/* Base Styles & Reset */
:root {
  /* Colors - Dark theme by default */
  --primary: #818cf8;
  --primary-light: #a5b4fc;
  --primary-dark: #6366f1;
  --secondary: #1e293b;
  --accent-blue: #3b82f6;
  --accent-green: #10b981;
  --accent-purple: #8b5cf6;
  --text-primary: #f8fafc;
  --text-secondary: #cbd5e1;
  --text-tertiary: #94a3b8;
  --background: #0f172a;
  --card-bg: #1e293b;
  --border-color: #334155;
  --glass-bg: rgba(30, 41, 59, 0.7);
  --glass-border: rgba(255, 255, 255, 0.1);
  --glass-shadow: rgba(0, 0, 0, 0.1);

  /* Typography */
  --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
  --font-display: 'Nunito', var(--font-sans);

  /* Spacing */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-12: 3rem;
  --space-16: 4rem;

  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);

  /* Radius */
  --radius-sm: 0.25rem;
  --radius-md: 0.5rem;
  --radius-lg: 1rem;
  --radius-full: 9999px;

  /* Animation */
  --transition-fast: 0.2s;
  --transition-medium: 0.3s;
  --transition-slow: 0.5s;
  --easing: cubic-bezier(0.25, 0.1, 0.25, 1);
}

/* Light mode - Soft and easy on eyes */
.light-mode {
  --primary: #6366f1;
  --primary-light: #818cf8;
  --primary-dark: #4f46e5;
  --secondary: #f1f5f9;
  --text-primary: #1e293b;
  --text-secondary: #475569;
  --text-tertiary: #64748b;
  --background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
  --card-bg: #ffffff;
  --border-color: #e2e8f0;
  --glass-bg: rgba(248, 250, 252, 0.8);
  --glass-border: rgba(226, 232, 240, 0.3);
  --glass-shadow: rgba(0, 0, 0, 0.08);
}

/* Light mode body background with subtle pattern */
.light-mode {
  background:
    radial-gradient(circle at 25% 25%, rgba(99, 102, 241, 0.03) 0%, transparent 50%),
    radial-gradient(circle at 75% 75%, rgba(59, 130, 246, 0.03) 0%, transparent 50%),
    linear-gradient(135deg, #f8fafc 0%, #e2e8f0 50%, #f1f5f9 100%);
  background-attachment: fixed;
  background-size: 800px 800px, 600px 600px, 100% 100%;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html,
body {
  height: 100%;
  scroll-behavior: smooth;
  font-family: var(--font-sans);
  color: var(--text-primary);
  background-color: var(--background);
  line-height: 1.5;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  transition: background-color var(--transition-medium) var(--easing),
    color var(--transition-medium) var(--easing);
}

.app-container {
  min-height: 100%;
  display: flex;
  flex-direction: column;
  position: relative;
  overflow-x: hidden;
}

/* Container */
.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--space-4);
}

@media screen and (min-width: 768px) {
  .container {
    padding: 0 var(--space-8);
  }
}

/* Typography */
h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: var(--space-4);
}

h1 {
  font-size: 2.5rem;
}

h2 {
  font-size: 2rem;
}

h3 {
  font-size: 1.5rem;
  margin-bottom: var(--space-2);
}

p {
  margin-bottom: var(--space-4);
}

@media screen and (min-width: 768px) {
  h1 {
    font-size: 3.5rem;
  }

  h2 {
    font-size: 2.5rem;
  }

  h3 {
    font-size: 1.75rem;
  }
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background-color: var(--primary);
  color: white;
  font-weight: 600;
  font-size: 0.875rem;
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-md);
  border: none;
  cursor: pointer;
  transition: transform var(--transition-fast) var(--easing),
    background-color var(--transition-fast) var(--easing),
    box-shadow var(--transition-fast) var(--easing);
  text-decoration: none;
  box-shadow: var(--shadow-sm);
  height: 2.5rem;
}

.btn:hover {
  background-color: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn:active {
  transform: translateY(0);
}

.btn-lg {
  font-size: 1rem;
  padding: var(--space-3) var(--space-6);
  height: 3rem;
  border-radius: var(--radius-lg);
}

.btn-primary {
  background-color: var(--primary);
}

.btn-secondary {
  background-color: transparent;
  border: 1px solid var(--primary);
  color: var(--primary);
}

