/* ============================================================
   YourMiniTools — Shared Tool Styles v1.0.0
   Used by all 12 tool pages alongside global.css
   Constraints: No unsafe-inline, WCAG 2.2 AA, mobile-first
   ============================================================ */

/* --- Tool Page Layout --------------------------------------- */
.tool-page {
  max-width: 720px;
  margin: 0 auto;
}

.tool-page-wide {
  max-width: 900px;
  margin: 0 auto;
}

.tool-title {
  font-size: clamp(1.5rem, 4vw, 2.25rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: var(--spacing-sm);
  color: var(--color-text);
}

.tool-description {
  font-size: 1rem;
  color: var(--color-text-muted);
  line-height: 1.6;
  margin-bottom: var(--spacing-xl);
  max-width: 600px;
}

/* --- Tool Card Container ------------------------------------ */
.tool-card-container {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-card);
  padding: var(--spacing-xl);
}

.tool-card-container + .tool-card-container {
  margin-top: var(--spacing-lg);
}

.tool-section-title {
  font-size: 1.125rem;
  font-weight: 700;
  margin-bottom: var(--spacing-md);
  color: var(--color-text);
}

/* --- Form Elements ------------------------------------------ */
.form-group {
  margin-bottom: var(--spacing-lg);
}

.form-group:last-child {
  margin-bottom: 0;
}

.form-label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: var(--spacing-xs);
  color: var(--color-text);
}

.form-hint {
  display: block;
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  margin-top: var(--spacing-xs);
}

/* Text input, number, url, etc. */
.form-input {
  display: block;
  width: 100%;
  padding: 0.625rem 0.75rem;
  font-size: 1rem;
  line-height: 1.5;
  color: var(--color-text);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  transition: border-color var(--transition-fast),
              box-shadow var(--transition-fast);
  min-height: 44px;
}

.form-input:focus {
  border-color: var(--color-border-focus);
  box-shadow: 0 0 0 3px rgba(37, 118, 174, 0.15);
  outline: none;
}

.form-input:focus-visible {
  outline: 3px solid var(--color-primary);
  outline-offset: 2px;
  box-shadow: none;
}

.form-input[aria-invalid="true"] {
  border-color: var(--color-danger);
}

.form-input[aria-invalid="true"]:focus {
  box-shadow: 0 0 0 3px rgba(231, 76, 60, 0.15);
}

/* Select */
.form-select {
  display: block;
  width: 100%;
  padding: 0.625rem 2.25rem 0.625rem 0.75rem;
  font-size: 1rem;
  line-height: 1.5;
  color: var(--color-text);
  background-color: var(--color-bg);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%23636b72' stroke-width='1.5' fill='none'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.75rem center;
  background-size: 12px 8px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  appearance: none;
  transition: border-color var(--transition-fast),
              box-shadow var(--transition-fast);
  min-height: 44px;
  cursor: pointer;
}

.form-select:focus {
  border-color: var(--color-border-focus);
  box-shadow: 0 0 0 3px rgba(37, 118, 174, 0.15);
  outline: none;
}

.form-select:focus-visible {
  outline: 3px solid var(--color-primary);
  outline-offset: 2px;
  box-shadow: none;
}

/* Textarea */
.form-textarea {
  display: block;
  width: 100%;
  padding: 0.75rem;
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  resize: vertical;
  min-height: 120px;
  transition: border-color var(--transition-fast),
              box-shadow var(--transition-fast);
}

.form-textarea:focus {
  border-color: var(--color-border-focus);
  box-shadow: 0 0 0 3px rgba(37, 118, 174, 0.15);
  outline: none;
}

.form-textarea:focus-visible {
  outline: 3px solid var(--color-primary);
  outline-offset: 2px;
  box-shadow: none;
}

/* --- Input Row (side-by-side fields) ------------------------ */
.form-row {
  display: flex;
  gap: var(--spacing-md);
  align-items: flex-end;
}

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

@media (max-width: 479px) {
  .form-row {
    flex-direction: column;
    align-items: stretch;
  }
}

/* --- Checkbox & Radio --------------------------------------- */
.form-check {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  min-height: 44px;
  cursor: pointer;
}

.form-check-input {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  accent-color: var(--color-primary);
  cursor: pointer;
}

.form-check-label {
  font-size: 0.9375rem;
  color: var(--color-text);
  cursor: pointer;
  user-select: none;
}

.form-check-group {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm) var(--spacing-lg);
}

/* --- Range Slider ------------------------------------------- */
.form-range {
  width: 100%;
  height: 6px;
  appearance: none;
  background: var(--color-border);
  border-radius: var(--radius-full);
  outline: none;
  cursor: pointer;
}

