/* ═══════════════════════════════════════════════════════════════════════
   Tabla I/O — Tihai Builder Modal Stylesheet
   Premium, responsive modal dialog & notation preview styling
   ═══════════════════════════════════════════════════════════════════════ */

/* ─── 1. Modal Overlay / Backdrop ─────────────────────────────────── */
#tihai-builder-modal,
.modal-backdrop#tihai-builder-modal,
.tihai-modal-backdrop {
  position: fixed;
  inset: 0;
  z-index: 10000;
  display: none;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.65);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  opacity: 0;
  pointer-events: none;
  padding: 16px;
  transition: opacity var(--transition-normal, 0.25s ease);
}

#tihai-builder-modal.active,
#tihai-builder-modal.visible,
#tihai-builder-modal[open],
.modal-backdrop#tihai-builder-modal.active,
.tihai-modal-backdrop.active {
  display: flex;
  opacity: 1;
  pointer-events: auto;
}

/* ─── 2. Modal Container ─────────────────────────────────────────── */
.tihai-modal,
#tihai-builder-modal .modal-container {
  position: relative;
  width: 100%;
  max-width: 900px;
  max-height: 90vh;
  overflow-y: auto;
  overflow-x: hidden;
  background: var(--bg-card, var(--bg-elevated, var(--bg-primary, #0a0a0a)));
  border: 1px solid var(--border-strong, var(--border-color, rgba(255, 255, 255, 0.15)));
  border-radius: var(--radius-lg, 16px);
  padding: 28px 32px;
  box-shadow: var(--shadow-lg, 0 20px 50px rgba(0, 0, 0, 0.5)), 0 0 40px var(--accent-subtle, rgba(234, 101, 0, 0.12));
  transform: translateY(16px) scale(0.98);
  opacity: 0;
  transition: transform var(--transition-normal, 0.25s ease), opacity var(--transition-normal, 0.25s ease);
  scrollbar-width: thin;
  scrollbar-color: var(--border-strong, rgba(255, 255, 255, 0.2)) transparent;
}

#tihai-builder-modal.active .tihai-modal,
#tihai-builder-modal.visible .tihai-modal,
#tihai-builder-modal.active .modal-container {
  transform: translateY(0) scale(1);
  opacity: 1;
}

.tihai-modal::-webkit-scrollbar {
  width: 6px;
}
.tihai-modal::-webkit-scrollbar-track {
  background: transparent;
}
.tihai-modal::-webkit-scrollbar-thumb {
  background: var(--border-strong, rgba(255, 255, 255, 0.2));
  border-radius: 3px;
}

/* ─── 3. Header ──────────────────────────────────────────────────── */
.tihai-modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--border-color, rgba(255, 255, 255, 0.08));
  margin-bottom: 24px;
}

.tihai-modal-title,
.tihai-modal-header h2,
.tihai-modal-header h3 {
  font-family: 'Outfit', sans-serif;
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--text-primary, #f0f0f0);
  margin: 0;
  display: flex;
  align-items: center;
  gap: 10px;
  letter-spacing: -0.01em;
}

.tihai-close-btn,
.tihai-modal-close,
.tihai-modal-header .modal-close-btn {
  background: transparent;
  border: none;
  color: var(--text-secondary, #888888);
  cursor: pointer;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm, 8px);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  line-height: 1;
  transition: background var(--transition-fast, 0.15s ease), color var(--transition-fast, 0.15s ease), transform var(--transition-fast, 0.15s ease);
  outline: none;
}

.tihai-close-btn:hover,
.tihai-modal-close:hover,
.tihai-modal-header .modal-close-btn:hover {
  background: var(--accent-subtle, rgba(234, 101, 0, 0.12));
  color: var(--accent, var(--accent-primary, #ea6500));
}

.tihai-close-btn:active,
.tihai-modal-close:active {
  transform: scale(0.95);
}

/* ─── 4. Form Groups & Inputs ────────────────────────────────────── */
.tihai-form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
  flex: 1;
  margin-bottom: 16px;
}

