/**
 * DDE Design System — shared production UI primitives
 * 8px spacing grid · WCAG-minded focus · consistent components
 * Load after page-specific tokens so local --coral/--ink still apply.
 */

/* ── Spacing scale (8px grid) ── */
:root {
  --ds-0: 0;
  --ds-1: 4px;
  --ds-2: 8px;
  --ds-3: 12px;
  --ds-4: 16px;
  --ds-5: 24px;
  --ds-6: 32px;
  --ds-7: 40px;
  --ds-8: 48px;
  --ds-9: 64px;

  --ds-r-sm: 8px;
  --ds-r: 12px;
  --ds-r-lg: 16px;
  --ds-r-xl: 20px;
  --ds-r-full: 999px;

  --ds-shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.05);
  --ds-shadow: 0 1px 2px rgba(15, 23, 42, 0.05), 0 4px 14px rgba(15, 23, 42, 0.05);
  --ds-shadow-md: 0 12px 28px rgba(15, 23, 42, 0.1);
  --ds-shadow-lg: 0 24px 48px rgba(15, 23, 42, 0.14);

  --ds-focus: 0 0 0 3px rgba(204, 0, 0, 0.28);
  --ds-focus-coral: 0 0 0 3px rgba(255, 79, 69, 0.32);
  --ds-ease: cubic-bezier(0.16, 1, 0.3, 1);
  --ds-touch: 44px;
}

/* ── Global focus (keyboard) ── */
:focus {
  outline: none;
}
:focus-visible {
  outline: 2px solid var(--coral, var(--red, #cc0000));
  outline-offset: 2px;
  box-shadow: var(--ds-focus-coral);
}
button:focus-visible,
a:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible,
[role="button"]:focus-visible,
.nav-item:focus-visible,
.sidebar-item:focus-visible {
  outline: 2px solid var(--coral, var(--red, #cc0000));
  outline-offset: 2px;
}

/* ── Touch targets ── */
.icon-btn,
.topbar-btn,
.sidebar-toggle,
.nav-burger,
.wizard-close,
.notif-dismiss {
  min-width: var(--ds-touch);
  min-height: var(--ds-touch);
}

/* ── Buttons (unified) ── */
.ds-btn,
.form-submit,
.auth-btn,
.wizard-btn.primary,
.cf-submit,
.btn-hero {
  transition: transform 0.2s var(--ds-ease), box-shadow 0.2s var(--ds-ease), opacity 0.15s ease;
}
.ds-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--ds-2);
  min-height: 40px;
  padding: 0 var(--ds-5);
  border-radius: var(--ds-r-sm);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border: none;
  cursor: pointer;
  white-space: nowrap;
}
.ds-btn:disabled,
.form-submit:disabled,
.auth-btn:disabled {
  opacity: 0.55;
  cursor: not-allowed;
  transform: none !important;
  box-shadow: none !important;
}
.ds-btn-primary {
  background: linear-gradient(135deg, var(--coral, #ff4f45), var(--caramel, #f5a658));
  color: #fff;
  box-shadow: 0 6px 16px rgba(255, 79, 69, 0.22);
}
.ds-btn-primary:hover:not(:disabled) {
  transform: translateY(-1px);
  box-shadow: 0 10px 24px rgba(255, 79, 69, 0.3);
}
.ds-btn-secondary {
  background: var(--bg-card, #fff);
  color: var(--ink, #0a0a0a);
  border: 1px solid var(--border, rgba(10, 10, 10, 0.1));
}
.ds-btn-ghost {
  background: transparent;
  color: var(--muted, #6b6560);
  border: 1px solid var(--border, rgba(10, 10, 10, 0.1));
}
.ds-btn-danger {
  background: #dc2626;
  color: #fff;
}
.ds-btn-sm {
  min-height: 32px;
  padding: 0 var(--ds-3);
  font-size: 0.65rem;
}

