/* ========================================================================
   Components — buttons, cards, inputs, badges, modals, toasts
   ======================================================================== */

/* ── Buttons ──────────────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  font-family: var(--font-sans);
  font-size: var(--text-sm);
  font-weight: 500;
  letter-spacing: 0.01em;
  padding: 12px 22px;
  border-radius: var(--radius-full);
  border: 1px solid transparent;
  background: var(--ink-500);
  color: var(--cream-50);
  cursor: pointer;
  transition:
    background var(--dur-base) var(--ease-out),
    color var(--dur-base) var(--ease-out),
    border-color var(--dur-base) var(--ease-out),
    transform var(--dur-fast) var(--ease-out),
    box-shadow var(--dur-base) var(--ease-out);
  white-space: nowrap;
  position: relative;
  isolation: isolate;
}

.btn:hover { background: var(--ink-600); transform: translateY(-1px); }
.btn:active { transform: translateY(0); }

.btn--primary {
  background: var(--clay-500);
  color: var(--cream-50);
  box-shadow: 0 1px 2px rgba(122, 47, 5, 0.3), inset 0 1px 0 rgba(255,255,255,0.12);
}
.btn--primary:hover { background: var(--clay-600); box-shadow: var(--shadow-warm); }

.btn--ghost {
  background: transparent;
  color: var(--ink-500);
  border-color: var(--border-strong);
}
.btn--ghost:hover { background: var(--ink-500); color: var(--cream-50); border-color: var(--ink-500); }

.btn--soft {
  background: var(--cream-200);
  color: var(--ink-500);
  border-color: transparent;
}
.btn--soft:hover { background: var(--cream-300); }

.btn--link {
  background: transparent;
  color: var(--ink-500);
  padding: 8px 0;
  border-radius: 0;
  border-bottom: 1px solid var(--ink-400);
}
.btn--link:hover { color: var(--clay-500); border-bottom-color: var(--clay-500); transform: none; }

.btn--lg { padding: 16px 32px; font-size: var(--text-base); }
.btn--sm { padding: 8px 14px; font-size: var(--text-xs); }
.btn--xs { padding: 6px 10px; font-size: var(--text-2xs); }

.btn--icon {
  width: 40px; height: 40px;
  padding: 0;
  border-radius: var(--radius-full);
  background: transparent;
  color: var(--ink-500);
  border: 1px solid var(--border-strong);
}
.btn--icon:hover { background: var(--ink-500); color: var(--cream-50); }

.btn--block { width: 100%; }
.btn:disabled, .btn[aria-disabled="true"] {
  opacity: 0.45;
  pointer-events: none;
}

/* Sparkle for AI buttons */
.btn--ai {
  background: linear-gradient(135deg, var(--ink-500), var(--ink-400));
  color: var(--cream-50);
  position: relative;
  overflow: hidden;
}
.btn--ai::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, transparent 40%, rgba(255,255,255,0.15) 50%, transparent 60%);
  transform: translateX(-100%);
  transition: transform 700ms var(--ease-out);
}
.btn--ai:hover::before { transform: translateX(100%); }

/* ── Cards ────────────────────────────────────────────────────────────── */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  transition: border-color var(--dur-base) var(--ease-out),
              box-shadow var(--dur-base) var(--ease-out),
              transform var(--dur-base) var(--ease-out);
}
.card--interactive { cursor: pointer; }
.card--interactive:hover {
  border-color: var(--border-strong);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.card--flat { border-radius: var(--radius-md); padding: var(--space-5); }
.card--warm { background: var(--cream-100); border-color: transparent; }

/* ── Inputs ───────────────────────────────────────────────────────────── */
.input, .select, .textarea {
  width: 100%;
  padding: 14px 16px;
  background: var(--surface);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  color: var(--text);
  transition: border-color var(--dur-base) var(--ease-out),
              box-shadow var(--dur-base) var(--ease-out),
              background var(--dur-base) var(--ease-out);
}
.input::placeholder, .textarea::placeholder { color: var(--text-subtle); }
.input:hover, .select:hover, .textarea:hover { border-color: var(--ink-200); }
.input:focus, .select:focus, .textarea:focus {
  border-color: var(--clay-500);
  box-shadow: 0 0 0 3px var(--clay-50);
}

