:root {
  --primary-color: #4f46e5;
  --primary-hover: #4338ca;
  --secondary-color: #64748b;
  --success-color: #10b981;
  --error-color: #ef4444;
  --warning-color: #f59e0b;
  --background: #f8fafc;
  --card-background: #ffffff;
  --text-primary: #1e293b;
  --text-secondary: #64748b;
  --border-color: #e2e8f0;
  --shadow: 0 1px 3px 0 rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1);
}

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

body {
  font-family: 'Lexend', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--background);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Navbar */
.navbar {
  background: linear-gradient(135deg, #20033E 0%, #7c3aed 100%);
  border-bottom: none;
  padding: 1.5rem 0;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.nav-logo {
  height: 38px;
  width: auto;
}

.nav-brand h1 {
  font-size: 1.5rem;
  color: white;
  font-weight: 600;
}

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

.nav-link {
  text-decoration: none;
  color: rgba(255, 255, 255, 0.9);
  font-weight: 500;
  transition: color 0.2s;
}

.nav-link:hover,
.nav-link.active {
  color: white;
}

.nav-user {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.user-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--border-color);
}

.user-name {
  color: white;
  font-weight: 500;
}

/* Main Content */
.main-content {
  flex: 1;
  max-width: 1200px;
  width: 100%;
  margin: 0 auto;
  padding: 2rem;
}

/* Alerts */
.alert {
  padding: 1rem;
  border-radius: 0.5rem;
  margin-bottom: 1.5rem;
}

.alert-success {
  background: #d1fae5;
  color: #065f46;
  border: 1px solid #6ee7b7;
}

.alert-error {
  background: #fee2e2;
  color: #991b1b;
  border: 1px solid #fca5a5;
}

/* Dashboard */
.dashboard-header {
  margin-bottom: 2rem;
}

.dashboard-header h2 {
  font-size: 2rem;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}

.dashboard-header p {
  color: var(--text-secondary);
  font-size: 1.1rem;
}

/* Tools Grid */
.tools-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1.5rem;
}

.tool-card {
  background: var(--card-background);
  border: 1px solid var(--border-color);
  border-radius: 0.75rem;
  padding: 1.5rem;
  box-shadow: var(--shadow);
  transition: transform 0.2s, box-shadow 0.2s;
  position: relative;
  display: flex;
  flex-direction: column;
}

.tool-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.tool-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
}

.tool-name {
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}

.tool-category {
  color: var(--primary-color);
  font-size: 0.875rem;
  font-weight: 600;
  text-transform: uppercase;
  margin-bottom: 0.75rem;
}

.tool-description {
  color: var(--text-secondary);
  margin-bottom: 1rem;
  flex-grow: 1;
}

.tool-features {
  margin-bottom: 1rem;
}

.tool-features ul {
  list-style: none;
}

.tool-features li::before {
  content: "✓ ";
  color: var(--success-color);
  font-weight: bold;
}

.tool-features li {
  color: var(--text-secondary);
  font-size: 0.875rem;
  margin-bottom: 0.25rem;
}

.tool-actions {
  display: flex;
  gap: 0.5rem;
}

.tool-status-badge {
  position: absolute;
  top: 1rem;
  right: 1rem;
  padding: 0.25rem 0.75rem;
  border-radius: 9999px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
}

.badge-beta {
  background: #dbeafe;
  color: #1e40af;
}

.badge-maintenance {
  background: #fef3c7;
  color: #92400e;
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 0.625rem 1.25rem;
  border: none;
  border-radius: 0.5rem;
  font-weight: 500;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.2s;
  text-align: center;
}

.btn-primary {
  background: #4f46e5;
  color: white;
  transition: transform 0.2s, box-shadow 0.2s;
}

.btn-primary:hover {
  background: #7c3aed;
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(79, 70, 229, 0.4);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.2);
  color: white;
  border: 1px solid rgba(255, 255, 255, 0.3);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.3);
  border-color: rgba(255, 255, 255, 0.5);
}

.btn-block {
  width: 100%;
}

.btn-sm {
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
}

.btn-lg {
  padding: 0.875rem 1.75rem;
  font-size: 1.125rem;
}

/* Login Page */
.login-page {
  background: linear-gradient(135deg, #20033E 0%, #7c3aed 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
}

