/* ============================================================
   tools.html — page-specific components only.
   Breadcrumb → theme-layout.css, buttons/modals → theme-components.css,
   toast → theme-board.css. Tokens → theme-tokens.css.
   ============================================================ */

.topic-container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 24px 24px 80px;
  width: 100%;
  box-sizing: border-box;
}

.topic-breadcrumb {
  max-width: 1280px;
  margin: 0 auto;
  padding: 16px 24px 0;
  width: 100%;
  box-sizing: border-box;
}

.topic-breadcrumb .krds-breadcrumb-wrap {
  margin-bottom: 0;
}

/* ── Hero banner (solid brand color, no gradient) ────────── */
.topic-header-banner {
  background: var(--krds-primary);
  border-radius: var(--krds-radius-lg);
  padding: 36px 40px;
  color: var(--krds-on-primary);
  margin-bottom: 32px;
}

.topic-badge-top {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(255, 255, 255, 0.18);
  min-height: 24px;
  padding: 0 12px;
  border-radius: var(--krds-radius-full);
  font-size: 0.9375rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.topic-title {
  font-size: 2rem; /* heading-large 32px */
  font-weight: 800;
  margin: 0 0 10px 0;
  letter-spacing: -0.02em;
  line-height: 1.3;
  color: inherit;
}

.topic-desc {
  font-size: 1.0625rem;
  color: rgba(255, 255, 255, 0.92);
  margin: 0;
  line-height: 1.55;
  max-width: 720px;
}

/* ── Search + category tabs ──────────────────────────────── */
.topic-search-wrap {
  background: var(--krds-surface);
  border: 1px solid var(--krds-border);
  border-radius: var(--krds-radius-lg);
  padding: 20px 24px;
  margin-bottom: 28px;
  box-shadow: var(--krds-shadow-sm);
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.topic-search-row {
  display: flex;
  gap: 12px;
  align-items: center;
}

.topic-search-input-wrap {
  position: relative;
  flex: 1;
}

.topic-search-input-wrap .search-icon {
  position: absolute;
  left: 16px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--krds-text-secondary);
  pointer-events: none;
}

/* .form-input opts out of the global input rule in theme-components.css */
.topic-search-input {
  width: 100%;
  height: 48px;
  padding: 0 44px 0 46px;
  border: 1px solid var(--krds-input-border);
  border-radius: 6px;
  background: var(--krds-surface);
  color: var(--krds-text-primary);
  font-family: inherit;
  font-size: 1.0625rem;
  box-sizing: border-box;
}

.topic-search-input:focus {
  outline: none;
  border-color: var(--krds-primary);
  box-shadow: var(--krds-focus-ring);
}

.topic-search-clear {
  position: absolute;
  right: 12px;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  color: var(--krds-text-secondary);
  cursor: pointer;
  padding: 4px;
  display: none;
  align-items: center;
  justify-content: center;
}

.topic-search-clear:hover {
  color: var(--krds-text-primary);
}

/* Tabs wrap onto several lines instead of scrolling sideways */
.topic-tabs-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.topic-tab-item {
  min-height: 40px;
  padding: 0 18px;
  border-radius: var(--krds-radius-full);
  border: 1px solid var(--krds-border-strong);
  background: var(--krds-surface);
  color: var(--krds-text-secondary);
  font-family: inherit;
  font-size: 0.9375rem;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
  transition: background-color 0.15s ease, color 0.15s ease, border-color 0.15s ease;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.topic-tab-item:hover {
  background: var(--krds-surface-raised);
  color: var(--krds-text-primary);
}

.topic-tab-item:focus-visible {
  outline: 2px solid var(--krds-focus);
  outline-offset: 2px;
}

.topic-tab-item.active {
  background: var(--krds-primary);
  color: var(--krds-on-primary);
  border-color: var(--krds-primary);
}

.topic-tab-count {
  font-size: 0.9375rem;
  opacity: 0.85;
  font-weight: 500;
}

/* ── Cards ───────────────────────────────────────────────── */
.topic-grid-stats {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
  font-size: 1.0625rem;
  color: var(--krds-text-secondary);
}

.topic-grid-stats strong {
  color: var(--krds-primary-text);
  font-weight: 700;
}

.topic-cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(360px, 100%), 1fr));
  gap: 20px;
}

.topic-card {
  background: var(--krds-surface);
  border: 1px solid var(--krds-border);
  border-radius: var(--krds-radius-lg);
  padding: 24px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
  position: relative;
}

