/* ==========================================================================
   iLoveMarks - Calculator Tool Pages & SEO Article Styling
   ========================================================================== */

/* ---------------- Breadcrumb ---------------- */
.breadcrumb-nav {
  padding-top: 1.25rem;
  padding-bottom: 0.5rem;
}

.breadcrumb-list {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
  list-style: none;
  font-size: 0.88rem;
  margin: 0;
  padding: 0;
}

.breadcrumb-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--text-muted);
}

.breadcrumb-item a {
  color: var(--text-secondary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.breadcrumb-item a:hover {
  color: var(--primary);
}

.breadcrumb-separator {
  color: var(--text-muted);
  font-size: 0.75rem;
  display: flex;
  align-items: center;
}

.breadcrumb-item.active {
  color: var(--text-primary);
  font-weight: 600;
}

/* ---------------- Tool Hero Header ---------------- */
.tool-header-section {
  padding: 2rem 0 2.5rem;
}

.tool-header-wrapper {
  max-width: 860px;
}

.tool-badge-row {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  margin-bottom: 1rem;
}

.tool-page-title {
  font-size: clamp(2rem, 3.5vw + 0.8rem, 2.85rem);
  margin-bottom: 0.85rem;
  line-height: 1.2;
}

.tool-page-desc {
  font-size: 1.1rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ---------------- Calculator App Card Layout ---------------- */
.calculator-app-section {
  padding-bottom: 4rem;
}

.calculator-app-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 2rem;
  align-items: start;
}

.calc-card-main {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 2rem;
  box-shadow: var(--shadow-md);
}

/* Mode Tabs */
.calc-mode-tabs {
  display: flex;
  background: var(--bg-subtle);
  padding: 0.35rem;
  border-radius: var(--radius-md);
  gap: 0.35rem;
  margin-bottom: 1.75rem;
}

.calc-mode-btn {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.7rem 1rem;
  background: transparent;
  border: none;
  border-radius: var(--radius-sm);
  font-family: var(--font-heading);
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.calc-mode-btn.active {
  background: var(--bg-surface);
  color: var(--primary);
  box-shadow: var(--shadow-sm);
}

/* Stream Presets */
.stream-presets-wrapper {
  margin-bottom: 1.5rem;
}

.stream-label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 0.6rem;
  display: block;
}

.stream-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.stream-pill {
  padding: 0.4rem 0.85rem;
  font-size: 0.85rem;
  font-weight: 600;
  background: var(--bg-subtle);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-full);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.stream-pill:hover, .stream-pill.active {
  background: var(--primary-light);
  border-color: var(--primary);
  color: var(--primary);
}

/* Control Options Bar */
.calc-controls-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 1rem;
  background: var(--bg-subtle);
  border-radius: var(--radius-md);
  margin-bottom: 1.5rem;
  font-size: 0.88rem;
}

.checkbox-label {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  cursor: pointer;
  font-weight: 500;
  color: var(--text-primary);
}

.checkbox-label input[type="checkbox"] {
  accent-color: var(--primary);
  width: 16px;
  height: 16px;
  cursor: pointer;
}

/* Subject Table / Rows */
.subject-rows-container {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  margin-bottom: 1.5rem;
}

.subject-row {
  display: grid;
  grid-template-columns: 2fr 1.2fr 1.2fr 42px;
  gap: 0.75rem;
  align-items: center;
  background: var(--bg-surface);
  border: 1px solid var(--border-light);
  padding: 0.75rem 1rem;
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.subject-row:focus-within {
  border-color: var(--border-focus);
}

.subject-row.split-mode {
  grid-template-columns: 2fr 1fr 1fr 1fr 42px;
}

.input-group {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.input-label-sm {
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
}

.calc-input {
  width: 100%;
  padding: 0.55rem 0.75rem;
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 500;
  background: var(--bg-subtle);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  outline: none;
  transition: border-color var(--transition-fast);
}

.calc-input:focus {
  border-color: var(--primary);
  background: var(--bg-surface);
}

.btn-remove-subject {
  background: transparent;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  height: 38px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.btn-remove-subject:hover {
  background: rgba(244, 63, 94, 0.12);
  color: var(--accent-rose);
}