.btn-secondary:hover {
  background-color: var(--primary);
  color: white;
}

.icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  color: var(--text-secondary);
  font-size: 1.25rem;
  padding: var(--space-1);
  border-radius: var(--radius-full);
  border: none;
  cursor: pointer;
  transition: all var(--transition-fast) var(--easing);
  width: 2rem;
  height: 2rem;
}

.icon-btn:hover {
  background-color: rgba(0, 0, 0, 0.05);
  color: var(--text-primary);
}

.light-mode .icon-btn:hover {
  background-color: rgba(99, 102, 241, 0.1);
}

/* Header */
.header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4) var(--space-4);
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 50;
  background-color: transparent;
  transition: all var(--transition-medium) var(--easing);
}

.header.scrolled {
  background-color: var(--glass-bg);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--glass-border);
  box-shadow: 0 4px 30px var(--glass-shadow);
}

.logo {
  display: flex;
  align-items: center;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.5rem;
  color: var(--primary);
  position: relative;
}

.logo-text {
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent-blue) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: pulse 3s infinite alternate;
}

.logo-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--accent-purple);
  margin-left: 3px;
  position: relative;
  top: -8px;
}

/* Desktop Navigation */
.desktop-nav {
  display: none;
}

.desktop-nav ul {
  display: flex;
  list-style: none;
  gap: var(--space-6);
}

.desktop-nav a {
  color: var(--text-primary);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.9375rem;
  transition: color var(--transition-fast) var(--easing);
  position: relative;
}

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

.desktop-nav a::after {
  content: '';
  position: absolute;
  width: 100%;
  height: 2px;
  bottom: -5px;
  left: 0;
  background-color: var(--primary);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform var(--transition-medium) var(--easing);
}

.desktop-nav a:hover::after,
.desktop-nav a.active::after {
  transform: scaleX(1);
  transform-origin: left;
}

.desktop-nav a.active {
  color: var(--primary);
  font-weight: 600;
}

.nav-wrapper {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.theme-toggle {
  font-size: 1.25rem;
}

.menu-button {
  display: flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: none;
  color: var(--text-primary);
  font-size: 1.75rem;
  cursor: pointer;
}

.menu-button:hover {
  color: var(--primary);
}

@media screen and (min-width: 768px) {
  .header {
    padding: var(--space-6) var(--space-8);
  }

  .desktop-nav {
    display: block;
  }

  .menu-button {
    display: none;
  }

  .theme-toggle {
    display: flex;
  }
}

@media screen and (max-width: 767px) {
  .theme-toggle {
    display: flex;
  }
}

/* Mobile Navigation */
.mobile-nav {
  position: fixed;
  top: 0;
  right: -100%;
  width: 85%;
  max-width: 400px;
  height: 100vh;
  background-color: var(--glass-bg);
  backdrop-filter: blur(10px);
  z-index: 100;
  display: flex;
  flex-direction: column;
  transition: right var(--transition-medium) var(--easing);
  border-left: 1px solid var(--glass-border);
}

.mobile-nav.active {
  right: 0;
}

.mobile-nav-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.5);
  z-index: 99;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-medium) var(--easing);
}

.mobile-nav-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

.mobile-nav-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-6);
  border-bottom: 1px solid var(--border-color);
}

.close-menu {
  background: transparent;
  border: none;
  color: var(--text-primary);
  font-size: 1.75rem;
  cursor: pointer;
}

.mobile-nav nav {
  flex-grow: 1;
  padding: var(--space-6);
  overflow-y: auto;
}

.mobile-nav ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.mobile-nav li {
  animation: slideInRight var(--transition-medium) forwards;
  opacity: 0;
  transform: translateX(20px);
}

.mobile-nav li:nth-child(1) {
  animation-delay: 0.1s;
}

.mobile-nav li:nth-child(2) {
  animation-delay: 0.2s;
}

.mobile-nav li:nth-child(3) {
  animation-delay: 0.3s;
}

.mobile-nav li:nth-child(4) {
  animation-delay: 0.4s;
}

.mobile-nav a {
  display: block;
  font-size: 1.25rem;
  color: var(--text-primary);
  text-decoration: none;
  font-weight: 500;
  padding: var(--space-2) 0;
  transition: color var(--transition-fast) var(--easing);
}

.mobile-nav a:hover,
.mobile-nav a.active {
  color: var(--primary);
}

.mobile-nav-footer {
  padding: var(--space-6);
  border-top: 1px solid var(--border-color);
}

