@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700;800;900&display=swap');

:root {
  /* Brand Colors - Matching user-ui app */
  --brand-25: #F5FAFF;
  --brand-50: #EFF8FF;
  --brand-100: #D1E9FF;
  --brand-200: #B2DDFF;
  --brand-300: #84CAFF;
  --brand-400: #53B1FD;
  --brand-500: #2E90FA;
  --brand-600: #1570EF;
  --brand-700: #175CD3;
  --brand-800: #1849A9;
  --brand-900: #194185;

  /* Semantic Colors */
  --primary: var(--brand-500);
  --primary-dark: var(--brand-600);
  --primary-light: var(--brand-400);
  --success: #22C55E;
  --warning: #F59E0B;
  --error: #EF4444;

  /* Grays */
  --gray-50: #FAFAFA;
  --gray-100: #F5F5F5;
  --gray-200: #E9EAEB;
  --gray-300: #D5D7DA;
  --gray-400: #A4A7AE;
  --gray-500: #717680;
  --gray-600: #535862;
  --gray-700: #414651;
  --gray-800: #252B37;
  --gray-900: #101828;

  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;

  /* Border Radius */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 1px 2px 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);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);

  /* Container */
  --container-max: 480px;
  --nav-height: 70px;
}

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

html {
  font-size: 16px;
}

body {
  font-family: 'Outfit', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background-color: var(--brand-50);
  color: var(--gray-900);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Typography */
h1 {
  font-size: 2rem;
  font-weight: 800;
  color: var(--gray-900);
  line-height: 1.2;
}

h2 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--gray-900);
  line-height: 1.3;
}

h3 {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--gray-900);
  line-height: 1.4;
}

p {
  font-size: 1rem;
  color: var(--gray-600);
  line-height: 1.6;
}

a {
  color: var(--brand-500);
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover {
  color: var(--brand-600);
}

/* App Container - Mobile First */
.app-container {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background-color: var(--brand-50);
}

.app-content {
  flex: 1;
  padding: var(--spacing-lg);
  max-width: var(--container-max);
  margin: 0 auto;
  width: 100%;
  padding-top: calc(var(--nav-height) + var(--spacing-lg));
}

/* Navigation - Mobile App Style */
.nav {
  position: fixed;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 100%;
  max-width: var(--container-max);
  height: var(--nav-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--spacing-lg);
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--gray-100);
  z-index: 1000;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--brand-600);
}

.nav-logo svg,
.nav-logo i {
  width: 28px;
  height: 28px;
  color: var(--brand-500);
}

.nav-links {
  display: flex;
  gap: var(--spacing-md);
  list-style: none;
}

.nav-links a {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--gray-600);
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--radius-full);
  transition: all 0.2s ease;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--brand-500);
  background-color: var(--brand-50);
}

/* Cards */
.card {
  background: white;
  border-radius: var(--radius-xl);
  padding: var(--spacing-xl);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--gray-100);
  margin-bottom: var(--spacing-lg);
}

.card-header {
  margin-bottom: var(--spacing-lg);
  padding-bottom: var(--spacing-md);
  border-bottom: 1px solid var(--gray-100);
}

.card-header h2 {
  margin-bottom: var(--spacing-xs);
}

.card-header p {
  font-size: 0.875rem;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-md) var(--spacing-xl);
  border-radius: var(--radius-lg);
  font-size: 1rem;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: all 0.2s ease;
  text-decoration: none;
}

.btn-primary {
  background: var(--brand-500);
  color: white;
  box-shadow: 0 4px 14px rgba(46, 144, 250, 0.4);
}

.btn-primary:hover {
  background: var(--brand-600);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(46, 144, 250, 0.5);
}

.btn-secondary {
  background: white;
  color: var(--gray-700);
  border: 1px solid var(--gray-200);
}

.btn-secondary:hover {
  background: var(--gray-50);
  border-color: var(--gray-300);
}

.btn-danger {
  background: var(--error);
  color: white;
}

.btn-danger:hover {
  background: #DC2626;
}

.btn-sm {
  padding: var(--spacing-sm) var(--spacing-md);
  font-size: 0.875rem;
}

.btn-lg {
  padding: var(--spacing-lg) var(--spacing-2xl);
  font-size: 1.125rem;
}

