/* ==========================================================================
   MyTempMails - World-Class Disposable Temporary Email Design System
   Award-Winning Futuristic Glassmorphism & High-Precision UI
   ========================================================================== */

:root {
  /* Color Palette - Modern Tech & Deep Sapphire Navy */
  --bg-dark: #040915;
  --bg-card: rgba(7, 18, 40, 0.75);
  --bg-card-hover: rgba(11, 26, 56, 0.88);
  --bg-surface: #071328;
  --bg-input: rgba(5, 13, 30, 0.88);
  --bg-glass-highlight: rgba(0, 242, 254, 0.05);
  
  --border-subtle: rgba(0, 242, 254, 0.10);
  --border-card: rgba(0, 210, 255, 0.16);
  --border-focus: rgba(0, 242, 254, 0.85);
  --border-glow: rgba(0, 140, 255, 0.45);

  /* Primary Brand Gradients - Electric Cyan & Deep Sapphire */
  --primary: #00d2ff;
  --primary-hover: #00b4d8;
  --secondary: #0066ff;
  --accent-cyan: #00f2fe;
  --accent-pink: #38bdf8;
  
  --gradient-brand: linear-gradient(135deg, #00f2fe 0%, #0088ff 50%, #0044ff 100%);
  --gradient-brand-subtle: linear-gradient(135deg, rgba(0, 242, 254, 0.15) 0%, rgba(0, 136, 255, 0.15) 50%, rgba(0, 68, 255, 0.15) 100%);
  --gradient-accent: linear-gradient(135deg, #00f2fe 0%, #0066ff 100%);
  --gradient-emerald: linear-gradient(135deg, #10b981 0%, #059669 100%);
  --gradient-amber: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
  --gradient-glow: radial-gradient(circle at 50% 0%, rgba(0, 242, 254, 0.28) 0%, rgba(0, 102, 255, 0.12) 50%, transparent 70%);

  /* Status Colors */
  --success: #10b981;
  --success-glow: rgba(16, 185, 129, 0.3);
  --warning: #f59e0b;
  --warning-glow: rgba(245, 158, 11, 0.3);
  --danger: #ef4444;
  --danger-glow: rgba(239, 68, 68, 0.3);
  --info: #00f2fe;

  /* Typography Colors */
  --text-main: #f0f7ff;
  --text-muted: #94a9c9;
  --text-subtle: #627b9f;
  --text-inverse: #040915;

  /* Typography */
  --font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

  /* Radii & Shadows */
  --radius-xs: 6px;
  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-xl: 32px;
  --radius-full: 9999px;

  --shadow-sm: 0 4px 12px rgba(2, 6, 23, 0.35);
  --shadow-md: 0 12px 32px -4px rgba(2, 6, 23, 0.55), 0 4px 16px -2px rgba(0, 102, 255, 0.15);
  --shadow-lg: 0 24px 50px -12px rgba(2, 6, 23, 0.75), 0 0 40px -5px rgba(0, 210, 255, 0.22);
  --shadow-glow: 0 0 35px rgba(0, 242, 254, 0.45);

  /* Transitions */
  --transition-fast: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-smooth: 0.28s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-spring: 0.45s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

/* Light Theme Variables (Crisp Cloud Ice & Sapphire) */
[data-theme="light"] {
  --bg-dark: #f0f6ff;
  --bg-card: rgba(255, 255, 255, 0.90);
  --bg-card-hover: rgba(255, 255, 255, 0.98);
  --bg-surface: #ffffff;
  --bg-input: #e9f2fd;
  --bg-glass-highlight: rgba(255, 255, 255, 0.85);
  
  --border-subtle: rgba(2, 132, 199, 0.12);
  --border-card: rgba(2, 132, 199, 0.18);
  --border-focus: rgba(2, 132, 199, 0.75);
  --border-glow: rgba(56, 189, 248, 0.3);

  --text-main: #061938;
  --text-muted: #385175;
  --text-subtle: #6681a3;
  --text-inverse: #ffffff;

  --shadow-sm: 0 2px 10px rgba(2, 132, 199, 0.05);
  --shadow-md: 0 12px 28px -6px rgba(2, 132, 199, 0.12), 0 4px 12px -2px rgba(2, 132, 199, 0.05);
  --shadow-lg: 0 24px 48px -12px rgba(2, 132, 199, 0.18), 0 0 35px rgba(0, 210, 255, 0.12);
  --shadow-glow: 0 0 30px rgba(0, 210, 255, 0.28);
}

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

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

body {
  font-family: var(--font-family);
  background-color: var(--bg-dark);
  color: var(--text-main);
  line-height: 1.6;
  min-height: 100vh;
  position: relative;
  overflow-x: hidden;
  transition: background-color var(--transition-smooth), color var(--transition-smooth);
}

/* Background Futuristic Mesh Grid & Ambient Glow */
.bg-ambient {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
  background-image: radial-gradient(var(--border-subtle) 1px, transparent 1px);
  background-size: 32px 32px;
}

.glow-orb-1 {
  position: absolute;
  top: -180px;
  left: 15%;
  width: 650px;
  height: 650px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0, 242, 254, 0.24) 0%, transparent 68%);
  filter: blur(80px);
  animation: floatOrb 20s ease-in-out infinite alternate;
}

