/* =========================================================
   TRẢI BÀI — bố cục và hiệu ứng
   ========================================================= */
.spread-tabs {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: .5rem;
  margin-top: clamp(1.4rem, 2.5vw, 2.2rem);
}
.spread-tabs a {
  padding: .55em 1.25em;
  border: 1px solid var(--line-soft);
  border-radius: 999px;
  color: var(--muted);
  font-size: var(--fs-xs);
  letter-spacing: .14em;
  text-transform: uppercase;
  transition: color var(--dur), border-color var(--dur), background var(--dur);
}
.spread-tabs a:hover { color: var(--ivory); border-color: var(--gold-soft); }
.spread-tabs a[aria-current="page"] {
  color: var(--ivory);
  border-color: rgba(180, 64, 47, .6);
  background: rgba(111, 32, 24, .28);
}

.reading {
  --card-w: clamp(7.2rem, 15vw, 12.5rem);
  display: grid;
  gap: 1.2rem;
  padding-top: clamp(1rem, 2vw, 2rem);
}
.reading[data-spread="5"] { --card-w: clamp(5.8rem, 11.2vw, 9.4rem); }
.reading[data-spread="free"] { --card-w: clamp(5.6rem, 10.8vw, 8.8rem); }

.reading__toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: .8rem 1rem;
}
.sound-toggle {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  min-height: 2.6rem;
  padding: .45rem 1rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--gold-soft);
  font-size: var(--fs-xs);
  letter-spacing: .12em;
  text-transform: uppercase;
  transition: color var(--dur), border-color var(--dur), background var(--dur);
}
.sound-toggle:hover { color: var(--ivory); border-color: var(--gold-soft); background: rgba(111, 32, 24, .18); }
.sound-toggle svg { width: 1.05rem; height: 1.05rem; }
.sound-toggle[aria-pressed="false"] { color: var(--gold-dim); }

.reading__hint {
  min-height: 1.7em;
  color: var(--gold-soft);
  font-size: var(--fs-sm);
  text-align: center;
  transition: opacity var(--dur);
}
.reading__reminder {
  color: color-mix(in srgb, #d96a53, #fff 18%);
  font-size: var(--fs-xs);
  letter-spacing: .08em;
  text-align: center;
}

.reading__stage {
  position: relative;
  display: grid;
  place-items: center;
  min-height: calc(var(--card-w) * 1.397 + 9rem);
  padding-block: 1.5rem 2.5rem;
}
.reading__stage.is-dealing .slot__card { pointer-events: none; }

.reading__deck {
  position: absolute;
  top: 50%;
  left: 50%;
  width: var(--card-w);
  aspect-ratio: var(--card-aspect);
  translate: -50% -60%;
  z-index: 8;
  pointer-events: none;
  transition: opacity .35s ease, visibility 0s linear .35s;
}
.reading__deck.is-hidden { opacity: 0; visibility: hidden; }
.reading__deck .deck-card {
  position: absolute;
  inset: 0;
  transform-origin: 50% 92%;
}
.reading__deck .deck-card:nth-child(1) { transform: rotate(-7deg) translate(-5%, 3%); }
.reading__deck .deck-card:nth-child(2) { transform: rotate(-4deg) translate(-3%, 2%); }
.reading__deck .deck-card:nth-child(3) { transform: rotate(-2deg) translate(-1.5%, 1%); }
.reading__deck .deck-card:nth-child(4) { transform: rotate(1deg); }
.reading__deck .deck-card:nth-child(5) { transform: rotate(3deg) translate(1.5%, 1%); }
.reading__deck .deck-card:nth-child(6) { transform: rotate(5deg) translate(3%, 2%); }
.reading__deck .deck-card:nth-child(7) { transform: rotate(7deg) translate(5%, 3%); }
.reading__deck .card { --tilt-x: 0deg; --tilt-y: 0deg; }

