/* === Idiom Wordle — ink & brush aesthetic === */

.idiom-wordle-page {
  --idiom-frame-width: 920px;
  /* warm palette */
  --ink: #1a1510;
  --ink-light: #2c261e;
  --paper: #f5f0e8;
  --paper-dim: #e8e0d2;
  --paper-dark: #d6cdbf;
  --page-bg: #ede6da;
  --vermilion: #c53d2e;
  --vermilion-soft: rgba(197, 61, 46, 0.12);
  --gold: #b8860b;
  --gold-soft: rgba(184, 134, 11, 0.15);
  --ink-text: #2c2418;
  --ink-muted: #5c523f;
  --exact-bg: #2d8544;
  --exact-fg: #fff;
  --present-bg: #c89b18;
  --present-fg: #1a1510;
  --absent-bg: #a89c8a;
  --absent-fg: #f5f0e8;
}

/* === Override global dark theme for this page === */
.idiom-wordle-page {
  background: var(--page-bg);
  color: var(--ink-text);
}

.idiom-wordle-page .page-shell {
  background: transparent;
}

/* Header — warm tint */
.idiom-wordle-page .site-header {
  background: var(--paper-dim);
  border-bottom: 1px solid rgba(140, 120, 90, 0.15);
}

.idiom-wordle-page .site-brand {
  color: var(--ink-text);
}

/* Footer — warm tint */
.idiom-wordle-page .site-footer {
  background: var(--paper-dark);
  color: var(--ink-text);
  border-top: 1px solid rgba(140, 120, 90, 0.15);
}

.idiom-wordle-page .footer-title {
  color: var(--ink-text);
}

.idiom-wordle-page .footer-copy {
  color: #3e3628;
}

.idiom-wordle-page .site-nav a {
  color: var(--ink-muted);
}

.idiom-wordle-page .site-nav a:hover {
  color: var(--ink-text);
}

/* Title & subtitle */
.idiom-wordle-page .page-title {
  color: var(--ink-text);
}

.idiom-wordle-page .page-subtitle {
  color: #4a4030;
}

/* Tool discovery section */
.idiom-wordle-page .tool-discovery {
  color: var(--ink-text);
}

.idiom-wordle-page .tool-discovery .card {
  background: var(--paper);
  border-color: rgba(140, 120, 90, 0.2);
  color: var(--ink-text);
}

.idiom-wordle-page .tool-discovery .card-eyebrow {
  color: var(--ink-muted);
}

.idiom-wordle-page .tool-discovery .card-title {
  color: var(--ink-text);
}

.idiom-wordle-page .tool-discovery .card-text {
  color: var(--ink-muted);
}

.idiom-wordle-page .tool-discovery .card-link {
  color: var(--vermilion);
}

.idiom-wordle-page .tool-discovery__title {
  color: var(--ink-text);
}

.idiom-wordle-page .tool-discovery dt {
  color: var(--ink-text);
}

.idiom-wordle-page .tool-discovery dd {
  color: var(--ink-muted);
}

.idiom-wordle-page .tool-discovery li {
  color: var(--ink-text);
}

.idiom-wordle-page .tool-discovery__subheading {
  color: var(--ink-muted);
}

.idiom-wordle-page .tool-discovery__search-note {
  color: var(--ink-muted);
}

/* Global buttons override for this page */
.idiom-wordle-page .button-primary {
  background: var(--vermilion);
  border-color: var(--vermilion);
  color: #fff;
}

.idiom-wordle-page .button-primary:hover {
  background: #a8321f;
}

.idiom-wordle-page .button-secondary {
  background: rgba(255, 255, 255, 0.5);
  border-color: rgba(140, 120, 90, 0.3);
  color: var(--ink-text);
}

.idiom-wordle-page .button-secondary:hover {
  background: rgba(255, 255, 255, 0.75);
}