.glow-orb-2 {
  position: absolute;
  top: 180px;
  right: -120px;
  width: 700px;
  height: 700px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0, 102, 255, 0.22) 0%, transparent 68%);
  filter: blur(90px);
  animation: floatOrb 24s ease-in-out infinite alternate-reverse;
}

.glow-orb-3 {
  position: absolute;
  bottom: -100px;
  left: 28%;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(56, 189, 248, 0.18) 0%, transparent 68%);
  filter: blur(90px);
}

@keyframes floatOrb {
  0% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(45px, 35px) scale(1.08); }
  100% { transform: translate(-35px, 55px) scale(0.94); }
}

/* Layout Container */
.app-container {
  position: relative;
  z-index: 1;
  max-width: 1260px;
  margin: 0 auto;
  padding: 0 1.5rem 3.5rem;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* ==========================================================================
   Header & Navigation
   ========================================================================== */
.site-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.25rem 0;
  margin-bottom: 2.25rem;
  border-bottom: 1px solid var(--border-subtle);
  position: sticky;
  top: 0;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  z-index: 40;
}

.brand-wrapper {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  text-decoration: none;
  color: inherit;
  transition: transform var(--transition-fast);
}

.brand-wrapper:hover {
  transform: scale(1.02);
}

.brand-icon {
  width: 46px;
  height: 46px;
  border-radius: 14px;
  background: var(--gradient-brand);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1.6rem;
  box-shadow: 0 6px 18px rgba(0, 210, 255, 0.45);
  position: relative;
}

.brand-icon::after {
  content: '';
  position: absolute;
  top: 2px;
  right: 2px;
  width: 11px;
  height: 11px;
  background-color: var(--success);
  border-radius: 50%;
  border: 2px solid var(--bg-dark);
}

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

.brand-title {
  font-size: 1.45rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  background: var(--gradient-brand);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  display: flex;
  align-items: center;
  gap: 0.45rem;
}

.brand-badge {
  font-size: 0.65rem;
  font-weight: 800;
  padding: 0.15rem 0.55rem;
  border-radius: var(--radius-full);
  background: linear-gradient(135deg, rgba(0, 242, 254, 0.22), rgba(0, 102, 255, 0.22));
  color: #38bdf8;
  border: 1px solid rgba(0, 242, 254, 0.4);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  vertical-align: middle;
}

.brand-subtitle {
  font-size: 0.78rem;
  color: var(--text-muted);
  font-weight: 500;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}

/* ==========================================================================
   Web Tools Dropdown in Header
   ========================================================================== */
.web-tools-dropdown-wrap {
  position: relative;
  display: inline-block;
}

.btn-web-tools {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 0.45rem 0.85rem;
  font-family: inherit;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text-main);
  cursor: pointer;
  transition: all var(--transition-fast);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.btn-web-tools i.ri-apps-2-line {
  color: var(--primary);
  font-size: 1.05rem;
}

.btn-web-tools .chevron-icon {
  font-size: 1rem;
  color: var(--text-muted);
  transition: transform var(--transition-fast);
}

.btn-web-tools:hover,
.web-tools-dropdown-wrap:hover .btn-web-tools,
.web-tools-dropdown-wrap.open .btn-web-tools {
  border-color: var(--border-focus);
  color: var(--primary);
  box-shadow: 0 0 16px rgba(0, 210, 255, 0.25);
}

.web-tools-dropdown-wrap:hover .chevron-icon,
.web-tools-dropdown-wrap.open .chevron-icon {
  transform: rotate(180deg);
}

.web-tools-menu {
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  width: 320px;
  background: var(--bg-surface);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-md);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5);
  padding: 0.65rem;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: opacity var(--transition-fast), transform var(--transition-fast), visibility var(--transition-fast);
  z-index: 100;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}

[data-theme="light"] .web-tools-menu {
  background: #ffffff;
  border-color: rgba(0, 0, 0, 0.1);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.12);
}

.web-tools-dropdown-wrap:hover .web-tools-menu,
.web-tools-dropdown-wrap:focus-within .web-tools-menu,
.web-tools-dropdown-wrap.open .web-tools-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.web-tool-item {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  padding: 0.65rem 0.75rem;
  border-radius: var(--radius-sm);
  text-decoration: none;
  color: var(--text-main);
  transition: all var(--transition-fast);
}

.web-tool-item:hover {
  background: rgba(0, 242, 254, 0.08);
  transform: translateX(3px);
}

.tool-icon-box {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.15rem;
  flex-shrink: 0;
  transition: transform var(--transition-fast);
}

.web-tool-item:hover .tool-icon-box {
  transform: scale(1.08);
}

.tool-info {
  display: flex;
  flex-direction: column;
  flex-grow: 1;
  overflow: hidden;
}

.tool-title {
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--text-main);
  line-height: 1.3;
}

.tool-desc {
  font-size: 0.74rem;
  color: var(--text-muted);
  line-height: 1.3;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.tool-arrow {
  color: var(--text-subtle);
  font-size: 0.95rem;
  transition: all var(--transition-fast);
  opacity: 0.5;
}

.web-tool-item:hover .tool-arrow {
  opacity: 1;
  color: var(--primary);
  transform: translate(2px, -2px);
}

@media (max-width: 640px) {
  .btn-web-tools span {
    display: none;
  }
  .web-tools-menu {
    width: 280px;
    left: auto;
    right: 0;
  }
}