.form-range::-webkit-slider-thumb {
  appearance: none;
  width: 22px;
  height: 22px;
  background: var(--color-primary);
  border-radius: 50%;
  border: 2px solid var(--color-surface);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
  transition: transform var(--transition-fast);
}

.form-range::-moz-range-thumb {
  width: 22px;
  height: 22px;
  background: var(--color-primary);
  border-radius: 50%;
  border: 2px solid var(--color-surface);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
  transition: transform var(--transition-fast);
}

.form-range::-webkit-slider-thumb:hover {
  transform: scale(1.15);
}

.form-range::-moz-range-thumb:hover {
  transform: scale(1.15);
}

.form-range:focus-visible::-webkit-slider-thumb {
  outline: 3px solid var(--color-primary);
  outline-offset: 2px;
}

.form-range:focus-visible::-moz-range-thumb {
  outline: 3px solid var(--color-primary);
  outline-offset: 2px;
}

.range-value {
  display: inline-block;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-primary);
  font-family: var(--font-mono);
  min-width: 3ch;
  text-align: center;
}

/* --- Swap Button -------------------------------------------- */
.btn-swap {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-full);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  color: var(--color-primary);
  font-size: 1.25rem;
  transition: background-color var(--transition-fast),
              border-color var(--transition-fast),
              transform var(--transition-fast);
  flex-shrink: 0;
  cursor: pointer;
}

.btn-swap:hover {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: #fff;
}

.btn-swap:active {
  transform: rotate(180deg);
}

.btn-swap svg {
  width: 20px;
  height: 20px;
}

/* --- Action Buttons Row ------------------------------------- */
.tool-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
  margin-top: var(--spacing-lg);
}

.tool-actions-center {
  justify-content: center;
}

/* --- Output / Result Area ----------------------------------- */
.tool-output {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: var(--spacing-md);
  font-family: var(--font-mono);
  font-size: 0.9375rem;
  line-height: 1.6;
  word-break: break-all;
  min-height: 48px;
  position: relative;
}

.tool-output-lg {
  font-size: clamp(1.25rem, 3vw, 1.75rem);
  font-weight: 700;
  text-align: center;
  padding: var(--spacing-lg);
}

.tool-output-copyable {
  cursor: pointer;
  transition: border-color var(--transition-fast);
}

.tool-output-copyable:hover {
  border-color: var(--color-primary);
}

/* Empty state */
.tool-output-empty {
  color: var(--color-text-muted);
  font-family: var(--font-primary);
  font-style: italic;
}

/* --- Stats / Metrics Grid ----------------------------------- */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-sm);
}

@media (min-width: 480px) {
  .stats-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.stat-item {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: var(--spacing-md);
  text-align: center;
}

.stat-value {
  font-size: 1.5rem;
  font-weight: 700;
  font-family: var(--font-mono);
  color: var(--color-text);
  line-height: 1.2;
  overflow-wrap: break-word;
  word-break: break-word;
}

.stat-label {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  margin-top: var(--spacing-xs);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

/* --- Strength Meter (Password) ------------------------------ */
.strength-meter {
  width: 100%;
  height: 8px;
  background: var(--color-border);
  border-radius: var(--radius-full);
  overflow: hidden;
  margin-top: var(--spacing-sm);
}

.strength-meter-fill {
  height: 100%;
  border-radius: var(--radius-full);
  transition: width var(--transition-normal),
              background-color var(--transition-normal);
  width: 0;
}

.strength-meter-fill[data-strength="weak"] {
  background-color: var(--color-danger);
  width: 33%;
}

.strength-meter-fill[data-strength="medium"] {
  background-color: var(--color-warning);
  width: 66%;
}

.strength-meter-fill[data-strength="strong"] {
  background-color: var(--color-success);
  width: 100%;
}

.strength-label {
  font-size: 0.8125rem;
  font-weight: 600;
  margin-top: var(--spacing-xs);
}

.strength-label[data-strength="weak"] {
  color: var(--color-danger);
}

.strength-label[data-strength="medium"] {
  color: var(--color-warning);
}

.strength-label[data-strength="strong"] {
  color: var(--color-success);
}

/* --- Progress Bar ------------------------------------------- */
.progress-bar {
  width: 100%;
  height: 8px;
  background: var(--color-border);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.progress-bar-fill {
  height: 100%;
  background: var(--color-primary);
  border-radius: var(--radius-full);
  transition: width var(--transition-normal);
  width: 0;
}

.progress-text {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  margin-top: var(--spacing-xs);
  text-align: center;
}

/* --- File Drop Zone ----------------------------------------- */
.file-drop {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-2xl) var(--spacing-lg);
  border: 2px dashed var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-bg);
  text-align: center;
  cursor: pointer;
  transition: border-color var(--transition-fast),
              background-color var(--transition-fast);
  min-height: 150px;
}