.idiom-wordle-page .tool-frame {
  max-width: var(--idiom-frame-width);
}

.idiom-wordle-page .tool-header-block {
  max-width: 28rem;
}

.idiom-wordle-page .page-subtitle {
  max-width: 26rem;
}

.idiom-ui {
  display: block;
}

/* --- Cabinet — scroll/parchment --- */
.idiom-cabinet {
  position: relative;
  display: grid;
  gap: 0.75rem;
  padding: clamp(0.8rem, 2vw, 1.1rem);
  border-radius: var(--radius-lg);
  border: 1px solid rgba(180, 160, 130, 0.35);
  background:
    radial-gradient(ellipse at 15% -5%, rgba(197, 61, 46, 0.05), transparent 40%),
    radial-gradient(ellipse at 85% 105%, rgba(184, 134, 11, 0.05), transparent 40%),
    linear-gradient(180deg, var(--paper), var(--paper-dim));
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.5) inset,
    0 20px 50px rgba(30, 20, 10, 0.12),
    0 0 0 4px rgba(180, 160, 130, 0.08);
  /* Subtle paper texture via noise */
  background-image:
    radial-gradient(ellipse at 15% -5%, rgba(197, 61, 46, 0.05), transparent 40%),
    radial-gradient(ellipse at 85% 105%, rgba(184, 134, 11, 0.05), transparent 40%),
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='4' height='4'%3E%3Crect width='4' height='4' fill='%23f5f0e8'/%3E%3Crect x='1' y='1' width='1' height='1' fill='%23ede6da' opacity='0.4'/%3E%3C/svg%3E");
}

/* Decorative seal stamp — top right corner */
.idiom-cabinet::after {
  content: "成";
  position: absolute;
  top: 0.5rem;
  right: 0.5rem;
  width: 2rem;
  height: 2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
  font-weight: 900;
  color: var(--vermilion);
  border: 2px solid var(--vermilion);
  border-radius: 3px;
  opacity: 0.2;
  transform: rotate(-8deg);
  pointer-events: none;
}

/* --- HUD bar --- */
.idiom-hud {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  align-items: center;
}

.idiom-chip {
  display: inline-flex;
  align-items: center;
  min-height: 1.6rem;
  padding: 0.15rem 0.6rem;
  border-radius: 999px;
  border: 1px solid rgba(140, 120, 90, 0.25);
  background: rgba(255, 255, 255, 0.5);
  color: var(--ink-text);
  font-size: 0.78rem;
  font-weight: 500;
}

.idiom-hud__button {
  min-height: 0;
  padding: 0.25rem 0.7rem;
  font-size: 0.78rem;
  border-color: rgba(140, 120, 90, 0.3);
  color: var(--ink-text);
  background: rgba(255, 255, 255, 0.45);
}

.idiom-hud__button:hover {
  background: rgba(255, 255, 255, 0.7);
}

.idiom-hud__mode {
  border-color: var(--vermilion);
  color: var(--vermilion);
  background: var(--vermilion-soft);
}

.idiom-hud__mode:hover {
  background: rgba(197, 61, 46, 0.2);
}

.idiom-hud__lang {
  margin-left: auto;
}

/* --- Stage (two-column layout) --- */
.idiom-stage {
  display: grid;
  grid-template-columns: minmax(0, 18rem) minmax(13rem, 16rem);
  justify-content: center;
  gap: 0.85rem;
  align-items: start;
}

.idiom-main {
  display: grid;
  gap: 0.75rem;
  width: min(100%, 18rem);
}

/* --- Board --- */
.idiom-board-frame {
  padding: 0.45rem;
  border-radius: var(--radius-md);
  background: rgba(0, 0, 0, 0.04);
  border: 1px solid rgba(140, 120, 90, 0.12);
}

.idiom-board {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.35rem;
}

.idiom-tile {
  aspect-ratio: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 4px;
  border: 2px solid rgba(140, 120, 90, 0.25);
  background: rgba(255, 255, 255, 0.7);
  color: var(--ink-text);
  font-size: clamp(1.3rem, 3.8vw, 1.7rem);
  font-weight: 800;
  user-select: none;
  /* perspective for flip */
  perspective: 300px;
  transition: border-color 0.15s ease;
}

/* Tile inner — handles the flip */
.idiom-tile[data-state="exact"],
.idiom-tile[data-state="present"],
.idiom-tile[data-state="absent"] {
  animation: idiom-flip 0.45s ease;
}

.idiom-tile[data-state="exact"] {
  background: var(--exact-bg);
  border-color: var(--exact-bg);
  color: var(--exact-fg);
  box-shadow: 0 2px 8px rgba(45, 133, 68, 0.25);
}