.topic-card:hover {
  transform: translateY(-3px);
  border-color: var(--krds-primary);
  box-shadow: var(--krds-shadow-md);
}

.topic-card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 14px;
}

.topic-card-icon-wrap {
  width: 48px;
  height: 48px;
  border-radius: var(--krds-radius-md);
  background: var(--krds-primary-tint);
  color: var(--krds-primary-text);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--krds-font-emoji);
  font-size: 1.5rem;
}

.topic-card-category-badge {
  display: inline-flex;
  align-items: center;
  min-height: 24px;
  padding: 0 8px;
  border-radius: 4px;
  font-size: 0.9375rem;
  font-weight: 700;
  border: 1px solid transparent;
}

.topic-card-category-badge.academic {
  background: var(--krds-badge-info-bg);
  color: var(--krds-badge-info-fg);
  border-color: var(--krds-badge-info-border);
}

.topic-card-category-badge.text {
  background: var(--krds-badge-warning-bg);
  color: var(--krds-badge-warning-fg);
  border-color: var(--krds-badge-warning-border);
}

.topic-card-category-badge.utility {
  background: var(--krds-badge-purple-bg);
  color: var(--krds-badge-purple-fg);
  border-color: var(--krds-badge-purple-border);
}

.topic-card-category-badge.school {
  background: var(--krds-badge-success-bg);
  color: var(--krds-badge-success-fg);
  border-color: var(--krds-badge-success-border);
}

.topic-card-category-badge.files {
  background: var(--krds-danger-tint);
  color: var(--krds-danger);
  border-color: var(--krds-danger);
}

.topic-card-badge-new {
  background: var(--krds-primary);
  color: var(--krds-on-primary);
  font-size: 0.9375rem;
  font-weight: 700;
  padding: 0 7px;
  border-radius: 4px;
  margin-left: 6px;
  vertical-align: middle;
  display: inline-block;
  line-height: 22px;
}

.topic-card-title {
  font-size: 1.1875rem; /* heading-small 19px */
  font-weight: 700;
  color: var(--krds-text-primary);
  margin: 0 0 8px 0;
  line-height: 1.4;
}

.topic-card-desc {
  font-size: 0.9375rem;
  color: var(--krds-text-secondary);
  line-height: 1.55;
  margin: 0 0 20px 0;
  flex: 1;
}

.topic-card-footer {
  display: flex;
  gap: 8px;
  align-items: center;
  border-top: 1px solid var(--krds-border);
  padding-top: 16px;
}

.topic-card-footer .krds-btn.primary {
  flex: 1;
}

/* ── Tool runner modal ───────────────────────────────────── */
.krds-modal-tools .modal-dialog {
  max-width: 640px;
  width: 92%;
}





.tool-stack {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.tool-center {
  text-align: center;
}

.tool-hint {
  font-size: 0.9375rem;
  color: var(--krds-text-secondary);
  margin: 0;
}










.tool-qr-preview {
  margin: 16px auto;
  width: 190px;
  height: 190px;
  background: #ffffff; /* QR codes need a light quiet zone */
  border: 1px solid var(--krds-border);
  border-radius: var(--krds-radius-lg);
  padding: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.tool-qr-preview .tool-hint {
  color: #475569;
}

.tool-qr-img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

/* ── Empty state ─────────────────────────────────────────── */
.topic-empty-wrap {
  grid-column: 1 / -1;
  background: var(--krds-surface);
  border: 1px solid var(--krds-border);
  border-radius: var(--krds-radius-lg);
  padding: 60px 20px;
  text-align: center;
}

.topic-empty-icon {
  color: var(--krds-text-disabled);
  margin-bottom: 12px;
}

.topic-empty-title {
  font-size: 1.1875rem;
  font-weight: 700;
  color: var(--krds-text-primary);
  margin: 0 0 6px 0;
}

.topic-empty-desc {
  font-size: 0.9375rem;
  color: var(--krds-text-secondary);
  margin: 0;
}

@media (max-width: 768px) {
  .topic-header-banner {
    padding: 24px 20px;
  }

  .topic-title {
    font-size: 1.5rem;
  }

  .topic-cards-grid {
    grid-template-columns: 1fr;
  }

  .tool-stat-box-row {
    grid-template-columns: 1fr;
    gap: 8px;
  }
}

/* ── Standalone tool pages (byte counter, D-Day) ─────────── */
.tool-page {
  max-width: 800px;
  margin: 0 auto;
  padding: 24px 24px 80px;
  width: 100%;
  box-sizing: border-box;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.tool-page-title {
  text-align: left;
  font-size: 2rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.3;
  margin: 0 0 8px;
  color: var(--krds-text-primary);
}

