lang-option:hover, .lang-option.active {
  background: var(--bg-elevated);
  color: var(--accent-primary);
}

.theme-btn {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  color: var(--text-main);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-normal);
}

.theme-btn:hover { border-color: var(--accent-primary); color: #ff6b00; }

[data-theme="dark"] .sun-icon { display: block; }
[data-theme="dark"] .moon-icon { display: none; }
[data-theme="light"] .sun-icon { display: none; }
[data-theme="light"] .moon-icon { display: block; }

.header-cta {
  background: var(--accent-orange-gradient);
  color: #ffffff;
  border-radius: var(--radius-full);
  box-shadow: 0 4px 14px rgba(255, 107, 0, 0.35);
  font-weight: 700;
}

.header-cta:hover {
  background: linear-gradient(135deg, #ea580c 0%, #ff6b00 45%, #f97316 100%);
  color: #ffffff;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(255, 107, 0, 0.5);
}

.nav-login-link {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-muted);
  padding: 0.5rem 0.8rem;
  transition: color var(--transition-normal);
}

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

.mobile-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
}

.mobile-toggle span {
  width: 22px;
  height: 2px;
  background: var(--text-main);
  border-radius: 2px;
}

.mobile-drawer-panel {
  position: fixed;
  top: var(--header-height);
  left: 0;
  width: 100%;
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border-subtle);
  padding: 1.5rem;
  display: none;
  box-shadow: var(--card-shadow);
  z-index: 999;
}

.mobile-drawer-panel.open { display: block; }

.mobile-menu {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.mobile-link {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-main);
}

/* ==========================================================================
   LANDING PAGE 3 VERTICAL ZONES (DISTINCT GRADIENT ATMOSPHERES)
   ========================================================================== */

.home-main-wrapper {
  width: 100%;
  position: relative;
  overflow: hidden;
}

.landing-zone {
  position: relative;
  width: 100%;
  transition: background var(--transition-normal);
}

/* --------------------------------------------------------------------------
   ZONE 1: HERO & HOW IT WORKS (Ferah Açık Gri - Slate Gri Geçişi)
   -------------------------------------------------------------------------- */
.zone-hero-steps {
  background: linear-gradient(180deg, #f8fafc 0%, #f1f5f9 50%, #e2e8f0 100%);
  position: relative;
  padding-bottom: 3.5rem;
}

[data-theme="dark"] .zone-hero-steps {
  background: linear-gradient(180deg, #0a0e1a 0%, #0f172a 100%);
}

.zone-hero-steps::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 85%;
  max-width: 1100px;
  height: 1px;
  background: linear-gradient(90deg, transparent 0%, var(--border-subtle) 50%, transparent 100%);
}

/* --------------------------------------------------------------------------
   ZONE 2: LEARNING EXPERIENCE & PROVEN VALUE (Slate Gri - Açık Gri Geçişi)
   -------------------------------------------------------------------------- */
.zone-experience {
  background: linear-gradient(180deg, #e2e8f0 0%, #edf2f7 50%, #e2e8f0 100%);
  position: relative;
  padding-top: 5rem;
  padding-bottom: 3.5rem;
}

[data-theme="dark"] .zone-experience {
  background: linear-gradient(180deg, #0f172a 0%, #111827 50%, #0f172a 100%);
}

.zone-experience::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 85%;
  max-width: 1100px;
  height: 1px;
  background: linear-gradient(90deg, transparent 0%, var(--border-subtle) 50%, transparent 100%);
}

/* --------------------------------------------------------------------------
   ZONE 3: PLATFORMS ECOSYSTEM & FINAL CTA (Açık Gri - İnci Grisi Geçişi)
   -------------------------------------------------------------------------- */
.zone-platforms-cta {
  background: linear-gradient(180deg, #e2e8f0 0%, #f1f5f9 50%, #f8fafc 100%);
  position: relative;
  padding-top: 5rem;
  padding-bottom: 3.5rem;
}

[data-theme="dark"] .zone-platforms-cta {
  background: linear-gradient(180deg, #0f172a 0%, #111827 40%, #0a0e1a 100%);
}

/* --------------------------------------------------------------------------
   5. SECTION 1: HERO BANNER (Woman on Desk Far Right)
   -------------------------------------------------------------------------- */
.hero-full-banner-section {
  padding-top: calc(var(--header-height) + 2rem);
  padding-bottom: 2rem;
  position: relative;
  z-index: 1;
}