.idiom-tile[data-state="present"] {
  background: var(--present-bg);
  border-color: var(--present-bg);
  color: var(--present-fg);
  box-shadow: 0 2px 8px rgba(200, 155, 24, 0.25);
}

.idiom-tile[data-state="absent"] {
  background: var(--absent-bg);
  border-color: var(--absent-bg);
  color: var(--absent-fg);
}

.idiom-tile[data-state="empty"] {
  background: rgba(255, 255, 255, 0.7);
  border-color: rgba(140, 120, 90, 0.25);
}

/* Current row typing — ink border pulse */
.idiom-tile[data-state="empty"]:not(:empty) {
  border-color: var(--ink-text);
  background: rgba(255, 255, 255, 0.9);
  box-shadow: 0 0 0 1px rgba(44, 36, 24, 0.08);
}

@keyframes idiom-flip {
  0% { transform: rotateX(0); }
  45% { transform: rotateX(90deg); }
  55% { transform: rotateX(90deg); }
  100% { transform: rotateX(0); }
}

.idiom-tile--celebrate {
  animation: idiom-celebrate 0.6s ease;
}

@keyframes idiom-celebrate {
  0%, 100% { transform: translateY(0) scale(1); }
  30% { transform: translateY(-8px) scale(1.08); }
  60% { transform: translateY(-3px) scale(1.03); }
}

.idiom-tile--shake {
  animation: idiom-shake 0.35s ease;
}

@keyframes idiom-shake {
  0%, 100% { transform: translateX(0); }
  20% { transform: translateX(-5px); }
  40% { transform: translateX(5px); }
  60% { transform: translateX(-3px); }
  80% { transform: translateX(3px); }
}

/* --- Input area --- */
.idiom-input-area {
  display: grid;
  gap: 0.55rem;
}

.idiom-preview {
  display: flex;
  gap: 0.35rem;
  justify-content: center;
}

.idiom-preview__cell {
  width: 2.6rem;
  height: 2.6rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 5px;
  border: 1.5px dashed rgba(140, 120, 90, 0.3);
  background: rgba(255, 255, 255, 0.5);
  color: var(--ink-text);
  font-size: 1.1rem;
  font-weight: 700;
}

.idiom-text-input {
  width: 100%;
  padding: 0.5rem 0.7rem;
  border-radius: 8px;
  border: 1.5px solid rgba(140, 120, 90, 0.3);
  background: rgba(255, 255, 255, 0.8);
  color: var(--ink-text);
  font-size: 1.05rem;
  text-align: center;
  outline: none;
  transition: border-color var(--transition-fast);
}

.idiom-text-input:focus {
  border-color: var(--vermilion);
  box-shadow: 0 0 0 2px var(--vermilion-soft);
}

.idiom-text-input:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.idiom-actions {
  display: flex;
  gap: 0.4rem;
  justify-content: center;
  flex-wrap: wrap;
}

.idiom-actions .button {
  min-height: 0;
  padding: 0.4rem 0.9rem;
  font-size: 0.84rem;
  border-color: rgba(140, 120, 90, 0.3);
  color: var(--ink-text);
  background: rgba(255, 255, 255, 0.5);
}

.idiom-actions .button:hover {
  background: rgba(255, 255, 255, 0.8);
}

.idiom-actions .button-primary {
  background: var(--vermilion);
  border-color: var(--vermilion);
  color: #fff;
  font-weight: 700;
  letter-spacing: 0.1em;
  box-shadow: 0 2px 6px rgba(197, 61, 46, 0.2);
}

.idiom-actions .button-primary:hover {
  background: #a8321f;
  box-shadow: 0 3px 10px rgba(197, 61, 46, 0.3);
}

.idiom-actions .button-primary:active {
  transform: scale(0.97);
}

/* --- Color legend --- */
.idiom-legend {
  display: flex;
  gap: 0.6rem;
  justify-content: center;
  flex-wrap: wrap;
  font-size: 0.72rem;
  color: var(--ink-muted);
}

.idiom-legend__item {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
}

.idiom-legend__swatch {
  width: 0.9rem;
  height: 0.9rem;
  border-radius: 3px;
  display: inline-block;
}

.idiom-legend__swatch--exact { background: var(--exact-bg); }
.idiom-legend__swatch--present { background: var(--present-bg); }
.idiom-legend__swatch--absent { background: var(--absent-bg); }