.reading__slots {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  justify-content: center;
  gap: clamp(1.4rem, 3vw, 2.6rem) clamp(.9rem, 2.2vw, 2rem);
  width: 100%;
  list-style: none;
  padding: 0;
}
.slot {
  width: var(--card-w);
  display: grid;
  align-content: start;
  gap: .9rem;
  text-align: center;
}
.slot__card {
  position: relative;
  display: block;
  width: 100%;
  padding: 0;
  border-radius: var(--radius);
  cursor: pointer;
  opacity: 0;
  transition: opacity .25s ease;
}
.slot[data-state="dealing"] .slot__card { opacity: 1; pointer-events: none; }
.slot[data-state="ready"] .slot__card,
.slot[data-state="revealed"] .slot__card { opacity: 1; }
.slot[data-state="revealed"] .slot__card { cursor: default; }
.slot[data-state="ready"] .card__tilt {
  animation: slot-invite 2.6s ease-in-out infinite;
}
@keyframes slot-invite {
  0%, 100% { box-shadow: var(--shadow-card); }
  50% { box-shadow: 0 0 32px 3px rgba(191, 65, 40, .38); }
}
.slot[data-state="empty"] .slot__card {
  opacity: 1;
  cursor: default;
  aspect-ratio: var(--card-aspect);
  border: 1px dashed rgba(217, 189, 146, .25);
  border-radius: var(--radius);
  background:
    radial-gradient(circle at 50% 45%, rgba(217, 189, 146, .06), transparent 55%),
    rgba(10, 7, 7, .35);
}
.slot[data-state="empty"] .slot__card::after {
  content: '—';
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  color: var(--gold-dim);
  font-family: var(--font-display);
  font-size: 1.6rem;
}
.slot__info { display: grid; gap: .18rem; line-height: 1.45; }
.slot__pos {
  color: var(--gold-soft);
  font-size: var(--fs-xs);
  letter-spacing: .18em;
  text-transform: uppercase;
}
.slot__name {
  font-family: var(--font-display);
  color: var(--ivory);
  font-size: clamp(1rem, .8rem + .65vw, 1.35rem);
  line-height: 1.2;
}
.slot__vi {
  color: var(--gold-dim);
  font-size: var(--fs-xs);
  letter-spacing: .06em;
}
.slot__more {
  display: grid;
  grid-template-rows: 0fr;
  opacity: 0;
  transition: grid-template-rows .55s var(--ease), opacity .35s ease;
}
.slot__more > div { min-height: 0; overflow: hidden; }
.slot[data-state="revealed"] .slot__more {
  grid-template-rows: 1fr;
  opacity: 1;
  transition-delay: .15s, .25s;
}
.slot__summary {
  margin-top: .5rem;
  color: var(--muted);
  font-size: var(--fs-xs);
  line-height: 1.6;
}
.slot__link {
  display: inline-block;
  margin-top: .4rem;
  color: var(--gold-soft);
  font-size: var(--fs-xs);
  letter-spacing: .08em;
  text-transform: uppercase;
}
.slot__link:hover { color: var(--gold); }

/* ---------- kết quả ---------- */
.reading__result {
  width: 100%;
  max-width: 56rem;
  margin: clamp(2rem, 4vw, 3.4rem) auto 0;
  scroll-margin-top: 7rem;
}
.reading__result-inner {
  display: grid;
  gap: 1.2rem;
  padding: clamp(1.4rem, 3vw, 2.6rem);
  border: 1px solid var(--line);
  border-radius: var(--radius-panel);
  background:
    radial-gradient(70% 55% at 50% 0%, rgba(111, 32, 24, .22), transparent 70%),
    rgba(12, 8, 8, .72);
  animation: reading-in .7s var(--ease) both;
}
@keyframes reading-in {
  from { opacity: 0; transform: translateY(16px); }
}
.reading__label {
  color: var(--gold-dim);
  font-size: var(--fs-xs);
  letter-spacing: .22em;
  text-transform: uppercase;
  text-align: center;
}
.reading__title {
  font-size: clamp(1.5rem, 1.2rem + .9vw, 2.1rem);
  text-align: center;
  color: var(--ivory);
}
.reading__title em { color: var(--gold); font-style: italic; }
.reading__story {
  color: var(--text);
  font-family: var(--font-display);
  font-size: clamp(1.15rem, 1rem + .55vw, 1.45rem);
  line-height: 1.8;
  text-align: center;
}
.reading__tone {
  color: var(--muted);
  font-size: var(--fs-sm);
  text-align: center;
  max-width: 42rem;
  margin-inline: auto;
}
.reading__thumbs {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: .65rem;
  list-style: none;
  padding: .4rem 0 0;
}
.reading__thumbs a {
  display: grid;
  justify-items: center;
  gap: .35rem;
  width: clamp(3.4rem, 7vw, 4.4rem);
  color: var(--gold-soft);
  font-size: var(--fs-xs);
  text-align: center;
  transition: color var(--dur), transform var(--dur);
}
.reading__thumbs a:hover { color: var(--gold); transform: translateY(-3px); }
.reading__thumbs .mini-card { width: 100%; }
.reading__actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: .7rem;
  padding-top: .3rem;
}
.reading__share {
  padding: .55em 1.2em;
  border: 1px solid var(--gold-dim);
  border-radius: 999px;
  color: var(--gold);
  font: inherit;
  font-size: var(--fs-sm);
  letter-spacing: .08em;
  transition: color var(--dur), border-color var(--dur);
}
.reading__share:hover { color: var(--ivory); border-color: var(--gold); }
.reading__more summary {
  width: fit-content;
  margin-inline: auto;
  color: var(--gold-soft);
  font-size: var(--fs-sm);
  letter-spacing: .08em;
  text-transform: uppercase;
  cursor: pointer;
}
.reading__more summary:hover { color: var(--gold); }
.reading__list {
  display: grid;
  gap: .9rem;
  margin-top: 1.2rem;
  list-style: none;
}
.reading__row {
  display: grid;
  gap: .2rem;
  padding-top: .8rem;
  border-top: 1px solid var(--line-soft);
}
.reading__row:first-child { border-top: 0; padding-top: 0; }
.reading__row-label {
  color: var(--gold-soft);
  font-size: var(--fs-xs);
  letter-spacing: .12em;
  text-transform: uppercase;
}
.reading__row-text {
  color: var(--muted);
  font-size: var(--fs-sm);
  line-height: 1.75;
}
.reading__src {
  margin-left: .45rem;
  padding: .05em .55em;
  border: 1px solid var(--line);
  border-radius: 4px;
  color: var(--gold-dim);
  font-size: .68rem;
  letter-spacing: .06em;
  white-space: nowrap;
}

