/* ==========================================================================
   GiftCardMall.ai - Premium Futuristic CSS Stylesheet
   ========================================================================== */

/* Modern Typography Import */
@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700;800&family=Inter:wght@300;400;500;600;700&display=swap');

/* --- CSS Variables & Design System (Default: Dark Mode for Futuristic .AI Vibe) --- */
:root {
  --font-heading: 'Outfit', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;

  /* HSL Tailored Hues */
  --hue-primary: 255; /* Indigo */
  --hue-accent: 185;  /* Neon Cyan */
  
  --primary: hsl(var(--hue-primary), 85%, 62%);
  --primary-hover: hsl(var(--hue-primary), 85%, 54%);
  --primary-light: rgba(99, 102, 241, 0.1);
  
  --accent: hsl(var(--hue-accent), 90%, 45%);
  --accent-hover: hsl(var(--hue-accent), 90%, 38%);
  --accent-light: rgba(6, 182, 212, 0.1);
  
  /* Dark Mode Default Theme Variables */
  --bg-main: #060913;
  --bg-card: #0e1424;
  --bg-navbar: rgba(6, 9, 19, 0.85);
  
  --text-dark: #f8fafc;
  --text-muted: #94a3b8;
  --text-light: #64748b;
  --text-white: #ffffff;
  
  --border-color: rgba(255, 255, 255, 0.08);
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 10px rgba(0, 0, 0, 0.5), 0 2px 4px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.6), 0 10px 10px -5px rgba(0, 0, 0, 0.4);
  --shadow-glow: 0 0 25px rgba(99, 102, 241, 0.2);
  --shadow-accent-glow: 0 0 25px rgba(6, 182, 212, 0.25);
  
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 24px;
  --radius-xl: 40px;
  
  --transition-fast: 0.2s ease;
  --transition-normal: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

/* --- Light Mode System (User Preference Override) --- */
@media (prefers-color-scheme: light) {
  :root {
    --bg-main: #f5f7fb;
    --bg-card: #ffffff;
    --bg-navbar: rgba(245, 247, 251, 0.85);
    
    --text-dark: #0f172a;
    --text-muted: #475569;
    --text-light: #94a3b8;
    
    --border-color: rgba(0, 0, 0, 0.08);
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -1px rgba(0, 0, 0, 0.03);
    --shadow-lg: 0 20px 25px -5px rgba(99, 102, 241, 0.05), 0 10px 10px -5px rgba(0, 0, 0, 0.02);
    --shadow-glow: 0 0 25px rgba(99, 102, 241, 0.08);
    --shadow-accent-glow: 0 0 25px rgba(6, 182, 212, 0.1);
    
    --primary-light: rgba(99, 102, 241, 0.06);
    --accent-light: rgba(6, 182, 212, 0.06);
  }
}

/* --- Base Resets & Global Styles --- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

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

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--text-dark);
  font-weight: 700;
  line-height: 1.2;
}

p {
  color: var(--text-muted);
}

a {
  color: var(--primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--primary-hover);
}

ul, ol {
  list-style: none;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
  border-radius: var(--radius-md);
}

/* --- Layout Utilities --- */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.text-center { text-align: center; }
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }
.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }

.section-padding {
  padding: 6rem 0;
}

.gradient-text {
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
}

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

/* --- Header & Navigation Bar --- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background-color: var(--bg-navbar);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-color);
  transition: padding var(--transition-fast), background-color var(--transition-normal), border-color var(--transition-normal);
  padding: 0.25rem 0;
}

.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 4.5rem;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-family: var(--font-heading);
  font-size: 1.45rem;
  font-weight: 800;
  color: var(--text-dark);
}

.logo img {
  height: 2.4rem;
  width: auto;
  border-radius: var(--radius-sm);
  box-shadow: 0 0 15px rgba(6, 182, 212, 0.3);
}

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

.nav-link {
  font-weight: 500;
  color: var(--text-muted);
  font-size: 0.95rem;
  position: relative;
  padding: 0.25rem 0;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  transition: width var(--transition-fast);
  border-radius: 2px;
}