/* ── Cards ── */
.ds-card {
  background: var(--bg-card, #fff);
  border: 1px solid var(--border, rgba(10, 10, 10, 0.1));
  border-radius: var(--ds-r);
  box-shadow: var(--ds-shadow);
  padding: var(--ds-5);
}

/* ── Inputs ── */
.ds-input,
.form-input,
.auth-field input,
.field input,
.wizard-form input {
  min-height: 44px;
  transition: border-color 0.2s, box-shadow 0.2s, background 0.2s;
}
.ds-input:focus,
.form-input:focus,
.auth-field input:focus,
.field input:focus {
  box-shadow: var(--ds-focus-coral);
}

/* ── Badges ── */
.ds-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 0.2rem 0.65rem;
  border-radius: var(--ds-r-full);
  font-size: 0.6rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.ds-badge-success {
  background: rgba(22, 163, 74, 0.12);
  color: #15803d;
}
.ds-badge-warn {
  background: rgba(217, 119, 6, 0.12);
  color: #b45309;
}
.ds-badge-danger {
  background: rgba(220, 38, 38, 0.1);
  color: #b91c1c;
}
.ds-badge-info {
  background: rgba(37, 99, 235, 0.1);
  color: #1d4ed8;
}
.ds-badge-neutral {
  background: rgba(100, 116, 139, 0.12);
  color: #475569;
}

/* ── Alerts ── */
.ds-alert {
  display: flex;
  align-items: flex-start;
  gap: var(--ds-3);
  padding: var(--ds-3) var(--ds-4);
  border-radius: var(--ds-r-sm);
  font-size: 0.84rem;
  line-height: 1.5;
  border: 1px solid transparent;
}
.ds-alert-error {
  background: rgba(239, 68, 68, 0.08);
  border-color: rgba(239, 68, 68, 0.2);
  color: #b91c1c;
}
.ds-alert-success {
  background: rgba(22, 163, 74, 0.08);
  border-color: rgba(22, 163, 74, 0.2);
  color: #15803d;
}
.ds-alert-info {
  background: rgba(37, 99, 235, 0.08);
  border-color: rgba(37, 99, 235, 0.18);
  color: #1d4ed8;
}

/* ── Empty states ── */
.ds-empty,
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--ds-8) var(--ds-5);
  color: var(--muted, #6b6560);
}
.ds-empty-icon,
.empty-state-icon {
  width: 56px;
  height: 56px;
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: var(--ds-4);
  background: rgba(10, 10, 10, 0.04);
  color: var(--muted, #6b6560);
}
.ds-empty-title,
.empty-state-title {
  font-family: var(--display, inherit);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--ink, #0a0a0a);
  margin-bottom: var(--ds-2);
  letter-spacing: -0.02em;
}
.ds-empty-desc,
.empty-state-desc {
  font-size: 0.84rem;
  line-height: 1.55;
  max-width: 32ch;
  margin-bottom: var(--ds-5);
}
.ds-empty-action {
  margin-top: var(--ds-2);
}

/* ── Loading skeleton ── */
.ds-skeleton {
  background: linear-gradient(
    90deg,
    rgba(10, 10, 10, 0.06) 25%,
    rgba(10, 10, 10, 0.1) 50%,
    rgba(10, 10, 10, 0.06) 75%
  );
  background-size: 200% 100%;
  animation: dsShimmer 1.2s ease-in-out infinite;
  border-radius: var(--ds-r-sm);
}
@keyframes dsShimmer {
  0% {
    background-position: 200% 0;
  }
  100% {
    background-position: -200% 0;
  }
}
.ds-skeleton-row {
  height: 14px;
  margin-bottom: 10px;
}
.ds-skeleton-card {
  height: 120px;
  border-radius: var(--ds-r);
}

