/**
 * Wordiary - Main Design System & UI Stylesheet
 */

:root {
  --color-bg: #121213;
  --color-surface: #1a1a1c;
  --color-surface-hover: #262629;
  --color-border-subtle: #272729;
  --color-border: #3a3a3c;
  --color-border-typing: #565758;
  
  --color-correct: #538d4e;
  --color-present: #b59f3b;
  --color-absent: #3a3a3c;
  
  --color-key-bg: #818384;
  --color-key-bg-hover: #969899;
  --color-key-action: #565758;
  
  --color-text: #ffffff;
  --color-text-secondary: #a7a9aa;
  --color-text-inverse: #ffffff;
  
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 14px;
  --radius-full: 9999px;

  --header-height: 60px;
  --max-content-width: 500px;
  --font-stack: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html, body {
  width: 100%;
  height: 100%;
  background-color: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-stack);
  overflow-x: hidden;
  user-select: none;
  -webkit-user-select: none;
  touch-action: manipulation;
}

#app-root {
  display: flex;
  flex-direction: column;
  height: 100dvh;
  max-width: var(--max-content-width);
  margin: 0 auto;
  position: relative;
}

/* ==========================================================================
   Header Styles
   ========================================================================== */

.app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
  padding: 0 12px;
  border-bottom: 1px solid var(--color-border-subtle);
  background-color: var(--color-bg);
  z-index: 10;
  gap: 8px;


}


@media(max-width: 768px) {
    .app-header {
      display: grid;
      grid-template-areas: "buttons1 buttons2" "title title";
    }

    .header-center {
      grid-area: title;
    }

    .header-left {
      grid-area: buttons1;
    }

    .header-right {
          grid-area: buttons2;
    }
  }
  
.header-left, .header-right {
  display: flex;
  align-items: center;
  gap: 6px;
}

.header-center {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.logo-title {
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: 0.15em;
  color: var(--color-text);
  line-height: 1.1;
  text-transform: uppercase;
}

.mode-badge {
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 2px 6px;
  border-radius: var(--radius-full);
}

.badge-daily {
  color: #8ce196;
  background-color: rgba(83, 141, 78, 0.25);
}

.badge-practice {
  color: #ffd666;
  background-color: rgba(181, 159, 59, 0.25);
}

/* Icon Buttons */
.icon-btn {
  background: transparent;
  border: none;
  color: var(--color-text-secondary);
  width: 36px;
  height: 36px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.15s ease;
}

.icon-btn:hover {
  color: var(--color-text);
  background-color: var(--color-surface-hover);
}

.icon-btn:active {
  transform: scale(0.92);
}

/* Mode & Lang Toggle Pills */
.mode-toggle-group, .lang-selector-group {
  display: flex;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  padding: 2px;
  gap: 2px;
}

.mode-pill, .lang-pill {
  background: transparent;
  border: none;
  color: var(--color-text-secondary);
  font-family: inherit;
  font-size: 0.72rem;
  font-weight: 700;
  padding: 4px 8px;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all 0.15s ease;
  line-height: 1;
}

.mode-pill.active, .lang-pill.active {
  background-color: var(--color-border-typing);
  color: var(--color-text);
}

.mode-pill:hover:not(.active), .lang-pill:hover:not(.active) {
  color: var(--color-text);
}

/* Main Board Layout */
.game-play-area {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  align-items: center;
  padding: 12px 8px 16px 8px;
  overflow: hidden;
}

.grid-wrapper {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
}

/* ==========================================================================
   Modals
   ========================================================================== */

.modal-backdrop {
  position: fixed;
  inset: 0;
  background-color: rgba(0, 0, 0, 0.75);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 16px;
  backdrop-filter: blur(4px);
  animation: fadeIn 0.2s ease-out;
}

.modal-card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: 440px;
  max-height: 90vh;
  overflow-y: auto;
  padding: 24px;
  position: relative;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5);
  animation: scaleUp 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

.modal-close-btn {
  position: absolute;
  top: 14px;
  right: 14px;
  background: transparent;
  border: none;
  color: var(--color-text-secondary);
  font-size: 1.3rem;
  width: 32px;
  height: 32px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.15s ease;
}

.modal-close-btn:hover {
  color: var(--color-text);
  background-color: var(--color-surface-hover);
}

.modal-title {
  font-size: 1.25rem;
  font-weight: 800;
  text-align: center;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 20px;
}