/* Multi-Provider Selector */
.provider-selector-wrap {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 0.4rem 0.85rem;
  transition: all var(--transition-fast);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.provider-selector-wrap:hover {
  border-color: var(--border-focus);
  box-shadow: 0 0 16px rgba(0, 210, 255, 0.3);
}

.provider-selector-wrap i {
  color: var(--primary);
  font-size: 1.1rem;
}

.provider-select {
  background: transparent;
  border: none;
  color: var(--text-main);
  font-family: var(--font-family);
  font-size: 0.85rem;
  font-weight: 700;
  cursor: pointer;
  outline: none;
}

.provider-select option {
  background: var(--bg-surface);
  color: var(--text-main);
  padding: 8px;
}

/* Connection Status Badge */
.status-pill {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.42rem 0.9rem;
  border-radius: var(--radius-full);
  background: rgba(16, 185, 129, 0.12);
  border: 1px solid rgba(16, 185, 129, 0.35);
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--success);
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--success);
  box-shadow: 0 0 10px var(--success);
  animation: pulseDot 2s infinite;
}

@keyframes pulseDot {
  0% { transform: scale(0.95); opacity: 0.8; }
  50% { transform: scale(1.3); opacity: 1; }
  100% { transform: scale(0.95); opacity: 0.8; }
}

.icon-button {
  width: 42px;
  height: 42px;
  border-radius: var(--radius-sm);
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  color: var(--text-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-fast);
  font-size: 1.2rem;
  position: relative;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.icon-button:hover {
  background: var(--bg-card-hover);
  color: var(--text-main);
  border-color: var(--border-focus);
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}

/* ==========================================================================
   Hero & Temp Mail Box Section
   ========================================================================== */
.hero-section {
  text-align: center;
  margin-bottom: 2.75rem;
  position: relative;
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.4rem 1rem;
  border-radius: var(--radius-full);
  background: rgba(0, 210, 255, 0.12);
  border: 1px solid rgba(0, 210, 255, 0.32);
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 1.1rem;
  backdrop-filter: blur(12px);
}

.provider-badge-indicator {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.72rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.15rem 0.6rem;
  border-radius: var(--radius-full);
  background: linear-gradient(135deg, rgba(0, 242, 254, 0.2), rgba(0, 102, 255, 0.2));
  color: #38bdf8;
  border: 1px solid rgba(0, 242, 254, 0.4);
}

.hero-title {
  font-size: clamp(2.2rem, 5vw, 3.6rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.035em;
  margin-bottom: 0.85rem;
}

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

.hero-desc {
  font-size: 1.1rem;
  color: var(--text-muted);
  max-width: 660px;
  margin: 0 auto 2.25rem;
  line-height: 1.65;
}

/* Mailbox Command Center Card (Vercel/Linear Tier Glass Card) */
.mail-generator-card {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-xl);
  padding: 2.25rem 2.5rem;
  box-shadow: var(--shadow-lg);
  backdrop-filter: blur(28px);
  -webkit-backdrop-filter: blur(28px);
  position: relative;
  overflow: hidden;
  max-width: 880px;
  margin: 0 auto;
  transition: all var(--transition-smooth);
}

/* Glowing Top Border Accent */
.mail-generator-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient-brand);
  box-shadow: 0 0 20px rgba(0, 242, 254, 0.85);
}

/* Email Display Box */
.email-box-wrapper {
  position: relative;
  margin-bottom: 1.75rem;
}

.email-display-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--bg-input);
  border: 2px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 0.85rem 1.15rem 0.85rem 1.65rem;
  transition: all var(--transition-smooth);
  position: relative;
  overflow: hidden;
}

.email-display-container:hover, .email-display-container:focus-within {
  border-color: var(--border-focus);
  box-shadow: 0 0 28px rgba(0, 210, 255, 0.32);
}

.email-left-info {
  display: flex;
  align-items: center;
  gap: 0.95rem;
  flex: 1;
  min-width: 0;
}

.email-lead-icon {
  font-size: 1.5rem;
  color: var(--primary);
  flex-shrink: 0;
  filter: drop-shadow(0 0 8px rgba(0, 242, 254, 0.6));
}

.email-address-text {
  font-family: var(--font-mono);
  font-size: clamp(1.05rem, 2.7vw, 1.55rem);
  font-weight: 700;
  color: var(--text-main);
  letter-spacing: -0.015em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  user-select: all;
  text-align: left;
}

.email-loading-state {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  color: var(--text-muted);
  font-size: 1rem;
}

.btn-inline-copy {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  background: var(--gradient-brand);
  color: white;
  border: none;
  padding: 0.75rem 1.45rem;
  border-radius: var(--radius-md);
  font-family: var(--font-family);
  font-size: 0.98rem;
  font-weight: 700;
  cursor: pointer;
  box-shadow: 0 6px 20px rgba(0, 102, 255, 0.45);
  transition: all var(--transition-fast);
  flex-shrink: 0;
  position: relative;
  overflow: hidden;
}

.btn-inline-copy::after {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.25), transparent);
  transition: left 0.6s ease;
}

.btn-inline-copy:hover::after {
  left: 100%;
}

.btn-inline-copy:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(0, 210, 255, 0.55);
  filter: brightness(1.1);
}