.mobile-nav-footer .btn {
  width: 100%;
}

/* Hero Section */
.hero {
  padding-top: 120px;
  padding-bottom: var(--space-16);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero-badge {
  display: inline-block;
  background-color: rgba(99, 102, 241, 0.1);
  color: var(--primary);
  font-weight: 600;
  font-size: 0.875rem;
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-full);
  margin-bottom: var(--space-6);
  animation: fadeInUp 0.8s var(--easing) both;
  animation-delay: 0.2s;
}

.hero-title {
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
  animation: fadeInUp 0.8s var(--easing) both;
  animation-delay: 0.4s;
}

.hero-title span {
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent-blue) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  color: var(--text-secondary);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
  margin-bottom: var(--space-8);
  font-size: 1.125rem;
  animation: fadeInUp 0.8s var(--easing) both;
  animation-delay: 0.6s;
}

.hero-bg-element {
  position: absolute;
  border-radius: 50%;
  z-index: -1;
  opacity: 0.2;
}

.hero-bg-1 {
  width: 500px;
  height: 500px;
  background: linear-gradient(45deg, var(--primary-light), var(--accent-blue));
  top: -100px;
  right: -200px;
  filter: blur(80px);
  animation: float 8s ease-in-out infinite alternate;
}

.hero-bg-2 {
  width: 400px;
  height: 400px;
  background: linear-gradient(45deg, var(--accent-purple), var(--primary));
  bottom: -100px;
  left: -200px;
  filter: blur(60px);
  animation: float 10s ease-in-out infinite alternate-reverse;
}

/* Light mode background elements */
.light-mode .hero-bg-1 {
  background: linear-gradient(45deg, rgba(99, 102, 241, 0.1), rgba(59, 130, 246, 0.1));
  filter: blur(100px);
}

.light-mode .hero-bg-2 {
  background: linear-gradient(45deg, rgba(139, 92, 246, 0.1), rgba(99, 102, 241, 0.1));
  filter: blur(80px);
}

/* Email Box Section */
.email-box {
  margin-top: var(--space-12);
  animation: fadeInUp 0.8s var(--easing) both;
  animation-delay: 0.8s;
}

.email-address-container {
  margin-bottom: var(--space-8);
}

.email-address-container h2 {
  font-size: 1.25rem;
  margin-bottom: var(--space-4);
}

.email-address-card {
  background-color: var(--card-bg);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border-color);
  margin: 0 auto;
  max-width: 640px;
  transition: transform var(--transition-medium) var(--easing),
    box-shadow var(--transition-medium) var(--easing);
}

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

.light-mode .email-address-card {
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
}

.light-mode .email-address-card:hover {
  box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

.email-address-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-3) var(--space-4);
  border-bottom: 1px solid var(--border-color);
  background-color: rgba(0, 0, 0, 0.02);
}

.light-mode .email-address-header {
  background-color: rgba(100, 116, 139, 0.05);
  border-bottom: 1px solid #e2e8f0;
}

.email-address-header span {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
}

.email-address-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-4) var(--space-6);
}

.email-text {
  font-family: monospace;
  font-size: 1rem;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* Inbox Container */
.inbox-container {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4);
  max-width: 960px;
  margin: 0 auto;
  height: 500px;
}

.inbox-left,
.inbox-right {
  background-color: var(--card-bg);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  height: 100%;
}

.inbox-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-3) var(--space-4);
  border-bottom: 1px solid var(--border-color);
  background-color: rgba(0, 0, 0, 0.02);
}

.light-mode .inbox-header {
  background-color: rgba(100, 116, 139, 0.05);
  border-bottom: 1px solid #e2e8f0;
}

.inbox-header h3 {
  font-size: 1rem;
  margin-bottom: 0;
}

.inbox-controls {
  display: flex;
  gap: var(--space-2);
}

.icon-btn.active {
  background-color: var(--primary);
  color: white;
}

.icon-btn.active:hover {
  background-color: var(--primary-dark);
}

.email-list {
  flex-grow: 1;
  overflow-y: auto;
  padding: var(--space-2);
}

.email-item {
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-2);
  cursor: pointer;
  transition: background-color var(--transition-fast) var(--easing);
  animation: fadeIn 0.5s var(--easing) forwards;
  opacity: 0;
}