.tool-page-desc {
  font-size: 1.0625rem;
  line-height: 1.55;
  color: var(--krds-text-secondary);
  margin: 0;
}

.tool-panel {
  background: var(--krds-surface);
  border: 1px solid var(--krds-border);
  border-radius: var(--krds-radius-lg);
  padding: 24px;
}

.tool-panel-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin: 0 0 16px;
  color: var(--krds-text-primary);
}

.tool-fieldset {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.tool-textarea {
  width: 100%;
  min-height: 200px;
  padding: 12px 16px;
  line-height: 1.6;
}

.tool-btn-row {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.tool-stat-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin: 0 0 20px;
}

.tool-stat {
  background: var(--krds-surface-sunken);
  border: 1px solid var(--krds-border);
  border-radius: var(--krds-radius-md);
  padding: 16px;
}

.tool-stat dt {
  font-size: 0.9375rem;
  color: var(--krds-text-secondary);
  font-weight: 600;
}

.tool-stat dd {
  margin: 4px 0 0;
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--krds-primary-text);
  font-variant-numeric: tabular-nums;
}

.tool-meter-head {
  display: flex;
  justify-content: space-between;
  gap: 8px;
  flex-wrap: wrap;
  font-size: 0.9375rem;
  margin-bottom: 8px;
  color: var(--krds-text-secondary);
}

.tool-meter-head strong {
  color: var(--krds-text-primary);
  font-variant-numeric: tabular-nums;
}

.tool-meter-bar {
  height: 12px;
  background: var(--krds-surface-sunken);
  border: 1px solid var(--krds-border);
  border-radius: var(--krds-radius-full);
  overflow: hidden;
}

.tool-meter-fill {
  height: 100%;
  width: 0;
  background: var(--krds-primary);
  transition: width 0.15s ease;
}

.tool-meter.is-warn .tool-meter-fill { background: var(--krds-warning, #b45309); }
.tool-meter.is-over .tool-meter-fill { background: var(--krds-danger); }
.tool-meter.is-over #bcStatus { color: var(--krds-danger); font-weight: 700; }

.tool-meter .form-hint {
  margin-top: 8px;
}

.tool-rule-list {
  margin: 0;
  padding-left: 20px;
  line-height: 1.8;
  color: var(--krds-text-secondary);
  font-size: 1.0625rem;
}

/* ── D-Day fullscreen countdown (/tools/app/dday/) ──────── */
.dday-screen {
  min-height: 100vh;
  min-height: 100dvh;
  background: var(--krds-primary);
  color: var(--krds-on-primary);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 72px 24px 48px;
  box-sizing: border-box;
  position: relative;
}

.dday-screen[hidden] { display: none; }

.dday-toolbar {
  position: absolute;
  top: 16px;
  left: 16px;
  right: 16px;
  display: flex;
  justify-content: space-between;
  gap: 8px;
  flex-wrap: wrap;
}

.dday-toolbar .krds-btn {
  background: rgba(255, 255, 255, 0.16);
  border: 1px solid rgba(255, 255, 255, 0.4);
  color: var(--krds-on-primary);
}

.dday-toolbar .krds-btn:hover { background: rgba(255, 255, 255, 0.28); }

.dday-toolbar-group { display: flex; gap: 8px; flex-wrap: wrap; }

.dday-title {
  font-size: clamp(1.5rem, 4vw, 2.75rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.3;
  margin: 0 0 16px;
  color: inherit;
  word-break: keep-all;
}

.dday-count {
  font-size: clamp(5rem, 22vw, 16rem);
  font-weight: 800;
  line-height: 1;
  letter-spacing: -0.04em;
  margin: 0;
  font-variant-numeric: tabular-nums;
}

.dday-clock {
  font-size: clamp(2rem, 8vw, 5rem);
  font-weight: 700;
  margin: 24px 0 0;
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.02em;
}

.dday-target {
  font-size: clamp(1rem, 2.4vw, 1.375rem);
  margin: 20px 0 0;
  opacity: 0.9;
}

.dday-setup {
  max-width: 560px;
  margin: 0 auto;
}

@media (max-width: 640px) {
  .tool-page { padding: 16px 16px 64px; }
  .tool-page-title { font-size: 1.5rem; }
  .tool-panel { padding: 16px; }
  .tool-stat-list { grid-template-columns: 1fr; }
}