.login-container {
  width: 100%;
  max-width: 400px;
  padding: 2rem;
}

.login-box {
  background: white;
  border-radius: 16px;
  padding: 2rem;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.login-header {
  text-align: center;
  margin-bottom: 2rem;
}

.login-logo {
  display: flex;
  justify-content: center;
}

.login-header h1 {
  font-size: 2rem;
  color: #20033E;
  margin-bottom: 0.5rem;
  font-weight: 600;
}

.login-header p {
  color: var(--text-secondary);
  font-weight: 300;
}

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

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

.form-group label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 600;
  color: #333;
  font-size: 14px;
}

.form-group input {
  width: 100%;
  padding: 0.75rem;
  border: 2px solid #e1e4e8;
  border-radius: 8px;
  font-size: 14px;
  font-family: 'Lexend', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  transition: border-color 0.3s;
}

.form-group input:focus {
  outline: none;
  border-color: #4f46e5;
}

/* Google Sign-In Button */
.google-signin-container {
  margin: 2rem 0;
}

.btn-google {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  width: 100%;
  padding: 0.875rem 1.5rem;
  background: #4f46e5;
  color: white;
  border: none;
  border-radius: 0.5rem;
  font-size: 1rem;
  font-weight: 600;
  font-family: 'Lexend', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  text-decoration: none;
  transition: transform 0.2s, box-shadow 0.2s;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
  cursor: pointer;
}

.btn-google:hover {
  background: #7c3aed;
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(79, 70, 229, 0.4);
}

.btn-google:active {
  transform: scale(0.98);
}

.google-icon {
  width: 24px;
  height: 24px;
  flex-shrink: 0;
}

.google-icon path {
  fill: white;
}

.login-footer {
  text-align: center;
  padding-top: 1rem;
  border-top: 1px solid var(--border-color);
}

.domain-info {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.8;
}

.domain-info code {
  background: var(--background);
  padding: 0.125rem 0.375rem;
  border-radius: 0.25rem;
  font-family: 'Courier New', monospace;
  color: var(--primary-color);
}

/* Tool Detail Page */
.tool-detail {
  background: var(--card-background);
  border-radius: 1rem;
  padding: 2rem;
  box-shadow: var(--shadow);
}

.breadcrumb {
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
  font-size: 0.875rem;
}

.breadcrumb a {
  color: var(--primary-color);
  text-decoration: none;
}

.breadcrumb a:hover {
  text-decoration: underline;
}

.tool-detail-header {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  margin-bottom: 2rem;
  padding-bottom: 2rem;
  border-bottom: 1px solid var(--border-color);
}

.tool-icon-large {
  font-size: 4rem;
}

.tool-detail-header h2 {
  font-size: 2rem;
  margin-bottom: 0.5rem;
}

.detail-section {
  margin-bottom: 2rem;
}

.detail-section h3 {
  font-size: 1.25rem;
  margin-bottom: 1rem;
  color: var(--text-primary);
}

.features-list {
  list-style: none;
  padding-left: 0;
}

.features-list li {
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--border-color);
}

.features-list li::before {
  content: "✓ ";
  color: var(--success-color);
  font-weight: bold;
  margin-right: 0.5rem;
}

.tool-detail-actions {
  margin-top: 2rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border-color);
}

/* Error Page */
.error-container {
  text-align: center;
  padding: 4rem 2rem;
}

.error-container h1 {
  font-size: 3rem;
  color: var(--error-color);
  margin-bottom: 1rem;
}

.error-message {
  font-size: 1.25rem;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}

.error-details {
  color: var(--text-secondary);
  margin-bottom: 2rem;
}

/* Footer */
.footer {
  background: var(--card-background);
  border-top: 1px solid var(--border-color);
  padding: 2rem;
  text-align: center;
  color: var(--text-secondary);
  margin-top: auto;
}

/* Empty State */
.empty-state {
  grid-column: 1 / -1;
  text-align: center;
  padding: 4rem 2rem;
  color: var(--text-secondary);
}

/* Responsive */
@media (max-width: 768px) {
  .nav-container {
    flex-direction: column;
    gap: 1rem;
  }

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

  .tool-detail-header {
    flex-direction: column;
    text-align: center;
  }

  .tool-actions {
    flex-direction: column;
  }
}