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

.nav-link:hover::after {
  width: 100%;
}

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

.nav-link.active::after {
  width: 100%;
}

.btn-nav {
  padding: 0.6rem 1.25rem;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 0.9rem;
}

/* Menu Toggle Button (Mobile) */
.menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 26px;
  height: 18px;
  background: transparent;
  border: none;
  cursor: pointer;
  z-index: 1010;
}

.menu-toggle span {
  display: block;
  height: 2px;
  width: 100%;
  background-color: var(--text-dark);
  border-radius: 4px;
  transition: all var(--transition-fast);
  transform-origin: left center;
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.85rem 1.85rem;
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  border: none;
  cursor: pointer;
  transition: all var(--transition-normal);
  font-family: var(--font-body);
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary) 0%, #4f46e5 100%);
  color: var(--text-white);
  box-shadow: 0 4px 15px rgba(99, 102, 241, 0.35);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(99, 102, 241, 0.5);
  background: linear-gradient(135deg, var(--primary-hover) 0%, #4338ca 100%);
}

.btn-secondary {
  background-color: var(--bg-card);
  color: var(--text-dark);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
}

.btn-secondary:hover {
  background-color: var(--border-color);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  border-color: var(--text-light);
}

.btn-accent {
  background: linear-gradient(135deg, var(--accent) 0%, #0891b2 100%);
  color: var(--bg-main);
  box-shadow: 0 4px 15px rgba(6, 182, 212, 0.3);
}

.btn-accent:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(6, 182, 212, 0.45);
  background: linear-gradient(135deg, var(--accent-hover) 0%, #0e7490 100%);
}

/* --- Hero Section --- */
.hero-section {
  padding: 9.5rem 0 6rem 0;
  position: relative;
  overflow: hidden;
  background: radial-gradient(circle at 85% 30%, var(--primary-light) 0%, transparent 60%),
              radial-gradient(circle at 15% 70%, var(--accent-light) 0%, transparent 50%);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 5rem;
  align-items: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background-color: var(--primary-light);
  color: var(--primary);
  padding: 0.45rem 1.1rem;
  border-radius: var(--radius-xl);
  font-size: 0.85rem;
  font-weight: 600;
  border: 1px solid rgba(99, 102, 241, 0.2);
  margin-bottom: 1.5rem;
}

.badge-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--accent);
  box-shadow: 0 0 10px var(--accent);
}

.hero-title {
  font-size: 3.4rem;
  line-height: 1.15;
  letter-spacing: -0.02em;
}

.hero-description {
  font-size: 1.15rem;
  margin-top: 1.5rem;
  margin-bottom: 2.5rem;
  max-width: 600px;
}

.hero-ctas {
  display: flex;
  gap: 1.25rem;
  flex-wrap: wrap;
}

.hero-visual {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero-card-container {
  position: relative;
  width: 100%;
  max-width: 420px;
  animation: floatCard 6s ease-in-out infinite;
}

.hero-card-img {
  width: 100%;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg), var(--shadow-glow);
  border: 1px solid rgba(255, 255, 255, 0.12);
}

.card-blur-circle {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 90%;
  height: 90%;
  background: radial-gradient(circle, var(--accent) 0%, transparent 65%);
  filter: blur(50px);
  opacity: 0.25;
  z-index: -1;
}

@keyframes floatCard {
  0%, 100% {
    transform: translateY(0) rotate(0deg);
  }
  50% {
    transform: translateY(-15px) rotate(2deg);
  }
}

/* --- Safety & Disclaimer Banner --- */
.disclaimer-banner {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-left: 4px solid var(--primary);
  border-radius: var(--radius-md);
  padding: 1.5rem 2rem;
  display: flex;
  gap: 1.25rem;
  align-items: flex-start;
  margin-bottom: 4rem;
  box-shadow: var(--shadow-md);
}

.disclaimer-icon {
  font-size: 1.5rem;
  line-height: 1;
  filter: drop-shadow(0 0 5px rgba(99, 102, 241, 0.4));
}

