/* ==========================================================================
   Heavenka Tools & Calculators CSS (tools.css)
   Clean, bright, responsive, accessible, neumorphic Stripe-inspired style
   Matching Heavenka's signature light theme
   ========================================================================== */

:root {
  /* Core Brand Colors (Matching BaseLayout & Home Page) */
  --color-brand:       #635BFF;
  --color-brand-dark:  #4F46E5;
  --color-ink:         #0A2540;
  --color-ink-light:   #425466;
  --color-muted:       #697386;
  --color-border:      #E3E8EE;
  --color-bg:          #F6F9FC;
  --color-surface:     #FFFFFF;
  --color-white:       #FFFFFF;

  /* Tool Semantic Tokens */
  --tool-brand:        #635BFF;
  --tool-brand-light:  #ECEBFF;
  --tool-brand-dark:   #4F46E5;
  --tool-success:      #059669;
  --tool-success-bg:   #ECFDF5;
  --tool-warning:      #D97706;
  --tool-warning-bg:   #FFFBEB;
  --tool-danger:       #DC2626;
  --tool-danger-bg:    #FEF2F2;
  --tool-radius:       12px;
  --tool-radius-sm:    8px;
  --tool-radius-lg:    16px;
  --tool-transition:   all 0.2s ease-in-out;

  /* Neumorphic Drop Shadows */
  --neu-shadow:
    8px 8px 16px #D9E2EE,
    -8px -8px 16px #FFFFFF;
  --neu-shadow-sm:
    4px 4px 8px #D9E2EE,
    -4px -4px 8px #FFFFFF;
  --neu-shadow-inset:
    inset 2px 2px 5px #D0DAE8,
    inset -2px -2px 5px #FFFFFF;
  --neu-shadow-hover:
    10px 10px 20px #D0DAE8,
    -10px -10px 20px #FFFFFF;
}

/* ─── Breadcrumb ────────────────────────────────────── */
.tools-breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  color: var(--color-muted, #697386);
  margin-bottom: 16px;
  flex-wrap: wrap;
}
.tools-breadcrumb a {
  color: var(--color-muted, #697386);
  text-decoration: none;
}
.tools-breadcrumb a:hover {
  color: var(--tool-brand);
  text-decoration: underline;
}
.tools-breadcrumb .sep {
  opacity: 0.5;
}

/* ─── Page Header ───────────────────────────────────── */
.tools-header {
  margin-bottom: 24px;
}
.tools-h1 {
  font-size: 2.2rem;
  font-weight: 800;
  line-height: 1.25;
  color: var(--color-ink, #0A2540);
  letter-spacing: -0.02em;
  margin-bottom: 12px;
}
.tools-subtitle {
  font-size: 1.1rem;
  color: var(--color-ink-light, #425466);
  line-height: 1.6;
  max-width: 800px;
  margin-bottom: 16px;
}
.tools-meta-bar {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  font-size: 0.85rem;
  color: var(--color-muted, #697386);
}
.tools-privacy-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: 20px;
  background: var(--tool-success-bg);
  color: var(--tool-success);
  font-weight: 600;
  font-size: 0.8rem;
}
.tools-privacy-badge svg {
  width: 14px;
  height: 14px;
}

/* ─── Ad Slots (Zero layout shift with min-height) ──── */
.ad-slot,
.tools-ad-slot {
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.02);
  border: 1px dashed rgba(0, 0, 0, 0.08);
  border-radius: var(--tool-radius-sm);
  margin: 28px 0;
  overflow: hidden;
  text-align: center;
  color: var(--color-muted, #a0aec0);
  font-size: 0.75rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}
.ad-slot[data-slot="top"],
.tools-ad-slot[data-ad-position="top"] {
  min-height: 90px;
}
.ad-slot[data-slot="mid"],
.tools-ad-slot[data-ad-position="mid"] {
  min-height: 250px;
}
.ad-slot[data-slot="bottom"],
.tools-ad-slot[data-ad-position="bottom"] {
  min-height: 120px;
}
.ad-slot:empty::before,
.ad-placeholder-label {
  content: 'Sponsored Advertisement';
  display: block;
  opacity: 0.6;
}

/* ─── Main Calculator Layout ────────────────────────── */
.tools-container,
.tools-app-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  align-items: start;
  margin-bottom: 32px;
}
@media (max-width: 960px) {
  .tools-container,
  .tools-app-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }
}