/* ---------- chọn bài tự do ---------- */
.free-picker {
  display: grid;
  justify-items: center;
  gap: .9rem;
  margin-top: 1rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--line-soft);
}
.free-picker__title {
  color: var(--gold-soft);
  font-size: var(--fs-xs);
  letter-spacing: .16em;
  text-transform: uppercase;
}
.free-fan {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: .4rem;
  max-width: 52rem;
  padding: .4rem;
}
.pick-card {
  position: relative;
  width: clamp(1.65rem, 3vw, 2.45rem);
  aspect-ratio: var(--card-aspect);
  border: 1px solid rgba(217, 189, 146, .32);
  border-radius: 4px;
  background:
    radial-gradient(circle at 50% 38%, rgba(217, 189, 146, .16), transparent 45%),
    repeating-linear-gradient(45deg, rgba(217, 189, 146, .05) 0 1px, transparent 1px 7px),
    linear-gradient(160deg, #241411, #0b0707);
  box-shadow: 0 3px 10px rgba(0, 0, 0, .5);
  cursor: pointer;
  transition: transform .25s var(--ease), border-color .25s, opacity .3s;
}
.pick-card::before {
  content: '';
  position: absolute;
  inset: 20%;
  border: 1px solid rgba(217, 189, 146, .35);
  border-radius: 50%;
}
.pick-card::after {
  content: '';
  position: absolute;
  inset: 41% 35%;
  border-radius: 50%;
  box-shadow: 0 0 8px rgba(180, 64, 47, .65);
  background: rgba(217, 189, 146, .5);
}
.pick-card:hover,
.pick-card:focus-visible { transform: translateY(-5px) scale(1.06); border-color: var(--gold); }
.pick-card.is-used { opacity: .15; pointer-events: none; transform: none; }
.free-picker.is-disabled .pick-card { opacity: .2; pointer-events: none; }

/* ---------- hướng dẫn kiểu trải ---------- */
.spread-guide { display: grid; gap: 1rem; max-width: 60rem; margin-inline: auto; }
.spread-guide h2 { text-align: center; }
.spread-guide > p { color: var(--muted); text-align: center; }
.guide-positions {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
  margin-top: 1rem;
}
.guide-positions--five { grid-template-columns: repeat(5, minmax(0, 1fr)); }
.guide-position {
  display: grid;
  gap: .45rem;
  align-content: start;
  padding: 1.2rem;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  background: rgba(12, 8, 8, .5);
  text-align: left;
}
.guide-position__num {
  font-family: var(--font-display);
  font-size: 1.5rem;
  color: var(--gold-dim);
  line-height: 1;
}
.guide-position h3 { font-size: 1rem; color: var(--gold); font-family: var(--font-body); }
.guide-position p { color: var(--muted); font-size: var(--fs-xs); line-height: 1.65; }
.spread-next {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: .7rem;
  margin-top: 1.4rem;
}

@media (max-width: 900px) {
  .reading[data-spread="3"] { --card-w: clamp(6.4rem, 22vw, 9.5rem); }
  .reading[data-spread="5"] { --card-w: clamp(5.4rem, 17vw, 7.5rem); }
  .reading[data-spread="free"] { --card-w: clamp(5.2rem, 16vw, 7.2rem); }
  .guide-positions--five { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}
@media (max-width: 640px) {
  .reading__slots { gap: 1.5rem .55rem; }
  .reading[data-spread="5"] { --card-w: clamp(5rem, 26vw, 6.4rem); }
  .reading[data-spread="3"] { --card-w: clamp(4.8rem, 26vw, 7.4rem); }
  .reading[data-spread="free"] { --card-w: clamp(4.8rem, 28vw, 6.2rem); }
  .slot__summary { display: none; }
  .free-fan { gap: .4rem; max-width: 100%; }
  .pick-card { width: clamp(2rem, 9vw, 2.4rem); }
  .guide-positions,
  .guide-positions--five { grid-template-columns: 1fr 1fr; }
}
@media (prefers-reduced-motion: reduce) {
  .slot[data-state="ready"] .card__tilt { animation: none; }
  .reading__result-inner { animation: none; }
}