.file-drop:hover {
  border-color: var(--color-primary);
}

.file-drop[data-dragover="true"] {
  border-color: var(--color-primary);
  background: rgba(37, 118, 174, 0.05);
}

.file-drop-icon {
  width: 48px;
  height: 48px;
  color: var(--color-text-muted);
}

.file-drop-text {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
}

.file-drop-text strong {
  color: var(--color-primary);
}

.file-drop-hint {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  opacity: 0.7;
}

/* Hidden file input */
.file-drop input[type="file"] {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
}

/* --- Table -------------------------------------------------- */
.tool-table-wrapper {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
}

.tool-table {
  width: 100%;
  font-size: 0.875rem;
  text-align: left;
}

.tool-table th,
.tool-table td {
  padding: 0.625rem 0.75rem;
  border-bottom: 1px solid var(--color-border);
  white-space: nowrap;
}

.tool-table th {
  font-weight: 600;
  background: var(--color-bg);
  color: var(--color-text);
  position: sticky;
  top: 0;
  z-index: 1;
}

.tool-table tbody tr:last-child td {
  border-bottom: none;
}

.tool-table tbody tr:hover {
  background: var(--color-bg);
}

.tool-table-scroll {
  max-height: 400px;
  overflow-y: auto;
}

/* --- Tabs --------------------------------------------------- */
.tool-tabs {
  display: flex;
  border-bottom: 2px solid var(--color-border);
  gap: 0;
  margin-bottom: var(--spacing-lg);
}

.tool-tab {
  padding: var(--spacing-sm) var(--spacing-lg);
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--color-text-muted);
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  transition: color var(--transition-fast),
              border-color var(--transition-fast);
  cursor: pointer;
  background: none;
  border-top: none;
  border-left: none;
  border-right: none;
  min-height: 44px;
  white-space: nowrap;
}

.tool-tab:hover {
  color: var(--color-text);
}

.tool-tab[aria-selected="true"] {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
}

.tool-tab-panel {
  display: none;
}

.tool-tab-panel[data-active="true"] {
  display: block;
}

/* --- Large Display (Stopwatch/Timer) ------------------------ */
.display-time {
  font-family: var(--font-mono);
  font-size: clamp(2.5rem, 10vw, 4rem);
  font-weight: 700;
  text-align: center;
  letter-spacing: 0.02em;
  color: var(--color-text);
  padding: var(--spacing-lg) 0;
  line-height: 1;
}

.display-time-ms {
  font-size: 0.5em;
  color: var(--color-text-muted);
}

/* --- Lap List ----------------------------------------------- */
.lap-list {
  max-height: 300px;
  overflow-y: auto;
}

.lap-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-sm) var(--spacing-md);
  border-bottom: 1px solid var(--color-border);
  font-size: 0.875rem;
  font-family: var(--font-mono);
}

.lap-item:last-child {
  border-bottom: none;
}

.lap-number {
  font-weight: 600;
  color: var(--color-text-muted);
}

.lap-time {
  color: var(--color-text);
}

.lap-diff {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
}

/* --- Color Swatch ------------------------------------------- */
.color-preview {
  width: 100%;
  height: 80px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
  transition: background-color var(--transition-fast);
}

.color-palette {
  display: flex;
  gap: var(--spacing-xs);
  flex-wrap: wrap;
}

.color-swatch {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  border: 2px solid var(--color-border);
  cursor: pointer;
  transition: border-color var(--transition-fast),
              transform var(--transition-fast);
  flex-shrink: 0;
}

.color-swatch:hover {
  border-color: var(--color-primary);
  transform: scale(1.1);
}

.color-swatch[data-active="true"] {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 2px var(--color-primary);
}

/* --- Variant Card (Text Case / Social Font) ----------------- */
.variant-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: var(--spacing-md);
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--spacing-md);
}

.variant-card + .variant-card {
  margin-top: var(--spacing-sm);
}

.variant-label {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: var(--spacing-xs);
}

.variant-text {
  font-size: 0.9375rem;
  line-height: 1.5;
  color: var(--color-text);
  word-break: break-word;
  flex: 1;
}

.variant-copy {
  flex-shrink: 0;
}

/* --- Pie Chart (CSS-only, Loan Calculator) ------------------ */
.pie-chart {
  width: 180px;
  height: 180px;
  border-radius: 50%;
  margin: 0 auto;
  position: relative;
}

.pie-chart-legend {
  display: flex;
  justify-content: center;
  gap: var(--spacing-lg);
  margin-top: var(--spacing-md);
}

.pie-legend-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  font-size: 0.8125rem;
  color: var(--color-text-muted);
}

.pie-legend-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  flex-shrink: 0;
}