.disclaimer-text {
  font-size: 0.92rem;
  color: var(--text-muted);
}

.disclaimer-text strong {
  color: var(--text-dark);
}

/* --- Info Grid & Card Components --- */
.section-tag {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.section-title {
  font-size: 2.4rem;
  margin-top: 0.5rem;
  margin-bottom: 1rem;
}

.section-desc {
  max-width: 700px;
  margin: 0 auto 4rem auto;
  font-size: 1.05rem;
}

.info-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2rem;
}

.info-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  transition: all var(--transition-normal);
  box-shadow: var(--shadow-sm);
  position: relative;
  overflow: hidden;
}

.info-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.info-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg), var(--shadow-glow);
  border-color: rgba(99, 102, 241, 0.2);
}

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

.card-icon {
  width: 3.5rem;
  height: 3.5rem;
  border-radius: var(--radius-md);
  background-color: var(--primary-light);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 1.75rem;
  transition: all var(--transition-normal);
  border: 1px solid rgba(99, 102, 241, 0.1);
}

.info-card:hover .card-icon {
  background-color: var(--primary);
  color: var(--text-white);
  transform: scale(1.05);
  box-shadow: 0 4px 15px rgba(99, 102, 241, 0.4);
}

.card-title {
  font-size: 1.35rem;
  margin-bottom: 0.85rem;
}

.card-text {
  font-size: 0.95rem;
}

/* --- Interactive Simulator Widget --- */
.simulator-section {
  background: radial-gradient(circle at 10% 20%, var(--accent-light) 0%, transparent 40%),
              radial-gradient(circle at 90% 80%, var(--primary-light) 0%, transparent 45%);
}

.simulator-wrapper {
  max-width: 800px;
  margin: 0 auto;
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 3rem 2.5rem;
  box-shadow: var(--shadow-lg), var(--shadow-glow);
  position: relative;
  overflow: hidden;
}

.simulator-badge {
  position: absolute;
  top: 1.25rem;
  right: 1.25rem;
  background-color: var(--accent-light);
  color: var(--accent);
  border: 1px solid rgba(6, 182, 212, 0.2);
  padding: 0.35rem 0.85rem;
  border-radius: var(--radius-xl);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
}

.simulator-header {
  margin-bottom: 2.25rem;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 1.5rem;
}

.simulator-tabs {
  display: flex;
  gap: 1rem;
  margin-top: 1.5rem;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 0.75rem;
}

.sim-tab {
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-weight: 600;
  font-size: 0.95rem;
  padding: 0.5rem 1rem;
  cursor: pointer;
  position: relative;
  font-family: var(--font-heading);
  transition: color var(--transition-fast);
}

.sim-tab.active {
  color: var(--accent);
}

.sim-tab.active::after {
  content: '';
  position: absolute;
  bottom: -0.85rem;
  left: 0;
  width: 100%;
  height: 2px;
  background-color: var(--accent);
}

.simulator-body {
  margin-top: 2rem;
}

.sim-pane {
  display: none;
}

.sim-pane.active {
  display: block;
  animation: fadeIn 0.4s ease;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(5px); }
  to { opacity: 1; transform: translateY(0); }
}

.sim-form-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 3rem;
  align-items: center;
}

.sim-input-group {
  margin-bottom: 1.5rem;
}

.sim-label {
  display: block;
  font-size: 0.88rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: var(--text-dark);
}

.sim-input {
  width: 100%;
  background-color: var(--bg-main);
  border: 1px solid var(--border-color);
  padding: 0.85rem 1.1rem;
  border-radius: var(--radius-md);
  color: var(--text-dark);
  font-family: var(--font-body);
  font-size: 0.95rem;
  transition: all var(--transition-fast);
}

.sim-input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 12px rgba(6, 182, 212, 0.15);
}

.card-number-wrapper {
  position: relative;
}

.card-brand-logo {
  position: absolute;
  right: 1rem;
  top: 50%;
  transform: translateY(-50%);
  font-size: 1.2rem;
  color: var(--text-light);
  font-weight: 700;
}

