/* ==========================================================================
   COMPONENTS
   ========================================================================== */

/* --- Buttons --- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: var(--sp-2);
  padding: 0.85rem 1.6rem;
  border-radius: var(--radius-pill);
  border: 1px solid transparent;
  font-weight: 600; font-size: var(--text-sm);
  letter-spacing: 0.01em;
  transition: transform var(--dur-fast) var(--ease-out), box-shadow var(--dur-fast) var(--ease-out), background var(--dur-fast) var(--ease-out), opacity var(--dur-fast);
  white-space: nowrap;
}
.btn:active { transform: scale(0.97); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }
.btn-primary { background: var(--color-ember); color: #FFF9F3; box-shadow: var(--shadow-sm); }
.btn-primary:hover:not(:disabled) { background: var(--color-ember-deep); box-shadow: var(--shadow-ember); }
.btn-dark { background: var(--color-char); color: var(--color-bg); }
.btn-dark:hover:not(:disabled) { background: var(--color-char-soft); }
.btn-outline { background: transparent; border-color: var(--color-line-strong); color: var(--color-char); }
.btn-outline:hover:not(:disabled) { border-color: var(--color-char); }
.btn-ghost { background: transparent; color: var(--color-char); padding: 0.6rem 0.9rem; }
.btn-ghost:hover:not(:disabled) { background: var(--color-bg-sunken); }
.btn-danger { background: var(--color-danger); color: #fff; }
.btn-sm { padding: 0.5rem 1rem; font-size: var(--text-xs); }
.btn-lg { padding: 1.05rem 2.1rem; font-size: var(--text-base); }
.btn-block { width: 100%; }
.btn-icon { padding: 0.65rem; border-radius: 50%; }

/* --- Cards --- */
.card {
  background: var(--color-bg-raised);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  padding: var(--sp-6);
  transition: box-shadow var(--dur-med) var(--ease-out), transform var(--dur-med) var(--ease-out), border-color var(--dur-med);
}
.card-hover:hover { box-shadow: var(--shadow-md); transform: translateY(-3px); border-color: var(--color-line-strong); }
.card-flush { padding: 0; overflow: hidden; }

/* --- Inputs --- */
.field { display: flex; flex-direction: column; gap: var(--sp-2); margin-bottom: var(--sp-4); }
.field label { font-size: var(--text-sm); font-weight: 600; color: var(--color-char-soft); }
.field .hint { font-size: var(--text-xs); color: var(--color-ink-muted); }
.field .error-text { font-size: var(--text-xs); color: var(--color-danger); display: none; }
.field.has-error .error-text { display: block; }
.field.has-error input, .field.has-error select, .field.has-error textarea { border-color: var(--color-danger); }
.input, select.input, textarea.input {
  width: 100%; padding: 0.85rem 1rem;
  background: var(--color-bg-raised);
  border: 1px solid var(--color-line-strong);
  border-radius: var(--radius-md);
  color: var(--color-char);
  transition: border-color var(--dur-fast);
}
.input:focus { border-color: var(--color-ember); outline: none; }
textarea.input { resize: vertical; min-height: 90px; }
.input-group { position: relative; }
.input-group .input { padding-left: 2.6rem; }
.input-group .icon { position: absolute; left: 0.9rem; top: 50%; transform: translateY(-50%); opacity: 0.5; }

/* --- Badges --- */
.badge {
  display: inline-flex; align-items: center; gap: var(--sp-1);
  padding: 0.3rem 0.75rem; border-radius: var(--radius-pill);
  font-size: var(--text-xs); font-weight: 700; letter-spacing: 0.02em;
}
.badge-ember { background: rgba(193,80,46,0.12); color: var(--color-ember-deep); }
.badge-olive { background: rgba(107,113,86,0.14); color: var(--color-olive); }
.badge-gold  { background: rgba(184,147,90,0.16); color: var(--color-gold); }
.badge-success { background: rgba(76,122,79,0.14); color: var(--color-success); }
.badge-danger  { background: rgba(180,57,43,0.12); color: var(--color-danger); }
.badge-warning { background: rgba(184,134,58,0.14); color: var(--color-warning); }
.badge-muted { background: var(--color-bg-sunken); color: var(--color-ink-muted); }

/* --- Nav --- */
.site-header {
  position: sticky; top: 0; z-index: 100; height: var(--header-h);
  display: flex; align-items: center;
  background: color-mix(in srgb, var(--color-bg) 88%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-line);
}
.logo { font-family: var(--font-display); font-size: var(--text-xl); font-weight: 700; }
.logo .accent { color: var(--color-ember); }
.nav-links { display: flex; gap: var(--sp-6); font-weight: 600; font-size: var(--text-sm); }
.nav-links a { opacity: 0.75; transition: opacity var(--dur-fast); }
.nav-links a:hover, .nav-links a.active { opacity: 1; color: var(--color-ember); }
.nav-cta { display: flex; align-items: center; gap: var(--sp-3); }
.icon-btn {
  position: relative; width: 42px; height: 42px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  background: var(--color-bg-sunken); transition: background var(--dur-fast);
}
.icon-btn:hover { background: var(--color-line-strong); }
.cart-count {
  position: absolute; top: -4px; right: -4px; background: var(--color-ember); color: #fff;
  font-size: 10px; font-weight: 700; min-width: 18px; height: 18px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center; padding: 0 3px;
}
.mobile-menu-btn { display: none; }
@media (max-width: 900px) {
  .nav-links {
    display: none;
    position: absolute;
    top: var(--header-h);
    left: 0; right: 0;
    flex-direction: column;
    gap: 0;
    background: var(--color-bg-raised);
    border-bottom: 1px solid var(--color-line);
    box-shadow: var(--shadow-md);
    padding: var(--sp-2) var(--sp-4);
    z-index: 90;
  }
  .nav-links.mobile-open { display: flex; }
  .nav-links a {
    padding: var(--sp-4) var(--sp-2);
    border-bottom: 1px solid var(--color-line);
    opacity: 1;
    font-size: var(--text-base);
  }
  .nav-links a:last-child { border-bottom: none; }
  .mobile-menu-btn { display: flex; }
}