/* Form Elements */
.form-group {
  margin-bottom: var(--spacing-lg);
}

.form-label {
  display: block;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--gray-700);
  margin-bottom: var(--spacing-sm);
}

.form-input {
  width: 100%;
  padding: var(--spacing-md);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-md);
  font-size: 1rem;
  font-family: inherit;
  transition: all 0.2s ease;
  background: white;
}

.form-input:focus {
  outline: none;
  border-color: var(--brand-500);
  box-shadow: 0 0 0 3px rgba(46, 144, 250, 0.1);
}

.form-input::placeholder {
  color: var(--gray-400);
}

/* Feature Items */
.feature-grid {
  display: grid;
  gap: var(--spacing-lg);
  margin: var(--spacing-xl) 0;
}

.feature-item {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-md);
  padding: var(--spacing-lg);
  background: white;
  border-radius: var(--radius-lg);
  border: 1px solid var(--gray-100);
}

.feature-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--brand-50);
  border-radius: var(--radius-md);
  color: var(--brand-500);
  font-size: 1.25rem;
  flex-shrink: 0;
}

.feature-content h3 {
  margin-bottom: var(--spacing-xs);
}

.feature-content p {
  font-size: 0.875rem;
}

/* Stats */
.stats-row {
  display: flex;
  justify-content: space-around;
  gap: var(--spacing-md);
  padding: var(--spacing-xl);
  background: var(--brand-500);
  border-radius: var(--radius-xl);
  margin: var(--spacing-xl) 0;
}

.stat-item {
  text-align: center;
  color: white;
}

.stat-value {
  font-size: 2rem;
  font-weight: 800;
  display: block;
}

.stat-label {
  font-size: 0.875rem;
  opacity: 0.9;
}

/* Footer */
.footer {
  background: white;
  padding: var(--spacing-xl);
  margin-top: var(--spacing-2xl);
  border-top: 1px solid var(--gray-100);
}

.footer-content {
  max-width: var(--container-max);
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
  text-align: center;
}

.footer-brand {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--brand-600);
}

.footer-brand svg,
.footer-brand i {
  color: var(--brand-500);
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: var(--spacing-lg);
  flex-wrap: wrap;
}

.footer-links a {
  color: var(--gray-500);
  font-size: 0.875rem;
}

.footer-copyright {
  font-size: 0.75rem;
  color: var(--gray-400);
}

/* Hero Section */
.hero {
  text-align: center;
  padding: var(--spacing-2xl) 0;
}

.hero-badge {
  display: inline-block;
  padding: var(--spacing-xs) var(--spacing-md);
  background: var(--brand-100);
  color: var(--brand-700);
  font-size: 0.75rem;
  font-weight: 600;
  border-radius: var(--radius-full);
  margin-bottom: var(--spacing-md);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.hero h1 {
  margin-bottom: var(--spacing-md);
}

.hero p {
  margin-bottom: var(--spacing-xl);
  max-width: 100%;
}

.hero-actions {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  align-items: center;
}

/* Section Headers */
.section-header {
  margin-bottom: var(--spacing-xl);
  text-align: center;
}

.section-header h2 {
  margin-bottom: var(--spacing-sm);
}

.section-header p {
  font-size: 0.875rem;
}

/* Alert/Banner */
.alert {
  padding: var(--spacing-md);
  border-radius: var(--radius-md);
  margin-bottom: var(--spacing-lg);
}

.alert-info {
  background: var(--brand-50);
  border: 1px solid var(--brand-100);
  color: var(--brand-700);
}

.alert-warning {
  background: #FFFBEB;
  border: 1px solid #FDE68A;
  color: #B45309;
}

.alert-danger {
  background: #FEF2F2;
  border: 1px solid #FECACA;
  color: #B91C1C;
}

.alert-success {
  background: #F0FDF4;
  border: 1px solid #BBF7D0;
  color: #15803D;
}

/* Icon styles */
.icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.icon-sm { font-size: 1rem; }
.icon-md { font-size: 1.25rem; }
.icon-lg { font-size: 1.5rem; }
.icon-xl { font-size: 2rem; }

/* Utility Classes */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }
.mt-xl { margin-top: var(--spacing-xl); }

.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }
.mb-xl { margin-bottom: var(--spacing-xl); }

.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.gap-sm { gap: var(--spacing-sm); }
.gap-md { gap: var(--spacing-md); }
.gap-lg { gap: var(--spacing-lg); }