.input-row-half {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
}

.sim-btn {
  width: 100%;
  padding: 0.9rem;
  margin-top: 1rem;
}

/* Graphic Representation of Card */
.sim-card-preview {
  background: linear-gradient(135deg, #1e1b4b 0%, #311042 100%);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-md);
  padding: 1.75rem;
  aspect-ratio: 1.58 / 1;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  box-shadow: var(--shadow-md), var(--shadow-glow);
  position: relative;
  overflow: hidden;
  color: var(--text-white);
}

.sim-card-preview::after {
  content: '';
  position: absolute;
  top: -30%;
  right: -20%;
  width: 60%;
  height: 100%;
  background: radial-gradient(circle, rgba(6, 182, 212, 0.15) 0%, transparent 70%);
  z-index: 1;
}

.card-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  z-index: 2;
}

.card-chip {
  width: 38px;
  height: 28px;
  background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
  border-radius: 4px;
}

.card-type-text {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  font-weight: 700;
  opacity: 0.75;
}

.card-mid {
  z-index: 2;
}

.card-number-display {
  font-family: monospace;
  font-size: 1.15rem;
  letter-spacing: 0.15em;
  word-spacing: 0.1em;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
}

.card-bottom {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  z-index: 2;
}

.card-holder-display {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  opacity: 0.8;
  max-width: 150px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.card-expiry-display {
  font-size: 0.75rem;
  font-family: monospace;
}

/* Simulator Output/Results Screen */
.sim-results-screen {
  text-align: center;
  padding: 1.5rem 0;
}

.success-icon {
  width: 4rem;
  height: 4rem;
  border-radius: 50%;
  background-color: var(--accent-light);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  margin: 0 auto 1.5rem auto;
  border: 1px solid rgba(6, 182, 212, 0.2);
  filter: drop-shadow(0 0 10px rgba(6, 182, 212, 0.3));
}

.results-table {
  width: 100%;
  max-width: 480px;
  margin: 2rem auto;
  border-collapse: collapse;
  background-color: var(--bg-main);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.results-table tr {
  border-bottom: 1px solid var(--border-color);
}

.results-table tr:last-child {
  border-bottom: none;
}

.results-table td {
  padding: 1rem 1.5rem;
  text-align: left;
}

.results-table td:first-child {
  font-weight: 600;
  color: var(--text-muted);
}

.results-table td:last-child {
  text-align: right;
  font-family: monospace;
  font-size: 1.05rem;
}

.text-success-val {
  color: var(--accent);
  font-weight: 700;
}

/* --- Split Layout Activation Section --- */
.activation-section {
  background-color: var(--bg-card);
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
}

.activation-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 5rem;
  align-items: center;
}

.activation-visual {
  position: relative;
}

.activation-visual img {
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border-color);
}

.steps-list {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.step-item {
  display: flex;
  gap: 1.5rem;
  background-color: var(--bg-main);
  padding: 1.5rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  transition: all var(--transition-normal);
}

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

.step-num {
  flex-shrink: 0;
  width: 2.8rem;
  height: 2.8rem;
  border-radius: 50%;
  background-color: var(--primary-light);
  color: var(--primary);
  font-weight: 800;
  font-size: 1.25rem;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading);
  border: 1px solid rgba(99, 102, 241, 0.1);
  transition: all var(--transition-fast);
}

.step-item:hover .step-num {
  background-color: var(--primary);
  color: var(--text-white);
  box-shadow: 0 4px 10px rgba(99, 102, 241, 0.3);
}

.step-title {
  font-size: 1.15rem;
  margin-bottom: 0.35rem;
}

.step-desc {
  font-size: 0.92rem;
}

/* --- FAQ Accordion Section --- */
.faq-section {
  background: radial-gradient(circle at 90% 10%, var(--primary-light) 0%, transparent 40%);
}

.faq-wrapper {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  margin-bottom: 1.25rem;
  overflow: hidden;
  background-color: var(--bg-card);
  transition: all var(--transition-fast);
}

.faq-item:hover {
  border-color: rgba(99, 102, 241, 0.25);
}

.faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.5rem 2rem;
  font-size: 1.15rem;
  font-weight: 600;
  cursor: pointer;
  user-select: none;
  background: transparent;
  border: none;
  width: 100%;
  text-align: left;
  color: var(--text-dark);
  font-family: var(--font-heading);
}