.btn-inline-copy:active {
  transform: translateY(1px) scale(0.98);
}

/* Timer and Progress Meta Bar */
.meta-status-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  margin-bottom: 2rem;
  padding: 0.95rem 1.35rem;
  background: var(--bg-glass-highlight);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-subtle);
}

.timer-group {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  flex: 1;
}

.timer-badge {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  font-family: var(--font-mono);
  font-size: 1.18rem;
  font-weight: 700;
  color: var(--primary);
  background: rgba(0, 210, 255, 0.12);
  padding: 0.35rem 0.85rem;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(0, 210, 255, 0.32);
  box-shadow: 0 2px 8px rgba(0, 210, 255, 0.18);
}

.timer-badge.warning {
  color: var(--warning);
  background: rgba(245, 158, 11, 0.18);
  border-color: rgba(245, 158, 11, 0.4);
}

.timer-badge.danger {
  color: var(--danger);
  background: rgba(239, 68, 68, 0.18);
  border-color: rgba(239, 68, 68, 0.4);
  animation: pulseDanger 1.2s infinite;
}

@keyframes pulseDanger {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.65; }
}

.timer-progress-track {
  flex: 1;
  height: 9px;
  background: var(--bg-surface);
  border-radius: var(--radius-full);
  overflow: hidden;
  position: relative;
  border: 1px solid var(--border-subtle);
}

.timer-progress-fill {
  height: 100%;
  width: 100%;
  background: var(--gradient-brand);
  border-radius: var(--radius-full);
  transition: width 1s linear, background-color 0.4s ease;
  box-shadow: 0 0 12px rgba(0, 242, 254, 0.6);
}

.timer-actions {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.btn-timer-extend {
  background: transparent;
  border: 1px solid var(--border-subtle);
  color: var(--text-muted);
  font-size: 0.82rem;
  font-weight: 700;
  padding: 0.4rem 0.85rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.4rem;
  transition: all var(--transition-fast);
}

.btn-timer-extend:hover {
  background: rgba(139, 92, 246, 0.15);
  color: var(--primary);
  border-color: var(--border-focus);
  transform: translateY(-1px);
}

/* Action Control Buttons Grid */
.actions-toolbar {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(145px, 1fr));
  gap: 0.85rem;
}

.action-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  color: var(--text-main);
  padding: 0.85rem 1.1rem;
  border-radius: var(--radius-md);
  font-family: var(--font-family);
  font-size: 0.92rem;
  font-weight: 700;
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.action-btn i {
  font-size: 1.2rem;
  color: var(--primary);
  transition: transform var(--transition-fast);
}

.action-btn:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-focus);
  transform: translateY(-2px);
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.25);
}

.action-btn:hover i {
  transform: scale(1.2);
}

.action-btn.btn-sync.spinning i {
  animation: spin 1s linear infinite;
}

.action-btn.btn-danger {
  color: #f87171;
}

.action-btn.btn-danger i {
  color: #f87171;
}

.action-btn.btn-danger:hover {
  background: rgba(239, 68, 68, 0.12);
  border-color: rgba(239, 68, 68, 0.4);
}

/* Stats Ticker Strip */
.stats-ticker-strip {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1.25rem;
  margin-top: 1.75rem;
  font-size: 0.88rem;
  color: var(--text-muted);
  font-weight: 700;
  flex-wrap: wrap;
}

.ticker-item {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  transition: color var(--transition-fast);
}

.ticker-item:hover {
  color: var(--primary);
}

.ticker-item i {
  color: var(--primary);
  font-size: 1.05rem;
}

.ticker-dot {
  color: var(--border-focus);
  opacity: 0.4;
}

/* ==========================================================================
   Real-Time Inbox Section
   ========================================================================== */
.inbox-section {
  margin-top: 2.5rem;
  margin-bottom: 4rem;
}

.inbox-card-wrapper {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  backdrop-filter: blur(28px);
  -webkit-backdrop-filter: blur(28px);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  min-height: 560px;
}

.inbox-topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.35rem 2rem;
  background: var(--bg-glass-highlight);
  border-bottom: 1px solid var(--border-subtle);
}

.inbox-title-group {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

.inbox-title-group h2 {
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.inbox-counter {
  font-size: 0.78rem;
  font-weight: 800;
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-full);
  background: var(--gradient-brand);
  color: white;
  box-shadow: 0 2px 8px rgba(0, 210, 255, 0.45);
}

.inbox-status-info {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.btn-send-test {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(0, 210, 255, 0.12);
  border: 1px solid rgba(0, 210, 255, 0.35);
  color: var(--primary);
  padding: 0.5rem 1rem;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  font-weight: 700;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.btn-send-test:hover {
  background: var(--primary);
  color: var(--text-inverse);
  transform: translateY(-1px);
  box-shadow: 0 4px 14px rgba(0, 210, 255, 0.45);
}

.auto-poll-indicator {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 600;
}

.radar-signal {
  position: relative;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--primary);
}

.radar-signal::after {
  content: '';
  position: absolute;
  top: -5px;
  left: -5px;
  right: -5px;
  bottom: -5px;
  border-radius: 50%;
  border: 1.5px solid var(--primary);
  animation: radarWave 2s infinite;
}

@keyframes radarWave {
  0% { transform: scale(0.6); opacity: 1; }
  100% { transform: scale(2.6); opacity: 0; }
}