.hero-banner-card {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-lg);
  min-height: 580px;
  display: flex;
  align-items: center;
  padding: 4rem 3.5rem;
  border: 1px solid var(--border-subtle);
  box-shadow: var(--card-shadow);
}

.hero-full-bg-img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 92% center;
  z-index: 0;
}

.hero-banner-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
  background: linear-gradient(90deg, rgba(10, 14, 26, 0.98) 0%, rgba(10, 14, 26, 0.88) 48%, rgba(10, 14, 26, 0.15) 78%, rgba(10, 14, 26, 0.35) 100%);
}

[data-theme="light"] .hero-banner-overlay {
  background: linear-gradient(90deg, rgba(15, 23, 42, 0.96) 0%, rgba(15, 23, 42, 0.85) 48%, rgba(15, 23, 42, 0.15) 78%, rgba(15, 23, 42, 0.35) 100%);
}

.hero-content-left {
  position: relative;
  z-index: 2;
  max-width: 620px;
  color: #ffffff;
}

.hero-content-left .hero-title {
  font-size: 3.4rem;
  letter-spacing: -0.03em;
  margin-bottom: 1.25rem;
  color: #ffffff;
}

.hero-highlight {
  background: var(--accent-gold-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  font-weight: 800;
}

.hero-content-left .hero-paragraph {
  font-size: 1.12rem;
  color: #cbd5e1;
  margin-bottom: 2.25rem;
  max-width: 550px;
  line-height: 1.7;
}

.hero-buttons {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

/* Platform Icons Listed in Bottom-Right Corner */
.hero-bottom-right-platforms {
  position: absolute;
  bottom: 25px;
  right: 30px;
  z-index: 3;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 0.5rem;
}

.platforms-mini-label {
  font-size: 0.7rem;
  font-weight: 800;
  color: rgba(255, 255, 255, 0.75);
  letter-spacing: 0.12em;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.6);
}

.platform-icon-row {
  display: flex;
  align-items: center;
  gap: 0.65rem;
}

.icon-badge {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(19, 25, 39, 0.85);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: #ffffff;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.4);
  transition: all var(--transition-normal);
}

.icon-badge:hover {
  transform: translateY(-4px) scale(1.1);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.6);
}

.badge-web svg, .platform-web svg { color: #3b82f6; }
.badge-ios svg, .platform-ios svg { color: #cbd5e1; }
.badge-android svg, .platform-android svg { color: #10b981; }
.badge-chrome svg, .platform-chrome svg { color: #ff6b00; }

[data-theme="light"] .badge-ios svg,
[data-theme="light"] .platform-ios svg {
  color: #334155;
}

.badge-web:hover { border-color: #3b82f6; box-shadow: 0 8px 25px rgba(59, 130, 246, 0.4); }
.badge-ios:hover { border-color: #ffffff; background: #000000; box-shadow: 0 8px 25px rgba(255, 255, 255, 0.3); }
.badge-android:hover { border-color: #10b981; box-shadow: 0 8px 25px rgba(16, 185, 129, 0.4); }
.badge-chrome:hover { border-color: #ff6b00; box-shadow: 0 8px 25px rgba(255, 107, 0, 0.4); }

/* --------------------------------------------------------------------------
   6. Steps Section (Vibrant Multi-Color 4 Step Cards)
   -------------------------------------------------------------------------- */
.steps-section {
  padding-bottom: 6rem;
}

.steps-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

.step-box {
  padding: 2.25rem 1.75rem;
  background: var(--bg-surface);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  box-shadow: var(--card-shadow);
  transition: transform var(--transition-normal), border-color var(--transition-normal), box-shadow var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.step-box:hover {
  transform: translateY(-5px);
  box-shadow: var(--card-shadow-hover);
}

/* Individual Step Color Theming - Modern Clean Accents */
.step-box.step-1 { border-top: 3px solid #ff6b00; }
.step-box.step-1 .step-num { color: #ff6b00; }
.step-box.step-1:hover { border-color: rgba(255, 107, 0, 0.45); box-shadow: 0 16px 36px rgba(255, 107, 0, 0.08); }

.step-box.step-2 { border-top: 3px solid #3b82f6; }
.step-box.step-2 .step-num { color: #3b82f6; }
.step-box.step-2:hover { border-color: rgba(59, 130, 246, 0.45); box-shadow: 0 16px 36px rgba(59, 130, 246, 0.08); }

