/* ============================================================
   TierTalk — Shared Components (soft clay, ขาว-แดง, น่ารัก)
   ใช้ร่วมกันทุกหน้า: stage / admin / speaker / audience
   ============================================================ */

/* ---------------------------------------------------- Card */
.card {
  background: var(--color-surface);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-soft);
  padding: var(--sp-5);
}
.card-flat { box-shadow: var(--shadow-flat); }
.card-clay { box-shadow: var(--shadow-clay); border-color: var(--color-border-strong); }
.card-tint { background: var(--color-surface-2); }

/* ---------------------------------------------------- Button */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--sp-2);
  min-height: 48px;
  padding: 0 var(--sp-5);
  border-radius: var(--radius-full);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--text-base);
  line-height: 1;
  background: var(--color-surface);
  color: var(--color-foreground);
  border: 2px solid var(--color-border-strong);
  box-shadow: var(--shadow-clay);
  transition: transform var(--dur-fast) var(--ease-spring),
              box-shadow var(--dur-fast) var(--ease-out),
              background-color var(--dur-fast) var(--ease-out),
              border-color var(--dur-fast) var(--ease-out);
  will-change: transform;
}
.btn:hover:not(:disabled) { background: var(--color-surface-2); }
.btn:active:not(:disabled) {
  transform: translateY(3px);
  box-shadow: var(--shadow-clay-press);
}
.btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
  box-shadow: var(--shadow-flat);
}

.btn-primary {
  background: var(--color-primary);
  color: var(--color-on-primary);
  border-color: var(--wwa-red-deep);
}
.btn-primary:hover:not(:disabled) { background: var(--color-primary-hover); }

.btn-pink {
  background: var(--wwa-pink);
  color: var(--wwa-ink);
  border-color: var(--color-pink-border);
}
.btn-pink:hover:not(:disabled) { background: var(--color-pink-hover); }

.btn-ghost {
  background: transparent;
  border-color: transparent;
  box-shadow: none;
}
.btn-ghost:hover:not(:disabled) { background: var(--color-surface-2); }
.btn-ghost:active:not(:disabled) { transform: translateY(1px); box-shadow: none; }

.btn-danger {
  background: var(--wwa-white);
  color: var(--color-danger);
  border-color: var(--color-danger-border);
}
.btn-danger:hover:not(:disabled) { background: var(--color-danger-bg); }

.btn-sm { min-height: 38px; padding: 0 var(--sp-4); font-size: var(--text-sm); }
.btn-lg { min-height: 60px; padding: 0 var(--sp-8); font-size: var(--text-lg); }
.btn-block { width: 100%; }
.btn-icon { width: 48px; min-height: 48px; padding: 0; }
.btn-icon.btn-sm { width: 38px; min-height: 38px; }

.btn[aria-pressed='true'] {
  background: var(--color-primary);
  color: var(--color-on-primary);
  border-color: var(--wwa-red-deep);
}

/* ---------------------------------------------------- Badge / Pill */
.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-1);
  padding: 4px var(--sp-3);
  border-radius: var(--radius-full);
  background: var(--color-surface-3);
  color: var(--wwa-red-deep);
  font-size: var(--text-sm);
  font-weight: 700;
  line-height: 1.4;
  white-space: nowrap;
}
.badge-live {
  background: var(--color-primary);
  color: var(--wwa-white);
}
.badge-live::before {
  content: '';
  width: 8px; height: 8px;
  border-radius: 50%;
  background: currentColor;
  animation: pulse-dot 1.6s var(--ease-out) infinite;
}
.badge-ok { background: var(--color-success-bg); color: var(--color-success); }
.badge-warn { background: var(--color-warning-bg); color: var(--color-warning-fg); }
.badge-muted { background: var(--color-surface-2); color: var(--color-muted-fg); }

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.35; transform: scale(0.8); }
}

/* ---------------------------------------------------- Form */
.field { display: flex; flex-direction: column; gap: var(--sp-2); }
.field-label {
  font-weight: 700;
  font-size: var(--text-sm);
  color: var(--wwa-ink-mid);
}
.field-label .req { color: var(--color-danger); }
.field-help { font-size: var(--text-xs); color: var(--color-muted-fg); }
.field-error {
  font-size: var(--text-xs);
  color: var(--color-danger);
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: var(--sp-1);
}