/* Split Pane: Email List (Left) + Detail Reader (Right) */
.inbox-split-view {
  display: grid;
  grid-template-columns: 390px 1fr;
  flex: 1;
  min-height: 500px;
}

/* Message List Pane */
.email-list-pane {
  border-right: 1px solid var(--border-subtle);
  overflow-y: auto;
  max-height: 640px;
  background: rgba(0, 0, 0, 0.08);
}

/* Empty State */
.inbox-empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 4.5rem 2rem;
  color: var(--text-muted);
  height: 100%;
}

.empty-radar-icon {
  width: 78px;
  height: 78px;
  border-radius: 50%;
  background: rgba(0, 210, 255, 0.12);
  border: 1px solid rgba(0, 210, 255, 0.32);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  font-size: 2.2rem;
  margin-bottom: 1.4rem;
  position: relative;
}

.empty-radar-icon::before {
  content: '';
  position: absolute;
  width: 100%;
  height: 100%;
  border-radius: 50%;
  border: 2px dashed rgba(0, 210, 255, 0.45);
  animation: spin 12s linear infinite;
}

.inbox-empty-state h3 {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--text-main);
  margin-bottom: 0.45rem;
}

.inbox-empty-state p {
  font-size: 0.9rem;
  max-width: 280px;
  margin-bottom: 1.5rem;
  line-height: 1.55;
}

/* Email Item in List */
.email-row-item {
  padding: 1.25rem 1.35rem;
  border-bottom: 1px solid var(--border-subtle);
  cursor: pointer;
  transition: all var(--transition-fast);
  position: relative;
  border-left: 3px solid transparent;
}

.email-row-item:hover {
  background: var(--bg-card-hover);
}

.email-row-item.active {
  background: rgba(0, 210, 255, 0.14);
  border-left-color: var(--primary);
}

.email-row-item.unread {
  font-weight: 700;
}

.email-row-item.unread .row-sender-name {
  color: var(--text-main);
  font-weight: 800;
}

.email-row-item.unread::after {
  content: '';
  position: absolute;
  top: 1.35rem;
  right: 1.35rem;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--primary);
  box-shadow: 0 0 8px var(--primary);
}

.email-row-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.45rem;
  padding-right: 1.25rem;
}

.row-sender-wrapper {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  min-width: 0;
}

.row-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--gradient-brand);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  font-weight: 800;
  flex-shrink: 0;
  box-shadow: 0 2px 8px rgba(0, 210, 255, 0.4);
}

.row-sender-name {
  font-size: 0.95rem;
  color: var(--text-main);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.row-time {
  font-size: 0.75rem;
  color: var(--text-subtle);
  white-space: nowrap;
  font-family: var(--font-mono);
  font-weight: 600;
}

.row-subject {
  font-size: 0.92rem;
  color: var(--text-main);
  margin-bottom: 0.35rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.row-snippet {
  font-size: 0.82rem;
  color: var(--text-muted);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  line-height: 1.45;
}

/* Detail Reader Pane */
.email-detail-pane {
  display: flex;
  flex-direction: column;
  background: var(--bg-surface);
  overflow-y: auto;
  max-height: 640px;
  position: relative;
}

.detail-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100%;
  padding: 3.5rem;
  color: var(--text-subtle);
  text-align: center;
}

.detail-placeholder i {
  font-size: 3.5rem;
  margin-bottom: 1.25rem;
  opacity: 0.35;
  color: var(--primary);
}

.detail-view-container {
  display: flex;
  flex-direction: column;
  height: 100%;
}

.detail-header-card {
  padding: 1.75rem 2rem;
  border-bottom: 1px solid var(--border-subtle);
  background: var(--bg-glass-highlight);
}

.detail-subject-line {
  font-size: 1.45rem;
  font-weight: 800;
  color: var(--text-main);
  margin-bottom: 1rem;
  word-break: break-word;
  letter-spacing: -0.02em;
}

.detail-meta-grid {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1.25rem;
}

.detail-sender-info {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

.detail-avatar-large {
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: var(--gradient-brand);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  font-weight: 800;
  box-shadow: 0 4px 14px rgba(0, 102, 255, 0.45);
}

.detail-sender-text h4 {
  font-size: 1rem;
  font-weight: 800;
  color: var(--text-main);
}

.detail-sender-text p {
  font-size: 0.82rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

.detail-actions-cluster {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.detail-action-btn {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  color: var(--text-muted);
  padding: 0.5rem 0.95rem;
  border-radius: var(--radius-sm);
  font-size: 0.82rem;
  font-weight: 700;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.4rem;
  transition: all var(--transition-fast);
}

.detail-action-btn:hover {
  background: var(--bg-card-hover);
  color: var(--text-main);
  border-color: var(--border-focus);
  transform: translateY(-1px);
}

.detail-action-btn.delete:hover {
  background: rgba(239, 68, 68, 0.18);
  color: var(--danger);
  border-color: var(--danger);
}

/* Format View Toggle Bar (HTML vs Plain Text) */
.view-format-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.65rem 2rem;
  background: rgba(0, 0, 0, 0.15);
  border-bottom: 1px solid var(--border-subtle);
  font-size: 0.82rem;
}

.format-pills {
  display: flex;
  background: var(--bg-input);
  border-radius: var(--radius-sm);
  padding: 3px;
  border: 1px solid var(--border-subtle);
}