.step-box.step-3 { border-top: 3px solid #8b5cf6; }
.step-box.step-3 .step-num { color: #8b5cf6; }
.step-box.step-3:hover { border-color: rgba(139, 92, 246, 0.45); box-shadow: 0 16px 36px rgba(139, 92, 246, 0.08); }

.step-box.step-4 { border-top: 3px solid #10b981; }
.step-box.step-4 .step-num { color: #10b981; }
.step-box.step-4:hover { border-color: rgba(16, 185, 129, 0.45); box-shadow: 0 16px 36px rgba(16, 185, 129, 0.08); }

.step-num {
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 900;
  margin-bottom: 1rem;
  letter-spacing: -0.02em;
}

.step-box h3 {
  font-size: 1.2rem;
  margin-bottom: 0.6rem;
  font-weight: 700;
}

.step-box p {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* --------------------------------------------------------------------------
   7. Experience Section
   -------------------------------------------------------------------------- */
.experience-section {
  padding-bottom: 6rem;
}

.experience-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.photo-collage-group {
  position: relative;
}

.collage-main-frame {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid rgba(255, 107, 0, 0.2);
  box-shadow: 0 20px 50px rgba(99, 102, 241, 0.16);
}

.collage-main-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.collage-floating-card {
  position: absolute;
  bottom: -20px;
  right: -20px;
  background: var(--bg-surface);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  padding: 1.6rem;
  border-radius: var(--radius-md);
  border: 1px solid rgba(255, 107, 0, 0.3);
  box-shadow: 0 16px 40px rgba(255, 107, 0, 0.18);
  text-align: center;
}

.stat-highlight {
  font-family: var(--font-heading);
  font-size: 2.3rem;
  font-weight: 900;
  background: linear-gradient(135deg, #ff6b00 0%, #f97316 45%, #8b5cf6 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.stat-caption {
  font-size: 0.78rem;
  color: var(--text-muted);
  font-weight: 700;
}

.paragraph-text {
  font-size: 1.05rem;
  color: var(--text-muted);
  margin-bottom: 2rem;
}

.value-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
  margin-bottom: 2.5rem;
}

.value-list li {
  display: flex;
  align-items: flex-start;
  gap: 0.9rem;
  font-size: 0.95rem;
}

.bullet-check {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: linear-gradient(135deg, rgba(255, 107, 0, 0.18), rgba(249, 115, 22, 0.22));
  color: #ff6b00;
  border: 1px solid rgba(255, 107, 0, 0.35);
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 0.85rem;
}

/* --------------------------------------------------------------------------
   8. SECTION 4: PLATFORMS (4 SEPARATE CARDS WITH RICH GRADIENTS)
   -------------------------------------------------------------------------- */
.platforms-section {
  padding-bottom: 6rem;
}

.platform-cards-grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

.platform-card {
  padding: 2.25rem 1.75rem;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  box-shadow: var(--card-shadow);
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
  color: var(--text-main);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal), border-color var(--transition-normal);
}

.platform-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--card-shadow-hover);
  border-color: #cbd5e1;
}

.gradient-card-web { border-top: 3px solid #3b82f6; }
.gradient-card-ios { border-top: 3px solid #0f172a; }
[data-theme="dark"] .gradient-card-ios { border-top: 3px solid #f8fafc; }
.gradient-card-android { border-top: 3px solid #10b981; }
.gradient-card-chrome { border-top: 3px solid #ff6b00; }

.card-brand-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.5rem;
}

.platform-logo-icon {
  width: 50px;
  height: 50px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #f1f5f9;
  color: #0f172a;
}

[data-theme="dark"] .platform-logo-icon {
  background: rgba(255, 255, 255, 0.1);
  color: #f8fafc;
}

.card-type {
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  color: var(--text-dim);
}

.platform-card h3 {
  font-size: 1.35rem;
  margin-bottom: 0.75rem;
  color: var(--text-main);
  font-weight: 800;
}

.platform-card p {
  font-size: 0.92rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 2rem;
  flex-grow: 1;
}

.card-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--accent-primary);
  text-decoration: none;
  transition: gap var(--transition-normal);
}

.card-link:hover { gap: 0.8rem; }

/* --------------------------------------------------------------------------
   9. Final CTA & Footer
   -------------------------------------------------------------------------- */
.final-cta-section { padding: 6rem 0; }