.email-item:hover {
  background-color: rgba(0, 0, 0, 0.03);
}

.light-mode .email-item:hover {
  background-color: rgba(99, 102, 241, 0.05);
}

.email-item.selected {
  background-color: rgba(99, 102, 241, 0.1);
  border-left: 3px solid var(--primary);
}

.email-item-header {
  display: flex;
  justify-content: space-between;
  margin-bottom: var(--space-1);
}

.email-item-from {
  font-weight: 600;
  font-size: 0.9375rem;
}

.email-item-time {
  font-size: 0.75rem;
  color: var(--text-tertiary);
}

.email-item-subject {
  font-size: 0.875rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  margin-bottom: var(--space-1);
}

.email-item-preview {
  font-size: 0.8125rem;
  color: var(--text-secondary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.email-content {
  flex-grow: 1;
  overflow-y: auto;
  padding: var(--space-6);
}

.email-content-header {
  margin-bottom: var(--space-6);
}

.email-content-subject {
  font-size: 1.25rem;
  margin-bottom: var(--space-2);
}

.email-content-meta {
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin-bottom: var(--space-2);
}

.email-content-meta strong {
  color: var(--text-primary);
}

.email-content-body {
  line-height: 1.6;
}

.email-content-wrapper {
  background-color: var(--card-bg);
  color: var(--text-primary);
  padding: var(--space-4);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  overflow-x: auto;
}

/* Override any styles from email content that might conflict with theme */
.email-content-wrapper * {
  color: inherit !important;
  background-color: transparent !important;
}

.email-content-wrapper a {
  color: var(--primary) !important;
  text-decoration: underline;
}

.email-content-wrapper table {
  border-collapse: collapse;
  width: 100%;
  margin: var(--space-2) 0;
}

.email-content-wrapper td,
.email-content-wrapper th {
  border: 1px solid var(--border-color);
  padding: var(--space-2);
  text-align: left;
}

.email-content-wrapper img {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-sm);
}

.light-mode .email-content-wrapper {
  background-color: #ffffff;
  border: 1px solid #e2e8f0;
  box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
}

.light-mode .email-content-wrapper td,
.light-mode .email-content-wrapper th {
  border: 1px solid #e2e8f0;
}

.back-btn {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-4);
  background-color: transparent;
  border: none;
  border-top: 1px solid var(--border-color);
  width: 100%;
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  color: var(--text-secondary);
  transition: background-color var(--transition-fast) var(--easing);
}

.back-btn:hover {
  background-color: rgba(0, 0, 0, 0.03);
  color: var(--text-primary);
}

.light-mode .back-btn:hover {
  background-color: rgba(99, 102, 241, 0.05);
}

.empty-inbox,
.no-email-selected {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100%;
  padding: var(--space-4);
  text-align: center;
  color: var(--text-tertiary);
}

.empty-inbox i,
.no-email-selected i {
  font-size: 2.5rem;
  margin-bottom: var(--space-4);
  opacity: 0.5;
}

.empty-inbox p,
.no-email-selected p {
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: var(--space-2);
}

.empty-inbox span,
.no-email-selected span {
  font-size: 0.875rem;
}

/* Mobile-specific styles for the inbox */
@media screen and (max-width: 767px) {
  .inbox-right {
    display: none;
  }

  .inbox-right.active {
    display: flex;
  }

  .inbox-left.hidden-mobile {
    display: none;
  }
}

@media screen and (min-width: 768px) {
  .inbox-container {
    grid-template-columns: 1fr 1.5fr;
  }

  .back-btn {
    display: none;
  }
}

/* Features Section */
.features {
  padding: var(--space-16) 0;
  background-color: var(--secondary);
  transition: background-color var(--transition-medium) var(--easing);
}

.section-title {
  text-align: center;
  margin-bottom: var(--space-12);
}

.features-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
}

.feature-card {
  background-color: var(--card-bg);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border-color);
  transition: transform var(--transition-medium) var(--easing),
    box-shadow var(--transition-medium) var(--easing);
  position: relative;
  overflow: hidden;
}

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

.light-mode .feature-card {
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
}

.light-mode .feature-card:hover {
  box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

.feature-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 3rem;
  height: 3rem;
  border-radius: var(--radius-md);
  margin-bottom: var(--space-4);
  font-size: 1.5rem;
  color: white;
}