.format-pill {
  padding: 0.3rem 0.85rem;
  border: none;
  background: transparent;
  color: var(--text-muted);
  font-size: 0.78rem;
  font-weight: 700;
  border-radius: 6px;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.format-pill.active {
  background: var(--primary);
  color: var(--text-inverse);
  box-shadow: 0 2px 8px rgba(0, 210, 255, 0.4);
}

/* Email Body Area */
.email-body-content {
  flex: 1;
  padding: 1.75rem 2rem;
  overflow-y: auto;
}

.email-iframe-viewer {
  width: 100%;
  min-height: 400px;
  border: none;
  background: white;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
}

.email-plain-text-viewer {
  font-family: var(--font-family);
  font-size: 1rem;
  line-height: 1.75;
  color: var(--text-main);
  white-space: pre-wrap;
  word-break: break-word;
  background: var(--bg-card);
  padding: 1.75rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-subtle);
  box-shadow: var(--shadow-sm);
}

/* Attachments Container */
.attachments-wrapper {
  margin-top: 1.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border-subtle);
}

.attachments-title {
  font-size: 0.9rem;
  font-weight: 800;
  color: var(--text-muted);
  margin-bottom: 0.85rem;
  display: flex;
  align-items: center;
  gap: 0.45rem;
}

.attachments-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
}

.attachment-badge-chip {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.5rem 1rem;
  border-radius: var(--radius-sm);
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  color: var(--text-main);
  text-decoration: none;
  font-size: 0.85rem;
  font-weight: 600;
  transition: all var(--transition-fast);
}

.attachment-badge-chip:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-focus);
  color: var(--primary);
  transform: translateY(-1px);
}

/* Mobile Back Button */
.btn-back-to-list {
  display: none;
  align-items: center;
  gap: 0.45rem;
  background: transparent;
  border: none;
  color: var(--primary);
  font-size: 0.95rem;
  font-weight: 700;
  cursor: pointer;
  margin-bottom: 0.9rem;
}

/* ==========================================================================
   Feature Highlights & Educational Content
   ========================================================================== */
.features-grid-section {
  margin-top: 2.5rem;
  margin-bottom: 4rem;
}

.section-headline {
  text-align: center;
  margin-bottom: 2.75rem;
}

.section-headline h2 {
  font-size: 2.25rem;
  font-weight: 800;
  letter-spacing: -0.025em;
  margin-bottom: 0.6rem;
}

.section-headline p {
  color: var(--text-muted);
  font-size: 1.05rem;
}

.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.75rem;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 2rem;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  transition: all var(--transition-smooth);
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--gradient-brand);
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.feature-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-focus);
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
}

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

.feature-icon-badge {
  width: 54px;
  height: 54px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  color: white;
  margin-bottom: 1.35rem;
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.2);
}

.feature-card h3 {
  font-size: 1.25rem;
  font-weight: 800;
  margin-bottom: 0.6rem;
  letter-spacing: -0.015em;
}

.feature-card p {
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.65;
}

/* How It Works Steps */
.how-it-works-section {
  margin-bottom: 4rem;
}

.steps-container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.75rem;
  position: relative;
}

.step-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 2rem;
  position: relative;
  overflow: hidden;
  backdrop-filter: blur(20px);
}

.step-number {
  position: absolute;
  top: 1rem;
  right: 1.35rem;
  font-size: 3.5rem;
  font-weight: 900;
  color: rgba(255, 255, 255, 0.05);
  font-family: var(--font-mono);
  line-height: 1;
}

.step-card h3 {
  font-size: 1.2rem;
  font-weight: 800;
  margin-bottom: 0.6rem;
  color: var(--text-main);
}

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

/* FAQ Accordion */
.faq-section {
  margin-bottom: 4rem;
}

.faq-list {
  max-width: 860px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: all var(--transition-fast);
  backdrop-filter: blur(20px);
}

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

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.35rem 1.75rem;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-main);
  cursor: pointer;
  user-select: none;
}

.faq-icon {
  font-size: 1.35rem;
  color: var(--primary);
  transition: transform var(--transition-smooth);
}

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

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease-out;
  padding: 0 1.75rem;
}

.faq-item.active .faq-answer {
  max-height: 250px;
  padding-bottom: 1.35rem;
}

.faq-answer p {
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.65;
}

/* ==========================================================================
   Modals & Drawers
   ========================================================================== */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-smooth);
}

.modal-overlay.open {
  opacity: 1;
  pointer-events: auto;
}

.modal-dialog {
  background: var(--bg-surface);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-xl);
  padding: 2.25rem;
  max-width: 500px;
  width: 100%;
  box-shadow: var(--shadow-lg);
  transform: scale(0.92);
  transition: transform var(--transition-spring);
}

.modal-overlay.open .modal-dialog {
  transform: scale(1);
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.35rem;
}

.modal-header h3 {
  font-size: 1.35rem;
  font-weight: 800;
}

.btn-close-modal {
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-size: 1.5rem;
  cursor: pointer;
  line-height: 1;
  transition: color var(--transition-fast);
}

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

.modal-body {
  margin-bottom: 1.75rem;
}

.qr-code-canvas-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: white;
  padding: 1.75rem;
  border-radius: var(--radius-lg);
  margin-bottom: 1.25rem;
  box-shadow: var(--shadow-md);
}