.input,
.select,
.textarea {
  width: 100%;
  min-height: 48px;
  padding: var(--sp-3) var(--sp-4);
  background: var(--color-surface);
  border: 2px solid var(--color-border-strong);
  border-radius: var(--radius-sm);
  font-size: var(--text-base);
  transition: border-color var(--dur-fast) var(--ease-out),
              box-shadow var(--dur-fast) var(--ease-out);
}
.input:focus, .select:focus, .textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 4px rgba(255, 90, 112, 0.18);
}
.input[aria-invalid='true'] { border-color: var(--color-danger); background: var(--color-invalid-bg); }
.textarea { min-height: 110px; resize: vertical; line-height: var(--leading-normal); }
.select { appearance: none; padding-right: var(--sp-10); background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='none' stroke='%238a6b73' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M3 6l5 5 5-5'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right var(--sp-4) center; }

.switch {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-3);
  cursor: pointer;
  user-select: none;
  min-height: 44px;
}
.switch input { position: absolute; opacity: 0; width: 0; height: 0; }
.switch-track {
  width: 52px; height: 30px;
  border-radius: var(--radius-full);
  background: var(--color-border-strong);
  position: relative;
  flex: none;
  transition: background-color var(--dur) var(--ease-out);
}
.switch-track::after {
  content: '';
  position: absolute;
  top: 3px; left: 3px;
  width: 24px; height: 24px;
  border-radius: 50%;
  background: var(--wwa-white);
  box-shadow: 0 2px 5px rgba(0,0,0,.18);
  transition: transform var(--dur) var(--ease-spring);
}
.switch input:checked + .switch-track { background: var(--color-primary); }
.switch input:checked + .switch-track::after { transform: translateX(22px); }
.switch input:focus-visible + .switch-track {
  outline: 3px solid var(--color-ring);
  outline-offset: 3px;
}

/* ---------------------------------------------------- Avatar */
.avatar {
  border-radius: 50%;
  background: var(--color-surface-3);
  object-fit: cover;
  flex: none;
  border: 3px solid var(--color-surface);
  box-shadow: 0 2px 8px rgba(200,16,46,.16);
}
.avatar-xs { width: 28px; height: 28px; border-width: 2px; }
.avatar-sm { width: 40px; height: 40px; }
.avatar-md { width: 56px; height: 56px; }
.avatar-lg { width: 88px; height: 88px; border-width: 4px; }
.avatar-xl { width: 140px; height: 140px; border-width: 5px; }

.avatar-fallback {
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-weight: 700;
  color: var(--wwa-red-deep);
  background: var(--color-surface-3);
}

.avatar-ring { box-shadow: 0 0 0 3px var(--ring-color, var(--color-primary)), 0 2px 8px rgba(200,16,46,.16); }
.avatar-off { filter: grayscale(0.8); opacity: 0.55; }

/* ---------------------------------------------------- Tier row */
.tier-row {
  display: grid;
  grid-template-columns: var(--tier-label-w, 96px) 1fr;
  gap: 0;
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--color-surface);
  border: 2px solid var(--color-border);
  min-height: var(--tier-row-h, 84px);
}
.tier-label {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2px;
  padding: var(--sp-2);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--text-2xl);
  line-height: 1;
  text-align: center;
}
.tier-label .tier-desc {
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 600;
  line-height: 1.2;
}
.tier-drop {
  display: flex;
  flex-wrap: wrap;
  align-content: flex-start;
  gap: var(--sp-2);
  padding: var(--sp-3);
  background: var(--color-surface-2);
  transition: background-color var(--dur-fast) var(--ease-out),
              box-shadow var(--dur-fast) var(--ease-out);
}
.tier-drop:empty::after {
  content: attr(data-empty);
  color: var(--color-muted-fg);
  font-size: var(--text-sm);
  align-self: center;
}

/* ---------------------------------------------------- Item chip */
.item-chip {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  padding: var(--sp-2) var(--sp-4);
  background: var(--color-surface);
  border: 2px solid var(--color-border-strong);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-clay);
  font-weight: 700;
  font-size: var(--text-sm);
  color: var(--color-foreground);
  user-select: none;
  transition: transform var(--dur-fast) var(--ease-spring),
              box-shadow var(--dur-fast) var(--ease-out);
}
/* ไม่มี drag-and-drop ในระบบนี้ — เดิมมี cursor:grab / touch-action:none / .is-dragging
   / .is-selected ค้างไว้ ซึ่ง touch-action:none จะทำให้นิ้วปัดหน้าจอไม่ได้ถ้าเผลอใช้คลาสเปล่า */
.item-chip img { width: 28px; height: 28px; border-radius: var(--radius-xs); object-fit: cover; }