.faq-icon-box {
  width: 2rem;
  height: 2rem;
  border-radius: 50%;
  background-color: var(--bg-main);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  margin-left: 1.25rem;
  transition: transform var(--transition-normal), background-color var(--transition-fast);
  box-shadow: var(--shadow-sm);
  color: var(--text-dark);
  border: 1px solid var(--border-color);
}

.faq-item.active {
  border-color: var(--primary);
  box-shadow: var(--shadow-glow);
}

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

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-normal) ease-out;
  padding: 0 2rem;
}

.faq-answer-inner {
  padding-bottom: 1.5rem;
  color: var(--text-muted);
  font-size: 0.98rem;
  line-height: 1.62;
}

/* --- Inner Pages Layouts --- */
.inner-hero {
  padding: 8.5rem 0 4rem 0;
  background: radial-gradient(circle at 50% 10%, var(--primary-light) 0%, transparent 60%);
  text-align: center;
  border-bottom: 1px solid var(--border-color);
}

.inner-hero h1 {
  font-size: 3rem;
  letter-spacing: -0.01em;
}

.breadcrumb {
  display: inline-flex;
  gap: 0.5rem;
  align-items: center;
  margin-top: 1.25rem;
  font-size: 0.88rem;
  color: var(--text-light);
}

.breadcrumb a {
  color: var(--text-muted);
}

.breadcrumb a:hover {
  color: var(--primary);
}

.breadcrumb-sep {
  color: var(--text-light);
}

.content-section {
  padding: 5rem 0;
}

.rich-content {
  max-width: 800px;
  margin: 0 auto;
}

.rich-content h2 {
  font-size: 1.85rem;
  margin-top: 2.75rem;
  margin-bottom: 1.25rem;
}

.rich-content h3 {
  font-size: 1.4rem;
  margin-top: 2rem;
  margin-bottom: 0.85rem;
}

.rich-content p {
  margin-bottom: 1.5rem;
  font-size: 1.05rem;
  color: var(--text-muted);
}

.rich-content ul, .rich-content ol {
  margin-bottom: 1.75rem;
  padding-left: 1.75rem;
}

.rich-content ul li {
  list-style-type: disc;
  margin-bottom: 0.65rem;
  color: var(--text-muted);
  font-size: 1.05rem;
}

.rich-content ol li {
  list-style-type: decimal;
  margin-bottom: 0.65rem;
  color: var(--text-muted);
  font-size: 1.05rem;
}

/* Contact Grid & Form */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 5rem;
}

.contact-info-block {
  display: flex;
  flex-direction: column;
  gap: 2.25rem;
}

.contact-card {
  display: flex;
  gap: 1.5rem;
  align-items: flex-start;
  background-color: var(--bg-card);
  padding: 1.75rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
}

.contact-icon {
  width: 3.25rem;
  height: 3.25rem;
  border-radius: var(--radius-md);
  background-color: var(--accent-light);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.35rem;
  flex-shrink: 0;
  border: 1px solid rgba(6, 182, 212, 0.1);
}

.contact-title {
  font-size: 1.2rem;
  margin-bottom: 0.35rem;
}

.contact-desc {
  font-size: 0.98rem;
  color: var(--text-muted);
}

.contact-form-wrapper {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 3rem 2.5rem;
  box-shadow: var(--shadow-lg);
}

.contact-form-wrapper h2 {
  font-size: 1.75rem;
  margin-bottom: 1.5rem;
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-label {
  display: block;
  font-size: 0.88rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: var(--text-dark);
}

.form-control {
  width: 100%;
  background-color: var(--bg-main);
  border: 1px solid var(--border-color);
  padding: 0.85rem 1.1rem;
  border-radius: var(--radius-md);
  color: var(--text-dark);
  font-family: var(--font-body);
  font-size: 0.95rem;
  transition: all var(--transition-fast);
}