.textarea { resize: vertical; min-height: 112px; }

.field {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.field-label {
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--text-muted);
}
.field-hint {
  font-size: var(--text-xs);
  color: var(--text-subtle);
}

/* Input with icon */
.input-group {
  position: relative;
}
.input-group .icon-left {
  position: absolute;
  left: 16px; top: 50%; transform: translateY(-50%);
  color: var(--text-muted);
  pointer-events: none;
}
.input-group .input { padding-left: 44px; }

/* Checkbox / Radio */
.check, .radio {
  appearance: none;
  width: 18px; height: 18px;
  border: 1.5px solid var(--ink-200);
  background: var(--surface);
  display: inline-grid; place-items: center;
  transition: all var(--dur-fast) var(--ease-out);
  flex-shrink: 0;
}
.check { border-radius: 5px; }
.radio { border-radius: 50%; }
.check:checked, .radio:checked { background: var(--clay-500); border-color: var(--clay-500); }
.check:checked::after {
  content: "✓"; color: var(--cream-50); font-size: 13px; font-weight: 700;
}
.radio:checked::after {
  content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--cream-50);
}

/* Toggle */
.toggle {
  appearance: none;
  width: 36px; height: 20px;
  background: var(--ink-100);
  border-radius: 999px;
  position: relative;
  transition: background var(--dur-base) var(--ease-out);
  cursor: pointer;
}
.toggle::after {
  content: "";
  position: absolute;
  left: 2px; top: 2px;
  width: 16px; height: 16px;
  background: white;
  border-radius: 50%;
  transition: transform var(--dur-base) var(--ease-out);
  box-shadow: var(--shadow-sm);
}
.toggle:checked { background: var(--clay-500); }
.toggle:checked::after { transform: translateX(16px); }

/* ── Badges ──────────────────────────────────────────────────────────── */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  font-size: var(--text-2xs);
  font-weight: 500;
  letter-spacing: 0.04em;
  border-radius: 999px;
  background: var(--cream-200);
  color: var(--ink-400);
  border: 1px solid transparent;
}
.badge--clay   { background: var(--clay-50); color: var(--clay-600); }
.badge--sage   { background: var(--sage-50); color: var(--sage-700); }
.badge--ink    { background: var(--ink-500); color: var(--cream-50); }
.badge--gold   { background: #FBF1DC; color: var(--gold-700); }
.badge--outline{ background: transparent; border-color: var(--border-strong); color: var(--text-muted); }
.badge--ai {
  background: linear-gradient(120deg, var(--ink-500), var(--ink-400));
  color: var(--cream-50);
}
.badge--dot::before {
  content: "";
  width: 6px; height: 6px;
  border-radius: 50%;
  background: currentColor;
}

/* ── Chips ────────────────────────────────────────────────────────────── */
.chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  background: var(--surface);
  border: 1px solid var(--border-strong);
  border-radius: 999px;
  font-size: var(--text-sm);
  color: var(--ink-400);
  cursor: pointer;
  transition: all var(--dur-base) var(--ease-out);
}
.chip:hover { border-color: var(--ink-300); color: var(--ink-500); }
.chip[aria-selected="true"], .chip.is-active {
  background: var(--ink-500);
  color: var(--cream-50);
  border-color: var(--ink-500);
}

