/* =========================================================
   RED DZAO — COMPONENTS
   Prefix: rd- cho các component để tránh xung đột global
   ========================================================= */

/* ---- Nút bấm ---- */
.rd-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.95rem 1.9rem;
  border-radius: 999px;
  font-size: var(--fs-small);
  letter-spacing: 0.03em;
  font-weight: 600;
  transition: transform var(--dur-fast) ease, background var(--dur-fast) ease, box-shadow var(--dur-fast) ease;
  min-height: 48px;
}

.rd-btn--primary {
  background: var(--accent-primary);
  color: var(--color-ivory-soft);
  box-shadow: var(--shadow-soft);
}
.rd-btn--primary:hover { background: var(--color-red-dark); transform: translateY(-2px); }

.rd-btn--outline {
  border: 1.5px solid currentColor;
  color: inherit;
  background: transparent;
}
.rd-btn--outline:hover { background: rgba(255,255,255,0.08); }

.rd-btn--gold {
  background: var(--accent-secondary);
  color: var(--color-charcoal);
}
.rd-btn--gold:hover { background: var(--color-gold-soft); }

.rd-btn--block { width: 100%; justify-content: center; }

/* ---- Thẻ ảnh placeholder (thay bằng ảnh thật) ---- */
.rd-media {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  aspect-ratio: 4 / 5;
  background: linear-gradient(160deg, var(--color-wood), var(--color-wood-dark));
  isolation: isolate;
}

.rd-media--wide { aspect-ratio: 16 / 10; }
.rd-media--square { aspect-ratio: 1 / 1; }

.rd-media img,
.rd-media svg {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.rd-media__caption {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  padding: 0.6rem 0.9rem;
  font-size: 0.7rem;
  letter-spacing: 0.02em;
  color: var(--color-ivory-soft);
  background: linear-gradient(0deg, rgba(0,0,0,0.55), transparent);
}

/* ---- Sợi chỉ đỏ SVG xuyên section (Red Thread Scroll) ---- */
.rd-thread {
  position: absolute;
  left: 50%;
  top: 0;
  width: 2px;
  height: 100%;
  transform: translateX(-50%);
  z-index: var(--z-thread);
  pointer-events: none;
  display: none;
}
@media (min-width: 768px) { .rd-thread { display: block; } }

.rd-thread path {
  fill: none;
  stroke: var(--color-red);
  stroke-width: 2;
  stroke-linecap: round;
}

/* ---- Thẻ giới thiệu (đèn lồng, thổ cẩm, không gian...) ---- */
.rd-feature-grid {
  display: grid;
  gap: var(--space-md);
  grid-template-columns: 1fr;
}
@media (min-width: 640px) {
  .rd-feature-grid { grid-template-columns: repeat(2, 1fr); }
}

.rd-feature-card {
  opacity: 0;
  transform: translateY(24px) scale(0.98);
  transition: opacity var(--dur-slow) var(--ease-story), transform var(--dur-slow) var(--ease-story);
}
.rd-feature-card.is-visible {
  opacity: 1;
  transform: translateY(0) scale(1);
}

.rd-feature-card__title {
  margin-top: var(--space-xs);
  font-family: var(--font-heading);
  font-size: 1.15rem;
}

/* ---- Chân dung nhân viên (Chapter 03) ---- */
.rd-portrait {
  position: relative;
}

.rd-portrait__coin {
  position: absolute;
  top: -10px;
  right: -10px;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: radial-gradient(circle at 35% 30%, #F1E3BE, var(--color-gold) 70%);
  box-shadow: var(--shadow-soft);
  animation: rd-coin-float 4.5s ease-in-out infinite;
}

@keyframes rd-coin-float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

@media (prefers-reduced-motion: reduce) {
  .rd-portrait__coin { animation: none; }
}

/* ---- Thẻ nguyên liệu / món ăn (Chapter 04) ---- */
.rd-ingredient-card,
.rd-dish-card {
  background: var(--bg-elevated);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-md);
  padding: var(--space-sm);
}

.rd-dish-card {
  scroll-snap-align: start;
}

.rd-dish-card__name {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  margin-top: var(--space-xs);
}

.rd-dish-card__desc {
  font-size: var(--fs-small);
  color: var(--text-muted);
  margin-top: 0.3rem;
}

/* ---- Form đặt bàn ---- */
.rd-form {
  display: grid;
  gap: var(--space-sm);
}

.rd-field {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.rd-field label {
  font-size: var(--fs-small);
  letter-spacing: 0.02em;
  color: var(--color-gold-soft);
}

.rd-field input,
.rd-field textarea,
.rd-field select {
  background: rgba(245,235,221,0.06);
  border: 1px solid var(--border-on-dark);
  border-radius: var(--radius-sm);
  padding: 0.85rem 1rem;
  color: var(--text-on-dark);
  min-height: 48px;
}

.rd-field input::placeholder,
.rd-field textarea::placeholder {
  color: rgba(245,235,221,0.45);
}

.rd-field--row {
  display: grid;
  gap: var(--space-sm);
  grid-template-columns: 1fr;
}
@media (min-width: 560px) {
  .rd-field--row.rd-field--2 { grid-template-columns: 1fr 1fr; }
  .rd-field--row.rd-field--3 { grid-template-columns: 1fr 1fr 1fr; }
}

/* Honeypot ẩn khỏi người dùng thật, vẫn có trong DOM cho bot */
.rd-hp {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.rd-form__status {
  min-height: 1.4rem;
  font-size: var(--fs-small);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.rd-form__status[data-state="loading"] { color: var(--color-gold-soft); }
.rd-form__status[data-state="success"] { color: #8FCB8B; }
.rd-form__status[data-state="error"] { color: #E58C82; }

.rd-form__status[data-state="loading"] .rd-spinner {
  width: 14px; height: 14px;
  border-radius: 50%;
  border: 2px solid currentColor;
  border-top-color: transparent;
  animation: rd-spin 700ms linear infinite;
}
@keyframes rd-spin { to { transform: rotate(360deg); } }
@media (prefers-reduced-motion: reduce) {
  .rd-form__status[data-state="loading"] .rd-spinner { animation: none; }
}

/* ---- Header trên cùng (logo + gọi ngay, hiện khi cuộn lên) ---- */
.rd-topbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: var(--z-nav);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-xs) var(--container-padding-x);
  padding-top: calc(var(--space-xs) + var(--safe-top));
  background: rgba(245, 235, 221, 0.85);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border-soft);
  transform: translateY(-100%);
  transition: transform var(--dur-normal) var(--ease-story);
}
.rd-topbar.is-visible { transform: translateY(0); }

.rd-topbar__logo {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  color: var(--color-red);
}

@media (min-width: 1024px) {
  .rd-topbar { left: var(--sidebar-width); width: calc(100% - var(--sidebar-width)); }
}

/* ---- Chip / badge nhỏ ---- */
.rd-chip {
  display: inline-block;
  padding: 0.3rem 0.75rem;
  border-radius: 999px;
  font-size: 0.72rem;
  border: 1px solid var(--border-soft);
  color: var(--text-muted);
}