/**
 * Forge Design System — composable product UI primitives.
 * Requires forge-design-tokens.css.
 */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  font-size: 100%;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--forge-font-sans);
  font-size: var(--forge-text-base);
  line-height: var(--forge-leading);
  color: var(--forge-color-text);
  background: var(--forge-gradient-bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img,
svg {
  display: block;
  max-width: 100%;
}

button,
input,
textarea,
select {
  font: inherit;
  color: inherit;
}

.forge-page {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: var(--forge-space-6);
}

.forge-app-shell {
  width: min(var(--forge-content-max), 100%);
  margin: 0 auto;
  padding: var(--forge-space-6);
}

.forge-auth-card,
.forge-card {
  width: min(var(--forge-shell-max), 100%);
  background: color-mix(in srgb, var(--forge-color-surface) 92%, transparent);
  border: 1px solid var(--forge-color-border);
  border-radius: var(--forge-radius-xl);
  padding: var(--forge-space-8);
  box-shadow: var(--forge-shadow-lg);
  backdrop-filter: var(--forge-blur);
}

.forge-brand {
  display: flex;
  align-items: center;
  gap: var(--forge-space-4);
  margin-bottom: var(--forge-space-6);
}

.forge-brand-mark {
  width: 2.85rem;
  height: 2.85rem;
  display: grid;
  place-items: center;
  border-radius: var(--forge-radius-md);
  background: var(--forge-theme-mark-bg, var(--forge-color-accent-muted));
  color: var(--forge-color-accent);
  font-weight: 800;
  font-size: var(--forge-text-lg);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.12);
}

.forge-brand-label {
  margin: 0;
  font-size: var(--forge-text-sm);
  color: var(--forge-color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.forge-title {
  margin: 0;
  font-size: var(--forge-text-2xl);
  letter-spacing: var(--forge-tracking-tight);
  font-weight: 700;
}

.forge-subtitle {
  margin: var(--forge-space-2) 0 var(--forge-space-6);
  color: var(--forge-color-text-muted);
  font-size: var(--forge-text-sm);
}

.forge-field {
  display: grid;
  gap: var(--forge-space-2);
  margin-bottom: var(--forge-space-4);
  font-size: var(--forge-text-sm);
  color: var(--forge-color-text-muted);
}

.forge-input,
.forge-textarea,
.forge-select {
  width: 100%;
  padding: 0.75rem 0.875rem;
  border-radius: var(--forge-radius-md);
  border: 1px solid var(--forge-color-border);
  background: var(--forge-color-surface-2);
  color: var(--forge-color-text);
  transition: border-color var(--forge-duration-fast) var(--forge-ease),
    box-shadow var(--forge-duration-fast) var(--forge-ease);
}

.forge-textarea {
  min-height: 6rem;
  resize: vertical;
}

.forge-input:focus,
.forge-textarea:focus,
.forge-select:focus {
  outline: none;
  border-color: var(--forge-color-accent);
  box-shadow: 0 0 0 3px var(--forge-color-accent-muted);
}

.forge-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--forge-space-2);
  width: 100%;
  padding: 0.8rem 1.1rem;
  border: none;
  border-radius: var(--forge-radius-md);
  background: var(--forge-theme-btn-gradient, linear-gradient(135deg, var(--forge-color-accent), var(--forge-color-accent-hover)));
  color: #fff;
  font-weight: 700;
  letter-spacing: 0.01em;
  cursor: pointer;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.25);
  transition: transform var(--forge-duration-fast) var(--forge-ease),
    filter var(--forge-duration-fast) var(--forge-ease);
}

.forge-btn:hover:not(:disabled) {
  background: var(--forge-theme-btn-hover, var(--forge-theme-btn-gradient));
  filter: brightness(1.06);
  transform: translateY(-1px);
}

.forge-btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

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

.forge-banner {
  padding: 0.75rem 0.875rem;
  border-radius: var(--forge-radius-md);
  margin-bottom: var(--forge-space-4);
  font-size: var(--forge-text-sm);
}

.forge-banner-error {
  background: var(--forge-color-danger-muted);
  border: 1px solid rgba(255, 123, 123, 0.35);
  color: #ffc9c9;
}

.forge-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--forge-space-4);
  padding: var(--forge-space-4) 0 var(--forge-space-6);
  border-bottom: 1px solid var(--forge-color-border);
  margin-bottom: var(--forge-space-6);
}

.forge-nav {
  display: flex;
  flex-wrap: wrap;
  gap: var(--forge-space-2);
}

.forge-nav-link {
  color: var(--forge-color-text-muted);
  text-decoration: none;
  padding: 0.5rem 0.75rem;
  border-radius: var(--forge-radius-sm);
  font-size: var(--forge-text-sm);
}

.forge-nav-link.active,
.forge-nav-link:hover {
  color: var(--forge-color-text);
  background: var(--forge-color-accent-muted);
}

.forge-section {
  margin-bottom: var(--forge-space-8);
}

.forge-section-title {
  margin: 0 0 var(--forge-space-2);
  font-size: var(--forge-text-xl);
}

.forge-section-desc {
  margin: 0 0 var(--forge-space-4);
  color: var(--forge-color-text-muted);
  font-size: var(--forge-text-sm);
}

.forge-metric-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(9rem, 1fr));
  gap: var(--forge-space-4);
}

.forge-metric-card {
  padding: var(--forge-space-4);
  border-radius: var(--forge-radius-md);
  background: var(--forge-color-surface-2);
  border: 1px solid var(--forge-color-border);
}

.forge-metric-label {
  margin: 0;
  font-size: var(--forge-text-xs);
  color: var(--forge-color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.forge-metric-value {
  margin: var(--forge-space-2) 0 0;
  font-size: var(--forge-text-2xl);
  font-weight: 700;
}

.forge-link {
  color: var(--forge-color-accent);
  text-decoration: none;
}

.forge-link:hover {
  text-decoration: underline;
}

@media (max-width: 768px) {
  .forge-page {
    padding: var(--forge-space-4);
  }

  .forge-auth-card,
  .forge-card,
  .forge-app-shell {
    padding: var(--forge-space-5);
  }

  .forge-header {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 480px) {
  .forge-title {
    font-size: var(--forge-text-xl);
  }
}