/* ─── Card Box ──────────────────────────────────────── */
.tools-card {
  background: var(--color-surface, #FFFFFF);
  border-radius: var(--tool-radius-lg);
  box-shadow: var(--neu-shadow, 8px 8px 16px #D9E2EE, -8px -8px 16px #FFFFFF);
  border: 1px solid var(--color-border, #E3E8EE);
  padding: 28px;
  position: relative;
  transition: var(--tool-transition);
}
.tools-card__title,
.card-header-flex {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-ink, #0A2540);
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.tools-card__header-actions {
  display: flex;
  gap: 8px;
}

/* ─── Mode Switcher / Tabs ──────────────────────────── */
.tools-tabs {
  display: flex;
  background: #EEF2F6;
  border-radius: var(--tool-radius-sm);
  padding: 4px;
  margin-bottom: 24px;
  border: 1px solid var(--color-border, #E3E8EE);
}
.tools-tab-btn {
  flex: 1;
  padding: 8px 16px;
  font-size: 0.9rem;
  font-weight: 600;
  border: none;
  background: transparent;
  color: var(--color-ink-light, #425466);
  border-radius: 6px;
  cursor: pointer;
  transition: var(--tool-transition);
  text-align: center;
}
.tools-tab-btn.is-active {
  background: #FFFFFF;
  color: var(--tool-brand);
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.08);
}

/* ─── Forms & Controls ──────────────────────────────── */
.tools-form-group,
.form-group {
  margin-bottom: 20px;
}
.tools-form-label,
.form-label {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--color-ink, #0A2540);
  margin-bottom: 6px;
}
.tools-form-label .hint,
.field-hint {
  font-size: 0.78rem;
  font-weight: 400;
  color: var(--color-muted, #697386);
  margin-top: 4px;
}
.tools-input-wrap {
  position: relative;
  display: flex;
  align-items: center;
}
.tools-input-prefix,
.tools-input-suffix {
  position: absolute;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-muted, #697386);
  pointer-events: none;
}
.tools-input-prefix {
  left: 14px;
}
.tools-input-suffix {
  right: 14px;
}
.tools-input,
.tools-select,
.tools-textarea,
.form-input {
  width: 100%;
  padding: 11px 14px;
  font-size: 0.95rem;
  font-family: inherit;
  color: var(--color-ink, #0A2540);
  background: #FFFFFF;
  border: 1.5px solid var(--color-border, #E3E8EE);
  border-radius: var(--tool-radius-sm);
  outline: none;
  transition: var(--tool-transition);
  min-height: 44px; /* Touch target accessibility */
}
.tools-input.has-prefix {
  padding-left: 36px;
}
.tools-input.has-suffix {
  padding-right: 38px;
}
.tools-input:focus,
.tools-select:focus,
.tools-textarea:focus,
.form-input:focus {
  border-color: var(--tool-brand);
  background: #FFFFFF;
  box-shadow: 0 0 0 3px rgba(99, 91, 255, 0.15);
}
.tools-input.is-invalid {
  border-color: var(--tool-danger);
  background: var(--tool-danger-bg);
}
.tools-error-msg {
  color: var(--tool-danger);
  font-size: 0.8rem;
  margin-top: 4px;
  display: none;
}
.tools-error-msg.is-visible {
  display: block;
}
.tools-form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
@media (max-width: 500px) {
  .tools-form-row {
    grid-template-columns: 1fr;
  }
}

/* ─── Buttons ───────────────────────────────────────── */
.tools-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 18px;
  font-size: 0.9rem;
  font-weight: 600;
  border-radius: var(--tool-radius-sm);
  border: 1.5px solid transparent;
  cursor: pointer;
  transition: var(--tool-transition);
  text-decoration: none;
  min-height: 44px;
}
.tools-btn--primary,
.tools-btn-primary {
  background: var(--tool-brand);
  color: #FFFFFF;
  box-shadow: 0 2px 8px rgba(99, 91, 255, 0.25);
}
.tools-btn--primary:hover,
.tools-btn-primary:hover {
  background: var(--tool-brand-dark);
  text-decoration: none;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(99, 91, 255, 0.35);
}
.tools-btn--secondary,
.tools-btn-secondary {
  background: #FFFFFF;
  color: var(--color-ink, #0A2540);
  border-color: var(--color-border, #E3E8EE);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
}
.tools-btn--secondary:hover,
.tools-btn-secondary:hover {
  background: #F8FAFC;
  border-color: #CBD5E1;
  text-decoration: none;
}
.tools-btn--sm {
  padding: 6px 12px;
  font-size: 0.82rem;
  min-height: 36px;
}
.tools-btn-group {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 24px;
}
.btn-text-action {
  background: transparent;
  border: none;
  color: var(--tool-brand);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  padding: 4px 8px;
  border-radius: 4px;
  transition: var(--tool-transition);
}
.btn-text-action:hover {
  background: var(--tool-brand-light);
  text-decoration: none;
}