.final-cta-box {
  padding: 4rem 1.5rem;
  background: transparent;
  border: none;
  box-shadow: none;
}

.final-cta-box h2 { font-size: 2.3rem; margin-bottom: 0.85rem; font-weight: 800; }
.final-cta-box p { color: var(--text-muted); font-size: 1.15rem; margin-bottom: 2.25rem; }

.site-footer {
  background: var(--bg-surface);
  border-top: 1px solid var(--border-subtle);
  padding: 4rem 0 2rem 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr repeat(3, 1fr);
  gap: 3rem;
  margin-bottom: 3.5rem;
}

.footer-about { color: var(--text-muted); font-size: 0.9rem; margin: 0.8rem 0; }
.footer-app-url { font-size: 0.85rem; color: var(--text-dim); }
.footer-app-url a { color: var(--accent-primary); font-weight: 700; }

.footer-links-col h4 { font-size: 1rem; margin-bottom: 1.25rem; }
.footer-links-col ul { list-style: none; display: flex; flex-direction: column; gap: 0.7rem; }
.footer-links-col ul a { color: var(--text-muted); font-size: 0.88rem; transition: color var(--transition-normal); }
.footer-links-col ul a:hover { color: var(--text-main); }

.footer-platform-list {
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
  margin-top: 0.2rem;
}

.platform-link-item {
  display: inline-flex;
  align-items: center;
  gap: 0.85rem;
  color: var(--text-muted);
  font-size: 0.92rem;
  font-weight: 600;
  text-decoration: none;
  transition: all var(--transition-normal);
}

.platform-link-item svg {
  width: 24px;
  height: 24px;
  min-width: 24px;
  transition: transform var(--transition-normal), color var(--transition-normal);
}

.platform-link-item:hover {
  color: var(--text-main);
  transform: translateX(4px);
}

.platform-link-item:hover svg {
  transform: scale(1.15);
}

.platform-web:hover svg { color: #60a5fa; }
.platform-ios:hover svg { color: #ffffff; }
.platform-android:hover svg { color: #10b981; }
.platform-chrome:hover svg { color: #fbbf24; }

.footer-bottom-bar {
  border-top: 1px solid var(--border-subtle);
  padding-top: 1.5rem;
  text-align: center;
  color: var(--text-dim);
  font-size: 0.85rem;
}

/* --------------------------------------------------------------------------
   10. Responsive Breakpoints
   -------------------------------------------------------------------------- */
@media (max-width: 1024px) {
  .hero-banner-card { padding: 3rem 2rem; min-height: 540px; }
  .hero-content-left .hero-title { font-size: 2.6rem; }
  .hero-bottom-right-platforms { position: static; margin-top: 2rem; align-items: flex-start; }
  .steps-grid { grid-template-columns: repeat(2, 1fr); }
  .experience-grid { grid-template-columns: 1fr; gap: 3rem; }
  .platform-cards-grid-4 { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .main-nav, .header-controls .nav-login-link, .header-controls .primary-cta { display: none; }
  .mobile-toggle { display: flex; }
  .hero-banner-card { padding: 2.5rem 1.5rem; }
  .hero-content-left .hero-title { font-size: 2rem; }
  .main-heading { font-size: 1.8rem; }
  .steps-grid { grid-template-columns: 1fr; }
  .platform-cards-grid-4 { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
}

/* --------------------------------------------------------------------------
   11. Open in App Button & Toast Notifications
   -------------------------------------------------------------------------- */

/* Open in App CTA Button */
.btn-open-in-app {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  padding: 0.85rem 2rem;
  font-size: 1rem;
  font-weight: 700;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, var(--accent-primary), #60a5fa);
  color: #ffffff;
  border: none;
  cursor: pointer;
  transition: all 0.25s ease;
  font-family: var(--font-body);
  box-shadow: 0 4px 18px rgba(59, 130, 246, 0.35);
  letter-spacing: -0.01em;
}

.btn-open-in-app:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(59, 130, 246, 0.45);
  background: linear-gradient(135deg, #2563eb, #3b82f6);
}

.btn-open-in-app:active {
  transform: translateY(0);
}

.btn-open-in-app:disabled {
  opacity: 0.7;
  cursor: wait;
}

.btn-open-in-app.added {
  background: linear-gradient(135deg, #10b981, #34d399);
  box-shadow: 0 4px 18px rgba(16, 185, 129, 0.35);
}