.custom-email-form {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.form-group label {
  display: block;
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
}

.input-with-addon {
  display: flex;
  align-items: center;
  background: var(--bg-input);
  border: 1.5px solid var(--border-subtle);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: border-color var(--transition-fast);
}

.input-with-addon:focus-within {
  border-color: var(--border-focus);
  box-shadow: 0 0 16px rgba(0, 210, 255, 0.32);
}

.input-with-addon input {
  flex: 1;
  background: transparent;
  border: none;
  padding: 0.85rem 1.15rem;
  color: var(--text-main);
  font-family: var(--font-mono);
  font-size: 1rem;
  font-weight: 600;
  outline: none;
}

.domain-addon {
  padding: 0.85rem 1.15rem;
  background: rgba(255, 255, 255, 0.05);
  border-left: 1px solid var(--border-subtle);
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 0.92rem;
  font-weight: 600;
}

.btn-primary-block {
  width: 100%;
  background: var(--gradient-brand);
  color: white;
  border: none;
  padding: 0.95rem;
  border-radius: var(--radius-md);
  font-family: var(--font-family);
  font-size: 1.02rem;
  font-weight: 800;
  cursor: pointer;
  transition: all var(--transition-fast);
  box-shadow: 0 4px 16px rgba(0, 102, 255, 0.45);
}

.btn-primary-block:hover {
  filter: brightness(1.1);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 210, 255, 0.6);
}

/* History List inside Modal */
.inbox-history-list {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  max-height: 300px;
  overflow-y: auto;
}

.history-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.85rem 1.15rem;
  border-radius: var(--radius-md);
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.history-item:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-focus);
  transform: translateY(-1px);
}

.history-email-text {
  font-family: var(--font-mono);
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-main);
}

/* ==========================================================================
   Toast Notifications
   ========================================================================== */
.toast-container {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  z-index: 9999;
  pointer-events: none;
}

.toast {
  pointer-events: auto;
  display: flex;
  align-items: center;
  gap: 0.85rem;
  background: var(--bg-surface);
  color: var(--text-main);
  padding: 0.95rem 1.35rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-card);
  box-shadow: var(--shadow-lg);
  font-size: 0.92rem;
  font-weight: 700;
  animation: slideToastIn 0.35s cubic-bezier(0.175, 0.885, 0.32, 1.275) forwards;
  min-width: 280px;
  backdrop-filter: blur(20px);
}

.toast.success { border-left: 4px solid var(--success); }
.toast.warning { border-left: 4px solid var(--warning); }
.toast.danger { border-left: 4px solid var(--danger); }
.toast.info { border-left: 4px solid var(--primary); }

@keyframes slideToastIn {
  from { transform: translateX(120px); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}

@keyframes slideToastOut {
  from { transform: translateX(0); opacity: 1; }
  to { transform: translateX(120px); opacity: 0; }
}

/* ==========================================================================
   Footer
   ========================================================================== */
.site-footer {
  margin-top: auto;
  padding: 3rem 0 1.5rem;
  border-top: 1px solid var(--border-subtle);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.15rem;
  text-align: center;
  color: var(--text-muted);
  font-size: 0.9rem;
}

.footer-links {
  display: flex;
  gap: 1.75rem;
  list-style: none;
}

.footer-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-weight: 600;
  transition: color var(--transition-fast);
}

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

/* ==========================================================================
   Responsive Adaptations
   ========================================================================== */
@media (max-width: 900px) {
  .inbox-split-view {
    grid-template-columns: 1fr;
  }

  .email-detail-pane {
    display: none;
  }

  .inbox-split-view.show-detail .email-list-pane {
    display: none;
  }

  .inbox-split-view.show-detail .email-detail-pane {
    display: flex;
  }

  .btn-back-to-list {
    display: inline-flex;
  }
}

@media (max-width: 640px) {
  .mail-generator-card {
    padding: 1.5rem 1.25rem;
  }

  .email-display-container {
    flex-direction: column;
    gap: 0.85rem;
    align-items: stretch;
    padding: 1.15rem;
  }

  .btn-inline-copy {
    justify-content: center;
    width: 100%;
  }

  .meta-status-bar {
    flex-direction: column;
    align-items: stretch;
  }

  .actions-toolbar {
    grid-template-columns: repeat(2, 1fr);
  }

  .hero-title {
    font-size: 2rem;
  }
}

/* ==========================================================================
   State-of-the-Art Professional Site Footer
   ========================================================================== */
.site-footer {
  margin-top: 6rem;
  padding: 4.5rem 0 2rem;
  border-top: 1px solid var(--border-subtle);
  background: linear-gradient(180deg, rgba(15, 23, 42, 0.45) 0%, rgba(8, 12, 24, 0.95) 100%);
  border-radius: var(--radius-xl) var(--radius-xl) 0 0;
  position: relative;
  z-index: 10;
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
}

[data-theme="light"] .site-footer {
  background: linear-gradient(180deg, rgba(248, 250, 252, 0.7) 0%, rgba(241, 245, 249, 0.98) 100%);
  border-top-color: rgba(0, 0, 0, 0.08);
}

.footer-wrapper {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.8fr 1.15fr 1.2fr 1fr;
  gap: 3rem;
  margin-bottom: 3.5rem;
}