/* Calculator Actions */
.calc-actions-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border-light);
}

/* ---------------- Results Summary Panel ---------------- */
.calc-result-panel {
  position: sticky;
  top: calc(var(--header-height) + 1.5rem);
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 2rem;
  box-shadow: var(--shadow-md);
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.result-main-card {
  text-align: center;
  background: var(--primary-light);
  border: 1px solid rgba(99, 102, 241, 0.25);
  border-radius: var(--radius-md);
  padding: 2rem 1.5rem;
  position: relative;
  overflow: hidden;
}

.result-main-card::before {
  content: '';
  position: absolute;
  top: -50px;
  right: -50px;
  width: 120px;
  height: 120px;
  background: var(--primary-gradient);
  filter: blur(40px);
  opacity: 0.25;
  pointer-events: none;
}

.result-percentage-display {
  font-family: var(--font-heading);
  font-size: 3.5rem;
  font-weight: 800;
  line-height: 1;
  color: var(--primary);
  margin-bottom: 0.5rem;
}

.result-status-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.35rem 0.9rem;
  background: var(--bg-surface);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-primary);
}

.result-metrics-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.metric-box {
  background: var(--bg-subtle);
  border-radius: var(--radius-md);
  padding: 1rem;
  text-align: center;
}

.metric-label {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  margin-bottom: 0.25rem;
}

.metric-value {
  font-family: var(--font-heading);
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--text-primary);
}

.result-breakdown-list {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.breakdown-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.88rem;
  padding: 0.5rem 0.75rem;
  background: var(--bg-subtle);
  border-radius: var(--radius-sm);
}

.breakdown-name {
  color: var(--text-primary);
  font-weight: 500;
}

.breakdown-score {
  font-weight: 600;
  color: var(--primary);
}

.result-btn-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
}

/* ---------------- 3000+ Words SEO Article Styling ---------------- */
.seo-article-section {
  padding: 4rem 0 5rem;
  border-top: 1px solid var(--border-light);
}

.article-container {
  max-width: 920px;
  margin: 0 auto;
}

/* EEAT Author / Review Card */
.eeat-badge-card {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-left: 4px solid var(--accent-emerald);
  padding: 1.25rem 1.5rem;
  border-radius: var(--radius-md);
  margin-bottom: 3rem;
  box-shadow: var(--shadow-xs);
}

.eeat-avatar {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background: var(--primary-light);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  flex-shrink: 0;
}

.eeat-meta h4 {
  font-size: 1rem;
  margin-bottom: 0.2rem;
}

.eeat-meta p {
  font-size: 0.84rem;
  color: var(--text-muted);
}

/* Table of Contents */
.toc-box {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 1.75rem 2rem;
  margin-bottom: 3.5rem;
}

.toc-title {
  font-size: 1.15rem;
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.toc-list {
  list-style: none;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.6rem 1.5rem;
}

.toc-list a {
  font-size: 0.92rem;
  color: var(--text-secondary);
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

.toc-list a:hover {
  color: var(--primary);
  text-decoration: underline;
}

/* Article Prose */
.article-prose {
  font-size: 1.05rem;
  line-height: 1.8;
  color: var(--text-secondary);
}

.article-prose h2 {
  font-size: 1.85rem;
  margin: 3rem 0 1.25rem;
  color: var(--text-primary);
  padding-top: 1rem;
  border-top: 1px solid var(--border-light);
}

.article-prose h3 {
  font-size: 1.4rem;
  margin: 2rem 0 1rem;
  color: var(--text-primary);
}

.article-prose h4 {
  font-size: 1.15rem;
  margin: 1.5rem 0 0.75rem;
  color: var(--text-primary);
}

.article-prose p {
  margin-bottom: 1.4rem;
}

.article-prose ul, .article-prose ol {
  margin: 1rem 0 1.5rem 1.75rem;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.article-prose li {
  line-height: 1.7;
}

.article-prose li strong {
  color: var(--text-primary);
}

.article-prose strong {
  color: var(--text-primary);
}

/* Callout Box */
.callout-box {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-left: 4px solid var(--primary);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  padding: 1.5rem;
  margin: 2rem 0;
}