/* ── Avatars ──────────────────────────────────────────────────────────── */
.avatar {
  width: 36px; height: 36px;
  border-radius: 50%;
  background: var(--cream-200);
  display: inline-grid; place-items: center;
  font-family: var(--font-display);
  font-size: var(--text-sm);
  color: var(--ink-500);
  overflow: hidden;
  border: 1px solid var(--border);
  flex-shrink: 0;
}
.avatar--sm { width: 28px; height: 28px; font-size: var(--text-xs); }
.avatar--lg { width: 56px; height: 56px; font-size: var(--text-lg); }
.avatar--xl { width: 88px; height: 88px; font-size: var(--text-2xl); }
.avatar img { width: 100%; height: 100%; object-fit: cover; }
.avatar-stack { display: inline-flex; }
.avatar-stack .avatar + .avatar { margin-left: -10px; box-shadow: 0 0 0 2px var(--bg); }

/* ── Tabs ─────────────────────────────────────────────────────────────── */
.tabs {
  display: inline-flex;
  gap: 4px;
  padding: 4px;
  background: var(--cream-200);
  border-radius: 999px;
}
.tab {
  padding: 8px 18px;
  font-size: var(--text-sm);
  border-radius: 999px;
  color: var(--text-muted);
  cursor: pointer;
  transition: all var(--dur-base) var(--ease-out);
}
.tab:hover { color: var(--ink-500); }
.tab.is-active { background: var(--surface); color: var(--ink-500); box-shadow: var(--shadow-sm); }

/* Underline tabs (used in workspace etc) */
.tabs-underline {
  display: flex;
  gap: 32px;
  border-bottom: 1px solid var(--border);
}
.tabs-underline .tab {
  padding: 16px 0;
  background: transparent;
  border-radius: 0;
  border-bottom: 2px solid transparent;
  font-weight: 500;
}
.tabs-underline .tab.is-active {
  background: transparent;
  box-shadow: none;
  border-bottom-color: var(--clay-500);
  color: var(--clay-500);
}

/* ── Toasts ──────────────────────────────────────────────────────────── */
.toast-host {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 1000;
  display: flex;
  flex-direction: column;
  gap: 10px;
  pointer-events: none;
}
.toast {
  background: var(--ink-500);
  color: var(--cream-50);
  padding: 14px 18px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  font-size: var(--text-sm);
  min-width: 240px;
  max-width: 360px;
  pointer-events: auto;
  animation: toast-in 320ms var(--ease-spring);
  display: flex;
  align-items: center;
  gap: 12px;
}
.toast--success { background: var(--sage-500); }
.toast--danger { background: var(--rose-500); }
.toast--clay { background: var(--clay-500); }
.toast.is-leaving { animation: toast-out 220ms var(--ease-out) forwards; }
@keyframes toast-in {
  from { transform: translateY(20px) scale(0.96); opacity: 0; }
  to { transform: translateY(0) scale(1); opacity: 1; }
}
@keyframes toast-out {
  to { transform: translateY(10px) scale(0.96); opacity: 0; }
}

/* ── Modal ───────────────────────────────────────────────────────────── */
.modal-backdrop {
  position: fixed; inset: 0;
  background: rgba(17, 16, 13, 0.45);
  backdrop-filter: blur(6px);
  z-index: 900;
  display: grid;
  place-items: center;
  padding: 24px;
  opacity: 0;
  transition: opacity var(--dur-base) var(--ease-out);
}
.modal-backdrop.is-open { opacity: 1; }
.modal {
  background: var(--surface);
  border-radius: var(--radius-xl);
  max-width: 560px;
  width: 100%;
  max-height: 90vh;
  overflow: auto;
  box-shadow: var(--shadow-xl);
  transform: translateY(20px) scale(0.96);
  transition: transform var(--dur-base) var(--ease-spring);
}
.modal-backdrop.is-open .modal { transform: translateY(0) scale(1); }
.modal-header {
  padding: 24px 28px 0;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
}
.modal-body { padding: 16px 28px 28px; }
.modal-footer {
  padding: 0 28px 24px;
  display: flex;
  gap: 12px;
  justify-content: flex-end;
}

