/* Base Styles */

html {
  font-size: 16px;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-dark);
  color: var(--text-primary);
  min-height: 100vh;
  min-height: 100dvh;
  overflow-x: hidden;
}

#app {
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
}

/* Typography */

h1, h2, h3, h4, h5, h6 {
  font-weight: var(--font-bold);
  line-height: var(--leading-tight);
  color: var(--text-primary);
}

h1 {
  font-size: var(--text-3xl);
}

h2 {
  font-size: var(--text-2xl);
}

h3 {
  font-size: var(--text-xl);
}

h4 {
  font-size: var(--text-lg);
}

p {
  color: var(--text-secondary);
  line-height: var(--leading-relaxed);
}

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

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

small {
  font-size: var(--text-sm);
  color: var(--text-muted);
}

strong {
  font-weight: var(--font-semibold);
}

/* Loading Screen */

.loading-screen {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--bg-dark);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-lg);
  z-index: var(--z-modal);
  transition: opacity var(--transition-slow);
}

.loading-screen.hidden {
  opacity: 0;
  pointer-events: none;
}

.loading-logo {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-sm);
}

.loading-logo .logo-icon {
  font-size: 4rem;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: pulse 2s ease-in-out infinite;
}

.loading-logo .logo-text {
  font-size: var(--text-2xl);
  font-weight: var(--font-bold);
  color: var(--text-primary);
  letter-spacing: 0.1em;
}

.loading-spinner {
  width: 40px;
  height: 40px;
  border: 3px solid var(--border);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

/* Page Container */

.page {
  flex: 1;
  display: flex;
  flex-direction: column;
  padding: var(--space-md);
  padding-top: calc(var(--safe-top) + var(--space-sm));
  padding-bottom: calc(var(--safe-bottom) + var(--space-sm));
  max-width: 480px;
  margin: 0 auto;
  width: 100%;
  overflow-y: auto;
}

.page--center {
  justify-content: center;
  align-items: center;
}

.page--full {
  padding: 0;
  max-width: none;
}

/* Taller screens get more padding */
@media (min-height: 800px) {
  .page {
    padding-top: calc(var(--safe-top) + var(--space-md));
    padding-bottom: calc(var(--safe-bottom) + var(--space-md));
  }
}

/* Section */

.section {
  margin-bottom: var(--space-xl);
}

.section-title {
  font-size: var(--text-lg);
  font-weight: var(--font-semibold);
  margin-bottom: var(--space-md);
}

/* Spacer */

.spacer {
  flex: 1;
}

/* Utility Classes */

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

.text-left {
  text-align: left;
}

.text-right {
  text-align: right;
}

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

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

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

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

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

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

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

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

.gap-sm { gap: var(--space-sm); }
.gap-md { gap: var(--space-md); }
.gap-lg { gap: var(--space-lg); }

.flex {
  display: flex;
}

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

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

.items-center {
  align-items: center;
}

.justify-center {
  justify-content: center;
}

.justify-between {
  justify-content: space-between;
}

.w-full {
  width: 100%;
}

/* Gradient Text */

.gradient-text {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Divider */

.divider {
  height: 1px;
  background: var(--border);
  margin: var(--space-lg) 0;
}

/* Badge */

.badge {
  display: inline-flex;
  align-items: center;
  padding: var(--space-xs) var(--space-sm);
  font-size: var(--text-xs);
  font-weight: var(--font-medium);
  border-radius: var(--radius-full);
  background: var(--bg-elevated);
  color: var(--text-secondary);
}

.badge--success {
  background: var(--success-light);
  color: var(--success);
}

.badge--warning {
  background: var(--warning-light);
  color: #92400e;
}

.badge--danger {
  background: var(--danger-light);
  color: var(--danger);
}

.badge--primary {
  background: rgba(var(--primary-rgb), 0.2);
  color: var(--primary-light);
}

/* Avatar */

.avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: var(--font-bold);
  font-size: var(--text-lg);
  color: white;
  flex-shrink: 0;
}

.avatar--sm {
  width: 36px;
  height: 36px;
  font-size: var(--text-base);
}

.avatar--lg {
  width: 64px;
  height: 64px;
  font-size: var(--text-xl);
}

/* Icon */

.icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
}

.icon--sm {
  width: 16px;
  height: 16px;
}

.icon--lg {
  width: 32px;
  height: 32px;
}

/* Hidden */

.hidden {
  display: none !important;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}