/* --- Sidecar --- */
.idiom-sidecar {
  display: grid;
  gap: 0.55rem;
  padding: 0.7rem;
  border-radius: var(--radius-md);
  border: 1px solid rgba(140, 120, 90, 0.2);
  background: rgba(255, 255, 255, 0.35);
  max-width: 16rem;
}

.idiom-statcard {
  padding: 0.4rem 0.6rem;
  border-radius: 8px;
  border: 1px solid rgba(140, 120, 90, 0.15);
  background: rgba(255, 255, 255, 0.5);
}

.idiom-statcard__label {
  display: block;
  margin-bottom: 0.1rem;
  color: var(--ink-text);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.idiom-statcard__value {
  color: var(--ink-text);
  font-size: 0.88rem;
  line-height: 1.2;
  font-weight: 600;
}

/* --- Hint display --- */
.idiom-hint-display {
  display: none;
  padding: 0.5rem 0.7rem;
  border-radius: 8px;
  border: 1px solid rgba(184, 134, 11, 0.3);
  background: var(--gold-soft);
}

.idiom-hint-display:not([hidden]) {
  display: block;
}

.idiom-hint-display__text {
  color: #6b5a10;
  font-size: 0.82rem;
  line-height: 1.4;
}

/* --- Feedback --- */
.idiom-feedback {
  display: none;
  padding: 0.4rem 0.6rem;
  border-radius: 8px;
  background: var(--vermilion-soft);
  border: 1px solid rgba(197, 61, 46, 0.25);
  color: var(--vermilion);
  font-size: 0.82rem;
  text-align: center;
}

.idiom-feedback:not([hidden]) {
  display: block;
}

/* --- Stats grid --- */
.idiom-stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.35rem;
}

.idiom-stat-box {
  padding: 0.4rem 0.25rem;
  border-radius: 6px;
  border: 1px solid rgba(140, 120, 90, 0.12);
  background: rgba(255, 255, 255, 0.4);
  text-align: center;
}

.idiom-stat-box__label {
  color: var(--ink-muted);
  font-size: 0.58rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.idiom-stat-box__value {
  color: var(--ink-text);
  font-size: 0.9rem;
  font-weight: 700;
  margin-top: 0.05rem;
}

/* --- Used characters --- */
.idiom-used-chars { display: none; }
.idiom-used-chars:not([hidden]) { display: block; }

.idiom-used-chars__label {
  color: var(--ink-muted);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 0.35rem;
}

.idiom-used-chars__grid {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem;
}

.idiom-used-char {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.8rem;
  height: 1.8rem;
  border-radius: 4px;
  border: 1px solid rgba(140, 120, 90, 0.2);
  font-size: 0.8rem;
  font-weight: 700;
  background: rgba(255, 255, 255, 0.5);
  color: var(--ink-text);
}

.idiom-used-char[data-state="exact"] {
  background: var(--exact-bg); border-color: var(--exact-bg); color: var(--exact-fg);
}
.idiom-used-char[data-state="present"] {
  background: var(--present-bg); border-color: var(--present-bg); color: var(--present-fg);
}
.idiom-used-char[data-state="absent"] {
  background: var(--absent-bg); border-color: var(--absent-bg); color: var(--absent-fg);
}

/* --- Result overlay --- */
.idiom-result-layer {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 40;
  background: rgba(26, 21, 16, 0.5);
  align-items: center;
  justify-content: center;
  padding: 1rem;
}

.idiom-result-layer:not([hidden]) { display: flex; }

.idiom-result-card {
  position: relative;
  width: 100%;
  max-width: 21rem;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(180, 160, 130, 0.35);
  background:
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='4' height='4'%3E%3Crect width='4' height='4' fill='%23f5f0e8'/%3E%3Crect x='1' y='1' width='1' height='1' fill='%23ede6da' opacity='0.4'/%3E%3C/svg%3E"),
    linear-gradient(180deg, var(--paper), var(--paper-dim));
  padding: 1.6rem 1.4rem;
  text-align: center;
  box-shadow: 0 24px 60px rgba(30, 20, 10, 0.25), 0 0 0 4px rgba(180, 160, 130, 0.08);
  animation: idiom-result-in 0.35s ease;
}

@keyframes idiom-result-in {
  from { opacity: 0; transform: scale(0.92) translateY(12px); }
  to { opacity: 1; transform: scale(1) translateY(0); }
}