.tihai-form-group label,
.tihai-label {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-secondary, #888888);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.tihai-form-group label .tihai-label-hint,
.tihai-label-hint {
  font-size: 0.75rem;
  font-weight: 400;
  text-transform: none;
  letter-spacing: normal;
  color: var(--text-tertiary, var(--text-muted, #555555));
}

.tihai-form-group input[type="text"],
.tihai-form-group input[type="number"],
.tihai-form-group select,
.tihai-form-group textarea,
.tihai-input,
.tihai-select {
  width: 100%;
  height: 44px;
  padding: 0 14px;
  background: var(--bg-secondary, #0a0a0a);
  border: 1px solid var(--border-strong, var(--border-color, rgba(255, 255, 255, 0.15)));
  border-radius: var(--radius-sm, 8px);
  color: var(--text-primary, #f0f0f0);
  font-size: 0.95rem;
  font-family: inherit;
  transition: border-color var(--transition-fast, 0.15s ease), box-shadow var(--transition-fast, 0.15s ease), background-color var(--transition-fast, 0.15s ease);
  outline: none;
}

.tihai-form-group select,
.tihai-select {
  cursor: pointer;
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg width='12' height='8' viewBox='0 0 12 8' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1.5L6 6.5L11 1.5' stroke='%23888888' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  padding-right: 36px;
}

.tihai-form-group input:focus,
.tihai-form-group select:focus,
.tihai-form-group textarea:focus,
.tihai-input:focus,
.tihai-select:focus {
  border-color: var(--accent, var(--accent-primary, #ea6500));
  box-shadow: 0 0 0 3px rgba(234, 101, 0, 0.18);
  background-color: var(--bg-glass-hover, var(--bg-tertiary, #111111));
}

.tihai-form-group input::placeholder,
.tihai-input::placeholder {
  color: var(--text-tertiary, var(--text-muted, #555555));
  opacity: 0.8;
}

/* ─── 5. Row Layout ──────────────────────────────────────────────── */
.tihai-row {
  display: flex;
  gap: 16px;
  width: 100%;
  margin-bottom: 16px;
  align-items: flex-start;
}

.tihai-row > .tihai-form-group {
  margin-bottom: 0;
  flex: 1;
  min-width: 0;
}

/* ─── 6. Generate Button ─────────────────────────────────────────── */
.tihai-generate-btn {
  width: 100%;
  height: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: var(--accent, var(--accent-primary, #ea6500));
  color: #ffffff;
  font-family: 'Outfit', sans-serif;
  font-size: 1rem;
  font-weight: 600;
  border: none;
  border-radius: var(--radius-md, 12px);
  cursor: pointer;
  transition: background var(--transition-fast, 0.15s ease), transform var(--transition-fast, 0.15s ease), box-shadow var(--transition-fast, 0.15s ease);
  box-shadow: 0 4px 14px rgba(234, 101, 0, 0.25);
  margin-top: 8px;
  margin-bottom: 20px;
  outline: none;
}

.tihai-generate-btn:hover {
  background: var(--accent-hover, #f97316);
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(234, 101, 0, 0.35);
}

.tihai-generate-btn:active {
  transform: translateY(0);
  box-shadow: 0 2px 8px rgba(234, 101, 0, 0.2);
}

.tihai-generate-btn:focus-visible {
  box-shadow: 0 0 0 3px rgba(234, 101, 0, 0.4);
}

/* ─── 7. Result Section ──────────────────────────────────────────── */
.tihai-result {
  display: none;
  flex-direction: column;
  gap: 18px;
  margin-top: 24px;
  padding-top: 24px;
  border-top: 1px solid var(--border-color, rgba(255, 255, 255, 0.08));
}

.tihai-result.active,
.tihai-result.visible,
.tihai-result:not([hidden]) {
  display: flex;
  animation: tihaiSlideUp 0.3s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