/* --- Toasts --- */
.toast-stack {
  position: fixed; bottom: var(--sp-5); right: var(--sp-5); z-index: 1000;
  display: flex; flex-direction: column; gap: var(--sp-2); max-width: 360px;
}
.toast {
  background: var(--color-char); color: var(--color-bg);
  padding: var(--sp-3) var(--sp-4); border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg); font-size: var(--text-sm); font-weight: 600;
  display: flex; align-items: center; gap: var(--sp-2);
  animation: toastIn var(--dur-med) var(--ease-out);
}
.toast.success { border-left: 3px solid var(--color-success); }
.toast.error { border-left: 3px solid var(--color-danger); }
.toast.info { border-left: 3px solid var(--color-gold); }
@keyframes toastIn { from { opacity: 0; transform: translateY(12px); } to { opacity: 1; transform: translateY(0); } }
.toast.leaving { animation: toastOut var(--dur-fast) var(--ease-out) forwards; }
@keyframes toastOut { to { opacity: 0; transform: translateX(20px); } }

/* --- Modal --- */
.modal-backdrop {
  position: fixed; inset: 0; background: rgba(20,18,15,0.55); backdrop-filter: blur(3px);
  z-index: 500; display: flex; align-items: center; justify-content: center; padding: var(--sp-4);
  animation: fadeIn var(--dur-fast) var(--ease-out);
}
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
.modal {
  background: var(--color-bg-raised); border-radius: var(--radius-lg);
  max-width: 520px; width: 100%; max-height: 88vh; overflow-y: auto;
  padding: var(--sp-6); box-shadow: var(--shadow-lg);
  animation: modalIn var(--dur-med) var(--ease-out);
}
@keyframes modalIn { from { opacity: 0; transform: translateY(20px) scale(0.98); } to { opacity: 1; transform: translateY(0) scale(1); } }
.modal-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: var(--sp-5); }
.modal-close { background: none; border: none; font-size: 1.4rem; opacity: 0.6; }

/* --- Skeleton --- */
.skeleton {
  background: linear-gradient(90deg, var(--color-bg-sunken) 25%, var(--color-line) 50%, var(--color-bg-sunken) 75%);
  background-size: 200% 100%; animation: shimmer 1.4s infinite; border-radius: var(--radius-md);
}
@keyframes shimmer { 0% { background-position: 200% 0; } 100% { background-position: -200% 0; } }

/* --- Empty state --- */
.empty-state { text-align: center; padding: var(--sp-10) var(--sp-4); color: var(--color-ink-muted); }
.empty-state .icon { font-size: 2.6rem; margin-bottom: var(--sp-3); opacity: 0.5; }

/* --- Tabs --- */
.tabs { display: flex; gap: var(--sp-2); border-bottom: 1px solid var(--color-line); overflow-x: auto; }
.tab {
  padding: var(--sp-3) var(--sp-4); font-weight: 600; font-size: var(--text-sm);
  color: var(--color-ink-muted); border-bottom: 2px solid transparent; white-space: nowrap;
}
.tab.active { color: var(--color-ember); border-color: var(--color-ember); }

/* --- Table --- */
.data-table { width: 100%; border-collapse: collapse; font-size: var(--text-sm); }
.data-table th {
  text-align: left; padding: var(--sp-3) var(--sp-4); font-family: var(--font-mono);
  font-size: var(--text-xs); text-transform: uppercase; letter-spacing: 0.06em;
  color: var(--color-ink-muted); border-bottom: 1px solid var(--color-line-strong);
}
.data-table td { padding: var(--sp-3) var(--sp-4); border-bottom: 1px solid var(--color-line); }
.data-table tr:hover td { background: var(--color-bg-sunken); }

/* --- Pagination --- */
.pagination { display: flex; gap: var(--sp-2); align-items: center; justify-content: center; }
.page-btn {
  width: 36px; height: 36px; border-radius: var(--radius-md); display: flex; align-items: center; justify-content: center;
  border: 1px solid var(--color-line-strong); font-size: var(--text-sm); font-weight: 600;
}
.page-btn.active { background: var(--color-char); color: var(--color-bg); border-color: var(--color-char); }

/* --- Loading overlay --- */
.loading-screen {
  position: fixed; inset: 0; background: var(--color-bg); z-index: 2000;
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: var(--sp-4);
}
.ember-spinner { width: 46px; height: 46px; border-radius: 50%; border: 3px solid var(--color-line-strong); border-top-color: var(--color-ember); animation: spin 0.8s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

/* --- Theme toggle --- */
.theme-toggle {
  width: 42px; height: 42px; border-radius: 50%; background: var(--color-bg-sunken);
  display: flex; align-items: center; justify-content: center; font-size: 1.1rem;
}