/* Responsive */
@media (min-width: 768px) {
  :root {
    --container-max: 700px;
  }

  h1 {
    font-size: 2.5rem;
  }

  .hero-actions {
    flex-direction: row;
  }

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

  .footer-content {
    flex-direction: row;
    justify-content: space-between;
    text-align: left;
  }
}

@media (min-width: 1024px) {
  :root {
    --container-max: 800px;
  }

  .feature-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* Animations */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.animate-fade-in {
  animation: fadeIn 0.5s ease forwards;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

.animate-pulse {
  animation: pulse 2s ease-in-out infinite;
}

/* Back Link */
.back-link {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  color: var(--brand-500);
  font-weight: 500;
  margin-bottom: var(--spacing-lg);
  transition: opacity 0.2s;
}

.back-link:hover {
  opacity: 0.8;
}

/* Policy Page Specific */
.policy-content {
  background: white;
  border-radius: var(--radius-xl);
  padding: var(--spacing-xl);
  box-shadow: var(--shadow-md);
}

.policy-content h1 {
  margin-bottom: var(--spacing-md);
}

.policy-content h2 {
  margin-top: var(--spacing-xl);
  margin-bottom: var(--spacing-md);
  font-size: 1.25rem;
}

.policy-content p,
.policy-content li {
  color: var(--gray-600);
  margin-bottom: var(--spacing-md);
  line-height: 1.7;
}

.policy-content ul {
  padding-left: var(--spacing-xl);
  margin-bottom: var(--spacing-lg);
}

/* Download Page Specific */
.download-container {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-lg);
  background: linear-gradient(180deg, var(--brand-50) 0%, white 100%);
}

.download-card {
  background: white;
  border-radius: var(--radius-xl);
  padding: var(--spacing-2xl);
  box-shadow: var(--shadow-xl);
  text-align: center;
  max-width: 400px;
  width: 100%;
}

.download-options {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  margin-top: var(--spacing-xl);
}

.download-option {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  padding: var(--spacing-lg);
  background: white;
  border: 2px solid var(--gray-200);
  border-radius: var(--radius-lg);
  text-decoration: none;
  color: var(--gray-900);
  transition: all 0.2s ease;
}

.download-option:hover {
  border-color: var(--brand-300);
  transform: translateX(4px);
  box-shadow: var(--shadow-md);
}

.download-option.android:hover {
  border-color: #3DDC84;
}

.download-option.ios:hover {
  border-color: var(--brand-500);
}

.download-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  font-size: 1.5rem;
  color: white;
}

.download-icon.android {
  background: linear-gradient(135deg, #3DDC84 0%, #2AA852 100%);
}

.download-icon.ios {
  background: linear-gradient(135deg, var(--brand-500) 0%, var(--brand-600) 100%);
}

.download-info {
  text-align: left;
  flex: 1;
}

.download-info h3 {
  font-size: 1rem;
  margin-bottom: 2px;
}

.download-info p {
  font-size: 0.75rem;
  color: var(--gray-500);
}

/* Success Page */
.success-container {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-lg);
}

.success-card {
  background: white;
  border-radius: var(--radius-xl);
  padding: var(--spacing-2xl);
  box-shadow: var(--shadow-xl);
  text-align: center;
  max-width: 400px;
  width: 100%;
}

.success-icon {
  font-size: 4rem;
  color: var(--success);
  margin-bottom: var(--spacing-lg);
}

/* Delete Account Page */
.delete-container {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-lg);
  background: var(--brand-50);
}

.delete-card {
  background: white;
  border-radius: var(--radius-xl);
  padding: var(--spacing-2xl);
  box-shadow: var(--shadow-xl);
  max-width: 450px;
  width: 100%;
}

.warning-icon {
  font-size: 3rem;
  color: var(--error);
  margin-bottom: var(--spacing-lg);
  display: block;
  text-align: center;
}

.delete-card h1 {
  text-align: center;
  margin-bottom: var(--spacing-md);
}

.delete-card p {
  text-align: center;
  margin-bottom: var(--spacing-xl);
}

.delete-card .form-group {
  margin-bottom: var(--spacing-lg);
}

.delete-card .btn-danger {
  width: 100%;
  margin-top: var(--spacing-md);
}