.callout-title {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

/* SEO Tables */
.seo-table-wrapper {
  overflow-x: auto;
  margin: 2rem 0 2.5rem;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-xs);
}

.seo-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.92rem;
  background: var(--bg-card);
}

.seo-table th {
  background: var(--bg-subtle);
  padding: 0.9rem 1.2rem;
  font-family: var(--font-heading);
  font-weight: 700;
  color: var(--text-primary);
  border-bottom: 2px solid var(--border-light);
}

.seo-table td {
  padding: 0.85rem 1.2rem;
  border-bottom: 1px solid var(--border-light);
  color: var(--text-secondary);
}

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

.seo-table tr:hover td {
  background: var(--bg-subtle);
}

/* Example Calculation Card */
.example-card {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  margin: 2rem 0;
}

.step-flow {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  margin-top: 1.25rem;
}

.step-item {
  display: flex;
  gap: 1rem;
}

.step-num {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--primary-gradient);
  color: #fff;
  font-family: var(--font-heading);
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
  flex-shrink: 0;
}

.step-content h4 {
  font-size: 1rem;
  margin-bottom: 0.35rem;
  color: var(--text-primary);
}

.step-content p {
  font-size: 0.9rem;
  margin-bottom: 0;
}

/* Related Tools Section */
.related-tools-section {
  padding: 4rem 0 5rem;
  background: var(--bg-surface);
  border-top: 1px solid var(--border-light);
}

/* Responsive Rules for Tool & Article */
@media (max-width: 1024px) {
  .calculator-app-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .calc-result-panel {
    position: static;
  }

  .toc-list {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .tool-header-section {
    padding: 1.5rem 0 1.75rem;
  }

  .tool-page-title {
    font-size: 1.85rem;
  }

  .tool-page-desc {
    font-size: 0.98rem;
  }

  .calc-card-main {
    padding: 1.25rem 1rem;
    border-radius: var(--radius-md);
  }

  .calc-result-panel {
    padding: 1.25rem 1rem;
    border-radius: var(--radius-md);
  }

  .result-main-card {
    padding: 1.5rem 1rem;
  }

  .result-percentage-display {
    font-size: 2.6rem;
  }

  .calc-mode-tabs {
    padding: 0.25rem;
    gap: 0.25rem;
    margin-bottom: 1.25rem;
  }

  .calc-mode-btn {
    padding: 0.55rem 0.45rem;
    font-size: 0.8rem;
    gap: 0.35rem;
    flex-direction: column;
    text-align: center;
    line-height: 1.2;
  }

  .calc-mode-btn svg {
    width: 15px;
    height: 15px;
  }

  .eeat-badge-card {
    padding: 1rem;
    gap: 0.85rem;
    flex-direction: column;
    text-align: center;
  }

  .toc-box {
    padding: 1.25rem 1rem;
  }

  .example-card {
    padding: 1.25rem 1rem;
  }

  .callout-box {
    padding: 1.15rem 1rem;
  }
}

@media (max-width: 480px) {
  .calculator-app-section {
    padding-bottom: 2.5rem;
  }

  .calc-card-main {
    padding: 1rem 0.75rem;
  }

  .calc-result-panel {
    padding: 1rem 0.75rem;
  }

  .calc-mode-btn {
    font-size: 0.75rem;
    padding: 0.45rem 0.25rem;
  }

  .subject-row {
    grid-template-columns: 1fr 1fr;
    gap: 0.4rem;
    padding: 0.6rem 0.5rem;
  }

  .subject-row.split-mode {
    grid-template-columns: 1fr 1fr;
  }

  .subject-row .input-group:first-child {
    grid-column: span 2;
  }

  .btn-remove-subject {
    grid-column: span 2;
    width: 100%;
    height: 32px;
  }

  .result-percentage-display {
    font-size: 2.25rem;
  }

  .result-metrics-grid {
    grid-template-columns: 1fr;
    gap: 0.65rem;
  }

  .result-btn-row {
    grid-template-columns: 1fr;
  }

  .metric-box {
    padding: 0.75rem;
  }

  .seo-table th, .seo-table td {
    padding: 0.65rem 0.75rem;
    font-size: 0.82rem;
  }
}