.footer-col {
  display: flex;
  flex-direction: column;
}

.footer-col-brand {
  gap: 1.25rem;
}

.footer-brand-link {
  display: inline-flex;
  align-items: center;
  gap: 0.85rem;
  text-decoration: none;
  color: inherit;
  transition: transform var(--transition-fast);
}

.footer-brand-link:hover {
  transform: scale(1.02);
}

.footer-bio {
  font-size: 0.92rem;
  line-height: 1.7;
  color: var(--text-muted);
  max-width: 360px;
}

.footer-trust-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-top: 0.25rem;
}

.trust-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.4rem 0.85rem;
  border-radius: var(--radius-full);
  font-size: 0.78rem;
  font-weight: 600;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-subtle);
  color: var(--text-main);
  backdrop-filter: blur(12px);
  transition: all var(--transition-fast);
}

[data-theme="light"] .trust-pill {
  background: rgba(0, 0, 0, 0.04);
}

.trust-pill:hover {
  border-color: var(--border-focus);
  box-shadow: 0 0 14px rgba(0, 210, 255, 0.25);
}

.trust-pill i {
  color: var(--primary);
  font-size: 0.95rem;
}

.footer-title {
  font-size: 0.95rem;
  font-weight: 800;
  color: var(--text-main);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 1.35rem;
  display: flex;
  align-items: center;
  gap: 0.55rem;
}

.footer-title i {
  color: var(--primary);
  font-size: 1.15rem;
}

.footer-links-list {
  list-style: none !important;
  margin: 0 !important;
  padding: 0 !important;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.footer-links-list li {
  list-style: none !important;
  margin: 0 !important;
  padding: 0 !important;
}

.footer-links-list a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.92rem;
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  transition: all var(--transition-fast);
  padding: 0.25rem 0.5rem;
  margin-left: -0.5rem;
  border-radius: var(--radius-sm);
}

.footer-links-list a i {
  font-size: 1.1rem;
  color: var(--text-subtle);
  transition: all var(--transition-fast);
}

.footer-links-list a:hover {
  color: var(--primary);
  background: rgba(0, 242, 254, 0.08);
  transform: translateX(4px);
}

.footer-links-list a:hover i {
  color: var(--primary);
  transform: scale(1.15);
}

.footer-bottom-bar {
  padding-top: 2rem;
  border-top: 1px solid var(--border-subtle);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1.25rem;
}

.footer-copy-text {
  font-size: 0.86rem;
  color: var(--text-subtle);
  margin: 0;
}

.footer-legal-inline {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  font-size: 0.86rem;
  flex-wrap: wrap;
}

.footer-legal-inline a {
  color: var(--text-subtle);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.footer-legal-inline a:hover {
  color: var(--primary);
}

.footer-legal-inline .sep {
  color: var(--border-subtle);
}

@media (max-width: 980px) {
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 2.5rem;
  }
}

@media (max-width: 600px) {
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 2.25rem;
  }
  .footer-bottom-bar {
    flex-direction: column;
    text-align: center;
    justify-content: center;
  }
}

/* ==========================================================================
   SEO Authority Guide & Comparison Table Styles
   ========================================================================== */

.seo-guide-section {
  margin-top: 4.5rem;
  margin-bottom: 2rem;
}

.seo-guide-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
  margin-top: 2rem;
}

.seo-guide-card {
  background: var(--bg-card);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-lg);
  padding: 2rem;
  transition: transform var(--transition-smooth), border-color var(--transition-smooth), box-shadow var(--transition-smooth);
}

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

.seo-card-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1rem;
}

.seo-card-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.35rem;
  color: #fff;
  flex-shrink: 0;
}

.seo-card-header h3 {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-main);
  margin: 0;
}

.seo-guide-card p {
  color: var(--text-muted);
  font-size: 0.92rem;
  line-height: 1.65;
  margin: 0;
}

/* Comparison Matrix Section */
.comparison-section {
  margin-top: 4.5rem;
  margin-bottom: 2rem;
}

.table-responsive-wrapper {
  overflow-x: auto;
  margin-top: 2rem;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-card);
  background: var(--bg-card);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: var(--shadow-sm);
}

.comparison-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.92rem;
}

.comparison-table th,
.comparison-table td {
  padding: 1.15rem 1.4rem;
  border-bottom: 1px solid var(--border-subtle);
}

.comparison-table th {
  background: rgba(0, 210, 255, 0.05);
  color: var(--text-muted);
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.comparison-table th.col-highlight {
  color: var(--primary);
  background: rgba(0, 210, 255, 0.12);
  border-left: 1px solid var(--border-card);
  border-right: 1px solid var(--border-card);
}

.comparison-table td.col-highlight {
  background: rgba(0, 210, 255, 0.03);
  font-weight: 600;
  color: var(--text-main);
  border-left: 1px solid var(--border-card);
  border-right: 1px solid var(--border-card);
}

.comparison-table tbody tr:last-child td {
  border-bottom: none;
}

.comparison-table tbody tr:hover {
  background: rgba(255, 255, 255, 0.02);
}

.check-pill-yes {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  color: #10b981;
  font-weight: 600;
}

.check-pill-no {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  color: #ef4444;
  font-weight: 500;
}

@media (max-width: 860px) {
  .seo-guide-grid {
    grid-template-columns: 1fr;
  }
}