/* ── Table shell ── */
.ds-table-wrap,
.table-wrap {
  width: 100%;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border: 1px solid var(--border, rgba(10, 10, 10, 0.1));
  border-radius: var(--ds-r);
  background: var(--bg-card, #fff);
  box-shadow: var(--ds-shadow-sm);
}
.ds-table-toolbar,
.table-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--ds-3);
  margin-bottom: var(--ds-4);
}
.ds-table-search {
  flex: 1 1 200px;
  min-width: 160px;
  position: relative;
}
.ds-table-search input {
  width: 100%;
  min-height: 40px;
  padding: 0.55rem 0.9rem 0.55rem 2.4rem;
  border: 1px solid var(--border, rgba(10, 10, 10, 0.1));
  border-radius: var(--ds-r-sm);
  background: var(--bg-card, #fff);
  font-size: 0.84rem;
  color: var(--ink, #0a0a0a);
}
.ds-table-search i {
  position: absolute;
  left: 0.75rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--muted, #6b6560);
  pointer-events: none;
}
.ds-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.84rem;
}
.ds-table th {
  position: sticky;
  top: 0;
  z-index: 1;
  text-align: left;
  font-size: 0.58rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted, #6b6560);
  padding: 0.85rem 1.1rem;
  background: rgba(10, 10, 10, 0.025);
  border-bottom: 1px solid var(--border, rgba(10, 10, 10, 0.1));
  white-space: nowrap;
}
.ds-table td {
  padding: 0.9rem 1.1rem;
  border-bottom: 1px solid var(--border, rgba(10, 10, 10, 0.08));
  vertical-align: middle;
}
.ds-table tr:last-child td {
  border-bottom: none;
}
.ds-table tbody tr:hover td {
  background: rgba(10, 10, 10, 0.02);
}
.ds-table-sortable {
  cursor: pointer;
  user-select: none;
}
.ds-table-sortable:hover {
  color: var(--ink, #0a0a0a);
}
.ds-pagination {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--ds-3);
  flex-wrap: wrap;
  margin-top: var(--ds-4);
  font-size: 0.78rem;
  color: var(--muted, #6b6560);
}
.ds-pagination-btns {
  display: flex;
  gap: var(--ds-2);
}

/* ── Modal shell ── */
.ds-modal-scrim {
  position: fixed;
  inset: 0;
  z-index: 1500;
  background: rgba(10, 10, 10, 0.45);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--ds-4);
}
.ds-modal {
  width: min(520px, 100%);
  max-height: min(90vh, 800px);
  overflow: auto;
  background: var(--bg-card, #fff);
  border: 1px solid var(--border-strong, rgba(10, 10, 10, 0.14));
  border-radius: var(--ds-r-lg);
  box-shadow: var(--ds-shadow-lg);
}

/* ── Required field marker ── */
.ds-required::after,
label .req {
  content: " *";
  color: #dc2626;
  font-weight: 700;
}

/* ── Toast elevation ── */
#toast {
  border-radius: var(--ds-r) !important;
  box-shadow: var(--ds-shadow-md) !important;
}

/* ── Reduced motion ── */
@media (prefers-reduced-motion: reduce) {
  .ds-skeleton {
    animation: none;
  }
  .ds-btn,
  .form-submit,
  .auth-btn {
    transition: none;
  }
}

/* ── Dark mode support ── */
[data-theme="dark"] .ds-empty-icon,
[data-theme="dark"] .empty-state-icon {
  background: rgba(255, 255, 255, 0.06);
}
[data-theme="dark"] .ds-skeleton {
  background: linear-gradient(
    90deg,
    rgba(255, 255, 255, 0.04) 25%,
    rgba(255, 255, 255, 0.08) 50%,
    rgba(255, 255, 255, 0.04) 75%
  );
  background-size: 200% 100%;
}
[data-theme="dark"] .ds-table th {
  background: rgba(255, 255, 255, 0.04);
}
[data-theme="dark"] .ds-table tbody tr:hover td {
  background: rgba(255, 255, 255, 0.03);
}