/* ─── 8. Result Summary ──────────────────────────────────────────── */
.tihai-result-summary {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  background: var(--bg-secondary, #0a0a0a);
  border: 1px solid var(--border-color, rgba(255, 255, 255, 0.08));
  border-radius: var(--radius-md, 12px);
  padding: 16px;
  text-align: center;
}

.tihai-stat-box,
.tihai-stat-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  padding: 10px 8px;
  background: var(--bg-tertiary, #111111);
  border-radius: var(--radius-sm, 8px);
  border: 1px solid var(--border-color, rgba(255, 255, 255, 0.05));
  transition: transform var(--transition-fast, 0.15s ease), border-color var(--transition-fast, 0.15s ease);
}

.tihai-stat-box:hover,
.tihai-stat-item:hover {
  border-color: var(--border-strong, rgba(255, 255, 255, 0.15));
  transform: translateY(-1px);
}

.tihai-stat-label {
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-secondary, #888888);
}

.tihai-stat-value {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--accent, var(--accent-primary, #ea6500));
  font-family: 'Outfit', sans-serif;
  line-height: 1.2;
}

/* ─── 9. Preview Grid ────────────────────────────────────────────── */
.tihai-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
  width: 100%;
  margin-top: 8px;
  margin-bottom: 16px;
}

/* ─── 10. Grid Cells (Matra) ─────────────────────────────────────── */
.tihai-matra {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
  padding: 12px 8px;
  min-height: 72px;
  background: var(--bg-tertiary, #111111);
  border: 1px solid var(--border-color, rgba(255, 255, 255, 0.08));
  border-radius: var(--radius-sm, 8px);
  text-align: center;
  transition: background-color var(--transition-fast, 0.15s ease), border-color var(--transition-fast, 0.15s ease), transform var(--transition-fast, 0.15s ease);
  position: relative;
  overflow: hidden;
}

.tihai-matra:hover {
  border-color: var(--border-strong, rgba(255, 255, 255, 0.18));
  background-color: var(--bg-glass-hover, #1a1a1a);
}

.tihai-matra-num,
.tihai-matra-number {
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--text-secondary, #888888);
  font-family: 'Outfit', sans-serif;
  opacity: 0.85;
  margin-bottom: 6px;
}

.tihai-matra-bol,
.tihai-bol {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-primary, #f0f0f0);
  font-family: 'Noto Sans Devanagari', 'Outfit', sans-serif;
  line-height: 1.3;
  word-break: break-word;
}

/* ─── 11. Highlighted Landing Bol ────────────────────────────────── */
.tihai-matra.tihai-landing,
.tihai-landing {
  background: var(--accent-subtle, rgba(234, 101, 0, 0.15)) !important;
  border: 1.5px solid var(--accent, var(--accent-primary, #ea6500)) !important;
  box-shadow: 0 0 16px var(--accent-subtle, rgba(234, 101, 0, 0.25));
}

.tihai-matra.tihai-landing .tihai-matra-bol,
.tihai-matra.tihai-landing .tihai-bol,
.tihai-landing .tihai-matra-bol,
.tihai-landing .tihai-bol {
  color: var(--accent, var(--accent-primary, #ea6500)) !important;
  font-weight: 700;
  text-shadow: 0 0 8px rgba(234, 101, 0, 0.3);
}

.tihai-matra.tihai-landing .tihai-matra-num,
.tihai-matra.tihai-landing .tihai-matra-number,
.tihai-landing .tihai-matra-num {
  color: var(--accent, var(--accent-primary, #ea6500));
  font-weight: 700;
  opacity: 1;
}

/* Optional Sam Indicator Tag */
.tihai-matra.tihai-landing::after {
  content: 'SAM';
  position: absolute;
  top: 4px;
  right: 4px;
  font-size: 0.55rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: #ffffff;
  background: var(--accent, var(--accent-primary, #ea6500));
  padding: 1px 4px;
  border-radius: 4px;
  line-height: 1;
}