/* ---------------------------------------------------- Bar chart (audience %) */
.bar-track {
  display: flex;
  width: 100%;
  height: var(--bar-h, 34px);
  border-radius: var(--radius-full);
  overflow: hidden;
  background: var(--color-surface-2);
  border: 2px solid var(--color-border);
}
.bar-seg {
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: var(--text-xs);
  min-width: 0;
  transition: flex-basis var(--dur-slow) var(--ease-out);
  overflow: hidden;
}
.bar-seg span { padding: 0 4px; white-space: nowrap; }

.vbar-group {
  display: flex;
  align-items: flex-end;
  gap: var(--sp-2);
  height: var(--vbar-h, 220px);
}
.vbar {
  flex: 1 1 0;
  min-width: 0;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  align-items: center;
  gap: var(--sp-2);
  height: 100%;
}
.vbar-fill {
  width: 100%;
  border-radius: var(--radius-sm) var(--radius-sm) 6px 6px;
  transform-origin: bottom;
  animation: grow-up var(--dur-slow) var(--ease-out) both;
  min-height: 4px;
  position: relative;
}
@keyframes grow-up { from { transform: scaleY(0); } to { transform: scaleY(1); } }
.vbar-value {
  font-weight: 800;
  font-size: var(--text-sm);
  color: var(--wwa-red-deep);
}
.vbar-label {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--text-sm);
}

/* ---------------------------------------------------- Progress ring / meter */
.meter {
  height: 10px;
  border-radius: var(--radius-full);
  background: var(--color-surface-3);
  overflow: hidden;
}
.meter-fill {
  height: 100%;
  border-radius: inherit;
  background: var(--color-primary);
  transition: width var(--dur-slow) var(--ease-out);
}

/* ---------------------------------------------------- Toast */
.toast-wrap {
  position: fixed;
  left: 50%;
  bottom: max(var(--sp-6), env(safe-area-inset-bottom));
  transform: translateX(-50%);
  z-index: var(--z-toast);
  display: flex;
  flex-direction: column;
  gap: var(--sp-2);
  pointer-events: none;
  width: min(92vw, 420px);
}
.toast {
  pointer-events: auto;
  background: var(--wwa-ink);
  color: var(--wwa-white);
  padding: var(--sp-3) var(--sp-5);
  border-radius: var(--radius-full);
  box-shadow: var(--shadow-lift);
  font-weight: 600;
  font-size: var(--text-sm);
  text-align: center;
  animation: toast-in var(--dur) var(--ease-spring) both;
}
.toast.err { background: var(--color-danger); }
.toast.ok { background: var(--color-success); }
@keyframes toast-in {
  from { opacity: 0; transform: translateY(12px) scale(0.96); }
  to { opacity: 1; transform: none; }
}

/* ---------------------------------------------------- Modal */
.modal-scrim {
  position: fixed;
  inset: 0;
  background: rgba(61, 33, 41, 0.5);
  backdrop-filter: blur(3px);
  z-index: var(--z-modal);
  display: grid;
  place-items: center;
  padding: var(--sp-4);
  animation: fade-in var(--dur) var(--ease-out) both;
}
.modal {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lift);
  width: min(96vw, 560px);
  max-height: 88dvh;
  overflow: auto;
  padding: var(--sp-6);
  animation: modal-in var(--dur-slow) var(--ease-spring) both;
}
@keyframes fade-in { from { opacity: 0; } to { opacity: 1; } }
@keyframes modal-in {
  from { opacity: 0; transform: translateY(16px) scale(0.96); }
  to { opacity: 1; transform: none; }
}

/* ---------------------------------------------------- Empty state */
.empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--sp-3);
  padding: var(--sp-10) var(--sp-5);
  text-align: center;
  color: var(--color-muted-fg);
}
.empty svg { opacity: 0.5; }

/* ---------------------------------------------------- Skeleton */
.skeleton {
  background: linear-gradient(90deg, var(--color-surface-2) 25%, var(--color-surface-3) 50%, var(--color-surface-2) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.4s linear infinite;
  border-radius: var(--radius-sm);
}
@keyframes shimmer { to { background-position: -200% 0; } }
@media (prefers-reduced-motion: reduce) {
  .skeleton { animation: none; }
  .vbar-fill { animation: none; }
  .badge-live::before { animation: none; }
  /* แอนิเมชันตอนโผล่ — ปิดให้หมด ไม่ใช่แค่ย่อ duration
     (tokens.css ย่อ --dur เหลือ 1ms ได้ แต่ animation ที่ตั้งเวลาไว้ตรง ๆ ไม่ได้อ่านตัวแปร) */
  .toast,
  .modal-scrim,
  .modal { animation: none; }
}

/* ---------------------------------------------------- Confetti layer */
.fx-layer {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: var(--z-fx);
  overflow: hidden;
}