@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

/* Toast Notifications */
.wb-toast-container {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  z-index: 100000;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  pointer-events: none;
}

.wb-toast {
  pointer-events: auto;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 0.9rem 1.35rem;
  box-shadow: 0 12px 35px rgba(0, 0, 0, 0.35);
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--text-main);
  font-size: 0.88rem;
  font-weight: 600;
  transform: translateY(20px);
  opacity: 0;
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.3s ease;
  max-width: 400px;
}

.wb-toast.show {
  transform: translateY(0);
  opacity: 1;
}

.wb-toast.toast-success {
  border-left: 4px solid #10b981;
}

.wb-toast.toast-error {
  border-left: 4px solid #ef4444;
}

.wb-toast-icon {
  width: 22px;
  height: 22px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* User Profile Menu in Header */
.user-profile-menu {
  position: relative;
  display: inline-flex;
  align-items: center;
}

.user-profile-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.35rem 0.85rem 0.35rem 0.4rem;
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-full);
  color: var(--text-main);
  font-size: 0.88rem;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.2s ease;
  font-family: var(--font-body);
}

.user-profile-btn:hover {
  background: var(--bg-hover, #1f293d);
  border-color: var(--accent-primary);
  box-shadow: 0 4px 12px rgba(59, 130, 246, 0.2);
}

.user-avatar-circle {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent-primary), #60a5fa);
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 0.85rem;
  text-transform: uppercase;
  box-shadow: 0 2px 8px rgba(59, 130, 246, 0.4);
  flex-shrink: 0;
}

.user-name-label {
  max-width: 130px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.user-dropdown-arrow {
  color: var(--text-muted);
  transition: transform 0.2s ease;
  flex-shrink: 0;
}

.user-profile-menu.open .user-dropdown-arrow {
  transform: rotate(180deg);
}

.user-profile-dropdown {
  position: absolute;
  top: calc(100% + 0.6rem);
  right: 0;
  width: 250px;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  box-shadow: 0 16px 36px rgba(0, 0, 0, 0.45);
  padding: 0.75rem 0.5rem;
  display: none;
  flex-direction: column;
  gap: 0.25rem;
  z-index: 1000;
  backdrop-filter: blur(16px);
}

.user-profile-menu.open .user-profile-dropdown {
  display: flex;
}

.user-dropdown-header {
  padding: 0.6rem 0.85rem 0.75rem;
  border-bottom: 1px solid var(--border-subtle);
  margin-bottom: 0.35rem;
}

.user-dropdown-name {
  font-size: 0.92rem;
  font-weight: 800;
  color: var(--text-main);
  margin: 0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.user-dropdown-email {
  font-size: 0.78rem;
  color: var(--text-muted);
  margin: 0.2rem 0 0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.user-dropdown-item {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  padding: 0.6rem 0.85rem;
  border-radius: var(--radius-md);
  color: var(--text-main);
  font-size: 0.85rem;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.15s ease;
  cursor: pointer;
  border: none;
  background: none;
  width: 100%;
  text-align: left;
  font-family: inherit;
}

.user-dropdown-item:hover {
  background: rgba(59, 130, 246, 0.12);
  color: var(--accent-primary);
  transform: translateX(2px);
}

.user-dropdown-item.logout-item {
  color: #ef4444;
  border-top: 1px solid var(--border-subtle);
  margin-top: 0.25rem;
  padding-top: 0.65rem;
}

.user-dropdown-item.logout-item:hover {
  background: rgba(239, 68, 68, 0.12);
  color: #ef4444;
}

/* Mobile Drawer User Card */
.mobile-user-card {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  padding: 0.85rem 1rem;
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  margin-bottom: 1rem;
  text-align: left;
}

.mobile-user-info {
  display: flex;
  flex-direction: column;
  overflow: hidden;
  min-width: 0;
}

.mobile-user-name {
  font-size: 0.92rem;
  font-weight: 800;
  color: var(--text-main);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.mobile-user-email {
  font-size: 0.76rem;
  color: var(--text-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.mobile-logout-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1rem;
  background: rgba(239, 68, 68, 0.12);
  color: #ef4444;
  border: 1px solid rgba(239, 68, 68, 0.3);
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  font-weight: 700;
  width: 100%;
  cursor: pointer;
  margin-top: 0.5rem;
  transition: all 0.2s;
}

.mobile-logout-btn:hover {
  background: #ef4444;
  color: #ffffff;
}