.form-control:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 12px rgba(99, 102, 241, 0.15);
}

textarea.form-control {
  min-height: 140px;
  resize: vertical;
}

.form-alert {
  margin-top: 1.25rem;
  padding: 1rem;
  border-radius: var(--radius-md);
  display: none;
  font-size: 0.9rem;
}

.form-alert.success {
  display: block;
  background-color: var(--accent-light);
  color: var(--accent);
  border: 1px solid rgba(6, 182, 212, 0.2);
}

/* --- Site Footer --- */
.site-footer {
  background-color: #03050a;
  border-top: 1px solid var(--border-color);
  padding: 5rem 0 3rem 0;
  color: #94a3b8;
  font-size: 0.92rem;
}

@media (prefers-color-scheme: light) {
  .site-footer {
    background-color: #0e1420;
    color: #cbd5e1;
  }
}

.footer-disclaimer-box {
  background-color: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: var(--radius-md);
  padding: 1.5rem 2rem;
  font-size: 0.85rem;
  line-height: 1.55;
  margin-bottom: 3.5rem;
  color: #64748b;
}

.footer-disclaimer-box strong {
  color: #cbd5e1;
}

.footer-top {
  display: grid;
  grid-template-columns: 1.5fr repeat(3, 0.85fr);
  gap: 4rem;
  margin-bottom: 4rem;
}

.footer-brand .logo {
  color: var(--text-white);
  margin-bottom: 1.25rem;
}

.footer-brand p {
  color: #64748b;
  line-height: 1.55;
  font-size: 0.9rem;
}

.footer-title {
  color: var(--text-white);
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.footer-links a {
  color: #94a3b8;
  transition: all var(--transition-fast);
}

.footer-links a:hover {
  color: var(--accent);
  transform: translateX(3px);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  padding-top: 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1.5rem;
  font-size: 0.85rem;
  color: #475569;
}

.footer-bottom p strong {
  color: #64748b;
}

/* --- Responsive Layouts & Breakpoints --- */
@media (max-width: 1024px) {
  .hero-title {
    font-size: 2.8rem;
  }
  
  .hero-grid, .activation-grid, .contact-grid {
    gap: 3rem;
  }
}

@media (max-width: 768px) {
  .section-padding {
    padding: 4.5rem 0;
  }
  
  .navbar {
    height: 4rem;
  }

  .menu-toggle {
    display: flex;
  }

  .nav-links {
    position: fixed;
    top: 4rem;
    left: 0;
    width: 100%;
    height: 0;
    background-color: var(--bg-navbar);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    flex-direction: column;
    gap: 0;
    overflow: hidden;
    transition: height var(--transition-normal);
    border-bottom: 0 solid var(--border-color);
  }

  .nav-links.active {
    height: calc(100vh - 4rem);
    border-bottom: 1px solid var(--border-color);
    padding: 2rem 0;
    overflow-y: auto;
  }

  .nav-link {
    width: 100%;
    text-align: center;
    padding: 1.25rem 0;
    font-size: 1.1rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.03);
  }

  .nav-link::after {
    display: none;
  }
  
  .btn-nav {
    margin-top: 1.5rem;
    width: 80%;
  }

  /* Hamburger Active Animation */
  .menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(2px, 1px);
  }
  
  .menu-toggle.active span:nth-child(2) {
    opacity: 0;
  }
  
  .menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(1px, -1px);
  }

  .hero-grid {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 3.5rem;
  }
  
  .hero-description {
    margin: 1.25rem auto 2rem auto;
  }

  .hero-ctas {
    justify-content: center;
  }
  
  .hero-visual {
    order: -1;
  }
  
  .hero-card-container {
    max-width: 320px;
  }

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

  .sim-form-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  
  .sim-card-preview {
    max-width: 340px;
    margin: 0 auto;
  }

  .activation-grid {
    grid-template-columns: 1fr;
    gap: 3.5rem;
  }
  
  .activation-visual {
    max-width: 420px;
    margin: 0 auto;
  }

  .contact-grid {
    grid-template-columns: 1fr;
    gap: 3.5rem;
  }
  
  .footer-top {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
  
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
}