.idiom-result-card__close {
  position: absolute;
  top: 0.6rem;
  right: 0.6rem;
  width: 2rem;
  height: 2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border: none;
  background: transparent;
  color: var(--ink-muted);
  font-size: 1.4rem;
  cursor: pointer;
  border-radius: 50%;
  transition: background 0.15s ease;
}

.idiom-result-card__close:hover {
  background: rgba(0, 0, 0, 0.06);
  color: var(--ink-text);
}

.idiom-result-card__emoji { font-size: 2.4rem; margin-bottom: 0.4rem; }

.idiom-result-card__title {
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--ink-text);
  margin: 0 0 0.2rem;
  letter-spacing: 0.05em;
}

.idiom-result-card__answer {
  font-size: 1rem;
  color: var(--vermilion);
  font-weight: 700;
  margin: 0 0 0.8rem;
  letter-spacing: 0.15em;
}

.idiom-result-card__grid {
  font-family: monospace;
  font-size: 0.82rem;
  line-height: 1.5;
  color: var(--ink-muted);
  margin-bottom: 0.8rem;
  white-space: pre-line;
}

.idiom-result-card__distribution { margin-bottom: 0.8rem; }

.idiom-dist-title {
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--ink-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 0.4rem;
}

.idiom-dist-row {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  margin-bottom: 0.25rem;
  font-size: 0.72rem;
  color: var(--ink-muted);
}

.idiom-dist-row__label { width: 0.9rem; text-align: right; }
.idiom-dist-row__bar-bg { flex: 1; height: 1rem; border-radius: 999px; background: rgba(0, 0, 0, 0.06); overflow: hidden; }
.idiom-dist-row__bar { height: 100%; border-radius: 999px; background: var(--vermilion); opacity: 0.7; transition: width var(--transition-base); }
.idiom-dist-row__count { width: 1.3rem; text-align: right; }

.idiom-result-card__actions { display: flex; gap: 0.4rem; justify-content: center; }
.idiom-result-card__actions .button {
  min-height: 0;
  padding: 0.45rem 1.1rem;
  font-size: 0.85rem;
}

/* --- Toast --- */
.idiom-toast {
  position: fixed;
  bottom: 1.5rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 50;
  border-radius: 999px;
  border: 1px solid rgba(180, 160, 130, 0.3);
  background: var(--paper);
  padding: 0.45rem 0.9rem;
  font-size: 0.82rem;
  color: var(--ink-text);
  box-shadow: 0 8px 20px rgba(30, 20, 10, 0.2);
  animation: idiom-toast-in 0.3s ease;
}

@keyframes idiom-toast-in {
  from { opacity: 0; transform: translateX(-50%) translateY(8px); }
  to { opacity: 1; transform: translateX(-50%) translateY(0); }
}

/* --- Responsive --- */
@media (max-width: 700px) {
  .idiom-stage {
    grid-template-columns: 1fr;
  }

  .idiom-main {
    width: 100%;
    max-width: 17rem;
    margin: 0 auto;
  }

  .idiom-sidecar {
    max-width: 100%;
  }

  /* Hide preview on mobile — board shows current input already */
  .idiom-preview {
    display: none;
  }

  .idiom-board {
    gap: 0.25rem;
  }

  .idiom-tile {
    font-size: clamp(1.1rem, 5vw, 1.4rem);
  }

  .idiom-cabinet {
    padding: 0.6rem;
    gap: 0.5rem;
  }

  .idiom-input-area {
    gap: 0.4rem;
  }

  .idiom-text-input {
    padding: 0.4rem 0.6rem;
    font-size: 0.95rem;
  }

  .idiom-hud {
    gap: 0.3rem;
  }

  .idiom-chip {
    padding: 0.1rem 0.5rem;
    font-size: 0.72rem;
    min-height: 1.4rem;
  }

  .idiom-hud__button {
    padding: 0.2rem 0.55rem;
    font-size: 0.72rem;
  }
}

@media (max-width: 380px) {
  .idiom-tile {
    font-size: 1rem;
  }

  .idiom-cabinet {
    padding: 0.5rem;
  }

  .idiom-actions .button {
    padding: 0.35rem 0.7rem;
    font-size: 0.78rem;
  }
}