/* ── Progress ─────────────────────────────────────────────────────────── */
.progress {
  height: 6px;
  background: var(--cream-200);
  border-radius: 999px;
  overflow: hidden;
}
.progress > i {
  display: block;
  height: 100%;
  background: linear-gradient(90deg, var(--clay-500), var(--clay-300));
  border-radius: 999px;
  transition: width var(--dur-slow) var(--ease-out);
}

/* ── Star rating ──────────────────────────────────────────────────────── */
.stars {
  display: inline-flex;
  gap: 2px;
  color: var(--gold-500);
  font-size: 13px;
  letter-spacing: 1px;
}
.stars span { line-height: 1; }
.stars-muted { color: var(--ink-100); }

/* ── Empty state ──────────────────────────────────────────────────────── */
.empty {
  text-align: center;
  padding: 80px 24px;
  color: var(--text-muted);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0;
  max-width: 520px;
  margin: 0 auto;
  min-height: 60vh;
}
.empty .icon {
  width: 72px; height: 72px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--cream-100), var(--cream-200));
  display: inline-grid; place-items: center;
  margin-bottom: 24px;
  color: var(--clay-500);
  font-size: 2rem;
  box-shadow: 0 4px 16px rgba(194, 83, 12, 0.08);
}
.empty h2 {
  margin-bottom: 12px;
  color: var(--ink-500);
}
.empty p {
  margin-bottom: 28px;
  max-width: 40ch;
  line-height: 1.55;
}

/* ── Skeleton ─────────────────────────────────────────────────────────── */
.skeleton {
  background: linear-gradient(90deg, var(--cream-200) 25%, var(--cream-100) 50%, var(--cream-200) 75%);
  background-size: 200% 100%;
  animation: skeleton 1.4s linear infinite;
  border-radius: var(--radius-sm);
}
@keyframes skeleton {
  from { background-position: 200% 0; }
  to { background-position: -200% 0; }
}

/* ── Floating action / Quick action ───────────────────────────────────── */
.fab {
  position: fixed;
  bottom: 24px; right: 24px;
  width: 56px; height: 56px;
  background: var(--clay-500);
  color: white;
  border-radius: 50%;
  display: grid; place-items: center;
  box-shadow: var(--shadow-warm);
  cursor: pointer;
  z-index: 50;
  transition: transform var(--dur-base) var(--ease-spring);
}
.fab:hover { transform: translateY(-3px) scale(1.05); }

/* ── Icon helpers ─────────────────────────────────────────────────────── */
.icon {
  width: 1em;
  height: 1em;
  flex-shrink: 0;
  vertical-align: -0.1em;
}
.icon-circle {
  width: 40px; height: 40px;
  border-radius: 50%;
  display: inline-grid; place-items: center;
  background: var(--cream-100);
  color: var(--clay-500);
  flex-shrink: 0;
}
.icon-circle--sage { background: var(--sage-50); color: var(--sage-700); }
.icon-circle--ink { background: var(--ink-500); color: var(--cream-50); }
.icon-circle--lg { width: 56px; height: 56px; }

/* ── Tooltip (CSS only) ───────────────────────────────────────────────── */
[data-tip] { position: relative; }
[data-tip]::after {
  content: attr(data-tip);
  position: absolute;
  bottom: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%) translateY(4px);
  background: var(--ink-500);
  color: var(--cream-50);
  font-size: var(--text-xs);
  padding: 6px 10px;
  border-radius: var(--radius-sm);
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: all var(--dur-fast) var(--ease-out);
  z-index: 100;
}
[data-tip]:hover::after {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* ── Tag (decorative) ─────────────────────────────────────────────────── */
.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: var(--text-2xs);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-300);
}
.tag::before {
  content: "";
  width: 6px; height: 6px;
  background: currentColor;
  border-radius: 50%;
}

/* ── Section heading ──────────────────────────────────────────────────── */
.section-head {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: var(--space-7);
  flex-wrap: wrap;
}
.section-head h2, .section-head h3 { max-width: 24ch; }