.feature-icon.blue {
  background-color: var(--accent-blue);
}

.feature-icon.green {
  background-color: var(--accent-green);
}

.feature-icon.purple {
  background-color: var(--accent-purple);
}

.feature-card h3 {
  margin-bottom: var(--space-2);
  font-size: 1.25rem;
}

.feature-card p {
  color: var(--text-secondary);
  margin-bottom: 0;
}

@media screen and (min-width: 768px) {
  .features-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* How It Works Section */
.how-it-works {
  padding: var(--space-16) 0;
}

.section-subtitle {
  text-align: center;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto var(--space-12) auto;
  font-size: 1.125rem;
}

.steps-container {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
  margin-bottom: var(--space-12);
}

.step-card {
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  position: relative;
  transition: transform var(--transition-medium) var(--easing),
    border-color var(--transition-medium) var(--easing);
}

.step-card:hover {
  transform: translateY(-3px);
  border-color: var(--primary);
}

.step-number {
  position: absolute;
  top: var(--space-4);
  right: var(--space-4);
  font-size: 2.5rem;
  font-weight: 800;
  color: rgba(99, 102, 241, 0.1);
  line-height: 1;
}

.step-card h3 {
  margin-bottom: var(--space-2);
  font-size: 1.25rem;
}

.step-card p {
  color: var(--text-secondary);
  margin-bottom: 0;
}

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

@media screen and (min-width: 768px) {
  .steps-container {
    grid-template-columns: repeat(4, 1fr);
  }
}

/* Footer */
.footer {
  background-color: var(--secondary);
  padding: var(--space-12) 0 var(--space-4) 0;
  margin-top: auto;
  transition: background-color var(--transition-medium) var(--easing);
}

.footer-content {
  display: flex;
  flex-direction: column;
  gap: var(--space-8);
  margin-bottom: var(--space-8);
}

.footer-logo {
  display: flex;
  align-items: center;
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-8);
}

.footer-links-column h4 {
  font-size: 1rem;
  margin-bottom: var(--space-4);
}

.footer-links-column ul {
  list-style: none;
}

.footer-links-column ul li {
  margin-bottom: var(--space-2);
}

.footer-links-column a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.9375rem;
  transition: color var(--transition-fast) var(--easing);
}

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

.social-links {
  display: flex;
  gap: var(--space-4);
}

.social-links a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: var(--radius-full);
  background-color: rgba(0, 0, 0, 0.05);
  color: var(--text-primary);
  transition: all var(--transition-fast) var(--easing);
  font-size: 1.25rem;
}

.light-mode .social-links a {
  background-color: rgba(100, 116, 139, 0.1);
}

.light-mode .social-links a:hover {
  background-color: var(--primary);
  color: white;
}

.social-links a:hover {
  background-color: var(--primary);
  color: white;
  transform: translateY(-3px);
}

.footer-bottom {
  text-align: center;
  padding-top: var(--space-6);
  border-top: 1px solid var(--border-color);
  color: var(--text-tertiary);
  font-size: 0.875rem;
}

@media screen and (min-width: 768px) {
  .footer-content {
    flex-direction: row;
    justify-content: space-between;
  }

  .footer-links {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-16);
  }
}

/* Toast Notification */
.toast {
  position: fixed;
  bottom: -100px;
  left: 50%;
  transform: translateX(-50%);
  background-color: var(--card-bg);
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border-color);
  z-index: 1000;
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: 0.9375rem;
  transition: bottom var(--transition-medium) var(--easing);
}

.toast.show {
  bottom: var(--space-6);
}

.toast i {
  color: var(--accent-green);
  font-size: 1.25rem;
}

/* Animations */
@keyframes fadeIn {
  0% {
    opacity: 0;
  }

  100% {
    opacity: 1;
  }
}

@keyframes fadeInUp {
  0% {
    opacity: 0;
    transform: translateY(20px);
  }

  100% {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideInRight {
  0% {
    opacity: 0;
    transform: translateX(20px);
  }

  100% {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes pulse {
  0% {
    opacity: 1;
  }

  50% {
    opacity: 0.8;
  }

  100% {
    opacity: 1;
  }
}

@keyframes float {
  0% {
    transform: translateY(0);
  }

  100% {
    transform: translateY(-20px);
  }
}

/* For Desktop Animation */
.animate-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s var(--easing), transform 0.8s var(--easing);
}

.animate-on-scroll.visible {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}