/* Stats Overview */
.stats-overview {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
  margin-bottom: 24px;
  text-align: center;
}

.stat-box {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.stat-number {
  font-size: 1.8rem;
  font-weight: 800;
  line-height: 1.1;
  color: var(--color-text);
}

.stat-label {
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--color-text-secondary);
  text-transform: uppercase;
  margin-top: 4px;
  line-height: 1.2;
}

/* Distribution Chart */
.distribution-title {
  font-size: 0.95rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 12px;
}

.guess-chart {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 24px;
}

.chart-row {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  font-weight: 700;
}

.chart-label {
  width: 12px;
  text-align: right;
  color: var(--color-text-secondary);
}

.chart-bar-container {
  flex: 1;
}

.chart-bar {
  background-color: var(--color-border);
  height: 22px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: flex-end;
  padding-right: 8px;
  min-width: 22px;
  transition: width 0.4s ease-out;
}

.highlight-guess .chart-bar {
  background-color: var(--color-correct);
}

.chart-count {
  font-size: 0.8rem;
  font-weight: 700;
  color: #fff;
}

/* Stats Footer */
.stats-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid var(--color-border);
  padding-top: 18px;
  gap: 16px;
}

.countdown-section {
  display: flex;
  flex-direction: column;
  text-align: center;
  flex: 1;
}

.countdown-label {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--color-text-secondary);
  letter-spacing: 0.05em;
}

.countdown-time {
  font-size: 1.4rem;
  font-weight: 800;
  font-variant-numeric: tabular-nums;
  color: var(--color-text);
  margin-top: 2px;
}

.practice-notice {
  font-size: 0.78rem;
  color: var(--color-text-secondary);
  font-style: italic;
  flex: 1;
}

.primary-action-btn {
  background-color: var(--color-correct);
  color: #fff;
  border: none;
  border-radius: var(--radius-md);
  font-family: inherit;
  font-size: 0.95rem;
  font-weight: 700;
  padding: 12px 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  cursor: pointer;
  transition: all 0.15s ease;
  flex: 1;
}

.primary-action-btn:hover {
  background-color: #467942;
  transform: translateY(-1px);
}

.primary-action-btn:active {
  transform: translateY(1px);
}

/* ==========================================================================
   Help Modal Content
   ========================================================================== */

.help-content {
  font-size: 0.9rem;
  line-height: 1.5;
  color: var(--color-text-secondary);
}

.help-lead {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 12px;
}

.help-list {
  padding-left: 18px;
  margin-bottom: 20px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.help-emphasis {
  color: #ffd666;
  font-weight: 600;
}

.examples-heading {
  font-size: 0.95rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--color-text);
  border-top: 1px solid var(--color-border);
  padding-top: 16px;
  margin-bottom: 14px;
}

.example-block {
  margin-bottom: 16px;
}

.example-row {
  display: flex;
  gap: 5px;
  margin-bottom: 8px;
}

.sample-tile {
  width: 36px;
  height: 36px;
  border: 2px solid var(--color-border);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  font-weight: 800;
  color: #fff;
  background-color: var(--color-bg);
}

.sample-tile.tile-correct {
  background-color: var(--color-correct);
  border-color: var(--color-correct);
}

.sample-tile.tile-present {
  background-color: var(--color-present);
  border-color: var(--color-present);
}

.sample-tile.tile-absent {
  background-color: var(--color-absent);
  border-color: var(--color-absent);
}

.example-desc {
  font-size: 0.85rem;
  line-height: 1.4;
}

.example-desc strong {
  color: #fff;
}

/* ==========================================================================
   Toasts
   ========================================================================== */

.toast-container {
  position: fixed;
  top: 72px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2000;
  pointer-events: none;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.toast-item {
  background-color: #ffffff;
  color: #121213;
  font-size: 0.88rem;
  font-weight: 700;
  padding: 10px 18px;
  border-radius: var(--radius-md);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
  opacity: 0;
  transform: translateY(-8px) scale(0.96);
  transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  white-space: nowrap;
}

.toast-item.visible {
  opacity: 1;
  transform: translateY(0) scale(1);
}

.toast-item.fade-out {
  opacity: 0;
  transform: translateY(-4px) scale(0.96);
}

/* Animations */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes scaleUp {
  from { opacity: 0; transform: scale(0.94); }
  to { opacity: 1; transform: scale(1); }
}