/* ─── Rest / Gap Bols Styling ─────────────────────────────────────── */
.tihai-rest,
.tihai-matra-bol.tihai-rest,
.tihai-bol.tihai-rest,
.tihai-matra.tihai-rest .tihai-matra-bol {
  color: var(--text-tertiary, var(--text-muted, #555555));
  opacity: 0.6;
  font-style: italic;
  font-weight: 400;
}

/* ─── 12. Error Message ──────────────────────────────────────────── */
.tihai-error {
  display: none;
  align-items: center;
  gap: 10px;
  background: rgba(234, 67, 53, 0.12);
  border: 1px solid rgba(234, 67, 53, 0.3);
  border-left: 4px solid var(--danger, #ea4335);
  color: var(--danger, #ea4335);
  padding: 12px 16px;
  border-radius: var(--radius-sm, 8px);
  font-size: 0.875rem;
  font-weight: 500;
  margin-bottom: 16px;
  line-height: 1.4;
}

.tihai-error.active,
.tihai-error.visible,
.tihai-error:not([hidden]) {
  display: flex;
  animation: tihaiFadeIn 0.2s ease-out forwards;
}

/* ─── 13. Insert Button ──────────────────────────────────────────── */
.tihai-insert-btn {
  width: 100%;
  height: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: var(--bg-tertiary, #111111);
  border: 1.5px solid var(--accent, var(--accent-primary, #ea6500));
  color: var(--accent, var(--accent-primary, #ea6500));
  font-family: 'Outfit', sans-serif;
  font-size: 1rem;
  font-weight: 600;
  border-radius: var(--radius-md, 12px);
  cursor: pointer;
  transition: background var(--transition-fast, 0.15s ease), color var(--transition-fast, 0.15s ease), transform var(--transition-fast, 0.15s ease), box-shadow var(--transition-fast, 0.15s ease);
  outline: none;
  margin-top: 8px;
}

.tihai-insert-btn:hover {
  background: var(--accent, var(--accent-primary, #ea6500));
  color: #ffffff;
  box-shadow: 0 4px 16px rgba(234, 101, 0, 0.3);
  transform: translateY(-1px);
}

.tihai-insert-btn:active {
  transform: translateY(0);
  box-shadow: 0 2px 8px rgba(234, 101, 0, 0.2);
}

.tihai-insert-btn:focus-visible {
  box-shadow: 0 0 0 3px rgba(234, 101, 0, 0.35);
}

/* ─── Keyframe Animations ────────────────────────────────────────── */
@keyframes tihaiSlideUp {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes tihaiFadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

/* ─── Responsive Adjustments ─────────────────────────────────────── */
@media (max-width: 600px) {
  .tihai-modal,
  #tihai-builder-modal .modal-container {
    padding: 20px 16px;
    border-radius: var(--radius-md, 12px);
    width: 95%;
    max-height: 92vh;
  }

  .tihai-row {
    flex-direction: column;
    gap: 12px;
    margin-bottom: 12px;
  }

  .tihai-modal-header {
    padding-bottom: 14px;
    margin-bottom: 18px;
  }

  .tihai-modal-title,
  .tihai-modal-header h2 {
    font-size: 1.2rem;
  }

  .tihai-grid {
    gap: 6px;
  }

  .tihai-matra {
    padding: 8px 4px;
    min-height: 60px;
  }

  .tihai-matra-bol,
  .tihai-bol {
    font-size: 0.9rem;
  }

  .tihai-matra-num,
  .tihai-matra-number {
    font-size: 0.65rem;
  }

  .tihai-result-summary {
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
    padding: 12px 8px;
  }

  .tihai-stat-box,
  .tihai-stat-item {
    padding: 8px 4px;
  }

  .tihai-stat-value {
    font-size: 1.15rem;
  }

  .tihai-stat-label {
    font-size: 0.65rem;
  }
}

@media (max-width: 400px) {
  .tihai-result-summary {
    grid-template-columns: 1fr;
  }
}