/* --- Inline Error Message ----------------------------------- */
.form-error {
  display: none;
  font-size: 0.8125rem;
  color: var(--color-danger);
  margin-top: var(--spacing-xs);
}

.form-error[data-visible="true"] {
  display: block;
}

/* --- Info / Warning Banner ---------------------------------- */
.tool-banner {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-sm);
  padding: var(--spacing-md);
  border-radius: var(--radius-sm);
  font-size: 0.8125rem;
  line-height: 1.5;
  margin-bottom: var(--spacing-lg);
}

.tool-banner-info {
  background: rgba(37, 118, 174, 0.08);
  border: 1px solid rgba(37, 118, 174, 0.2);
  color: var(--color-text);
}

.tool-banner-warning {
  background: rgba(243, 156, 18, 0.08);
  border: 1px solid rgba(243, 156, 18, 0.2);
  color: var(--color-text);
}

.tool-banner-icon {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  color: var(--color-primary);
}

.tool-banner-warning .tool-banner-icon {
  color: var(--color-warning);
}

/* --- Legal Disclaimer --------------------------------------- */
.tool-disclaimer {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  line-height: 1.5;
  margin-top: var(--spacing-xl);
  padding-top: var(--spacing-md);
  border-top: 1px solid var(--color-border);
}

/* --- Back to Home Link -------------------------------------- */
.tool-back-home {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  font-size: 0.875rem;
  color: var(--color-text-muted);
  margin-top: var(--spacing-xl);
  transition: color var(--transition-fast);
}

.tool-back-home:hover {
  color: var(--color-primary);
}

.tool-back-home svg {
  width: 16px;
  height: 16px;
}

/* --- Responsive: Mobile ------------------------------------- */
@media (max-width: 479px) {
  .tool-card-container {
    padding: var(--spacing-lg);
  }

  .tool-actions {
    flex-direction: column;
  }

  .tool-actions .btn {
    width: 100%;
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .tool-tabs {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }

  .tool-tab {
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: 0.875rem;
  }

  .variant-card {
    flex-direction: column;
  }

  .pie-chart {
    width: 140px;
    height: 140px;
  }
}

/* --- Canvas (Color Tool image picker) ----------------------- */
#ct-canvas {
  width: 100%;
  height: auto;
  cursor: crosshair;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
}

/* --- QR Output Container ------------------------------------ */
#qr-output {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 80px;
  padding: var(--spacing-md);
}

#qr-output canvas,
#qr-output img {
  display: block;
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-sm);
}

/* --- Image Converter ---------------------------------------- */
.ic-file-item,
.ic-result-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-md);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  margin-bottom: var(--spacing-xs);
  background: var(--color-bg);
  font-size: 0.875rem;
  word-break: break-word;
}

.ic-file-info {
  flex: 1;
  color: var(--color-text);
}

.ic-result-info {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.ic-result-name {
  font-weight: 600;
  color: var(--color-text);
}

.ic-result-details {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
}

.ic-result-error {
  border-color: var(--color-error, #c0392b);
  color: var(--color-error, #c0392b);
}

[data-disabled="true"] {
  opacity: 0.5;
  pointer-events: none;
}

@media (max-width: 479px) {
  .ic-file-item,
  .ic-result-item {
    flex-direction: column;
    align-items: stretch;
    text-align: center;
  }
}

/* --- Loan Calculator ---------------------------------------- */
.lc-chart-section {
  margin-top: var(--spacing-xl);
  text-align: center;
}

.lc-dot-capital {
  background-color: var(--color-primary, #2980b9);
}

.lc-dot-interest {
  background-color: var(--color-error, #e74c3c);
}

/* --- Currency Converter ------------------------------------- */
.cc-converter-row {
  display: flex;
  align-items: flex-end;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
}

.cc-select-group {
  flex: 1;
  margin-bottom: 0;
}

.cc-converter-row .btn-swap {
  margin-bottom: 2px;
}

.cc-result-section {
  margin-top: var(--spacing-lg);
  text-align: center;
}

.cc-rate-detail {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  margin-top: var(--spacing-sm);
  text-align: center;
}

@media (max-width: 479px) {
  .cc-converter-row {
    flex-direction: column;
    align-items: stretch;
  }

  .cc-converter-row .btn-swap {
    align-self: center;
    transform: rotate(90deg);
    margin: var(--spacing-xs) 0;
  }
}

/* --- Reduced Motion ----------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  .strength-meter-fill,
  .progress-bar-fill {
    transition: none;
  }

  .btn-swap:active {
    transform: none;
  }

  .color-swatch:hover {
    transform: none;
  }

  .form-range::-webkit-slider-thumb:hover,
  .form-range::-moz-range-thumb:hover {
    transform: none;
  }
}