/* ─── Results Output Area ───────────────────────────── */
.tools-results {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

/* Highlight Card (Luminous, bright, modern Stripe style) */
.tools-highlight-card {
  background: #FFFFFF;
  color: var(--color-ink, #0A2540);
  border-radius: var(--tool-radius);
  padding: 24px;
  border: 1.5px solid var(--color-border, #E3E8EE);
  border-top: 4px solid var(--tool-brand, #635BFF);
  box-shadow: var(--neu-shadow-sm, 4px 4px 8px #D9E2EE, -4px -4px 8px #FFFFFF);
  position: relative;
}
.tools-highlight-card__label {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--tool-brand, #635BFF);
  margin-bottom: 6px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.tools-highlight-card__value {
  font-size: 3.2rem;
  font-weight: 800;
  line-height: 1.1;
  color: var(--color-ink, #0A2540);
  margin-bottom: 8px;
}
.tools-highlight-card__sub {
  font-size: 0.95rem;
  color: var(--color-ink-light, #425466);
  line-height: 1.4;
}
.tools-highlight-card__sub strong {
  color: var(--tool-brand, #635BFF);
  font-weight: 700;
}

/* Secondary Stat Grid */
.tools-stat-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}
@media (max-width: 500px) {
  .tools-stat-grid {
    grid-template-columns: 1fr;
  }
}
.tools-stat-card {
  background: #FFFFFF;
  border-radius: var(--tool-radius-sm);
  padding: 16px;
  border: 1px solid var(--color-border, #E3E8EE);
  box-shadow: 2px 2px 6px rgba(0, 0, 0, 0.02);
}
.tools-stat-card__label {
  font-size: 0.8rem;
  color: var(--color-muted, #697386);
  margin-bottom: 4px;
  font-weight: 600;
}
.tools-stat-card__value {
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--color-ink, #0A2540);
}
.tools-stat-card__desc {
  font-size: 0.78rem;
  color: var(--color-ink-light, #425466);
  margin-top: 4px;
}

/* Status Badges */
.tools-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  border-radius: 20px;
  font-size: 0.88rem;
  font-weight: 700;
  margin-top: 10px;
}
.tools-badge--success {
  background: var(--tool-success-bg);
  color: var(--tool-success);
  border: 1px solid rgba(5, 150, 105, 0.2);
}
.tools-badge--warning {
  background: var(--tool-warning-bg);
  color: var(--tool-warning);
  border: 1px solid rgba(217, 119, 6, 0.2);
}
.tools-badge--danger {
  background: var(--tool-danger-bg);
  color: var(--tool-danger);
  border: 1px solid rgba(220, 38, 38, 0.2);
}

/* Visual Comparison Bar */
.tools-visual-bar {
  background: #FFFFFF;
  border-radius: var(--tool-radius-sm);
  padding: 18px;
  border: 1px solid var(--color-border, #E3E8EE);
  margin-top: 8px;
  box-shadow: 2px 2px 6px rgba(0, 0, 0, 0.02);
}
.tools-visual-bar__title {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--color-ink, #0A2540);
  margin-bottom: 12px;
}
.tools-bar-item {
  margin-bottom: 10px;
}
.tools-bar-item:last-child {
  margin-bottom: 0;
}
.tools-bar-item__header {
  display: flex;
  justify-content: space-between;
  font-size: 0.8rem;
  color: var(--color-ink-light, #425466);
  margin-bottom: 4px;
}
.tools-bar-track {
  height: 10px;
  background: #EEF2F6;
  border-radius: 5px;
  overflow: hidden;
  position: relative;
}
.tools-bar-fill {
  height: 100%;
  border-radius: 5px;
  transition: width 0.4s ease;
}
.tools-bar-fill--primary { background: var(--tool-brand); }
.tools-bar-fill--warning { background: var(--tool-warning); }
.tools-bar-fill--success { background: var(--tool-success); }

/* Table Reference */
.tools-table-wrap {
  overflow-x: auto;
  margin: 16px 0;
  border-radius: var(--tool-radius-sm);
  border: 1px solid var(--color-border, #E3E8EE);
  background: #FFFFFF;
}
.tools-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.88rem;
  text-align: left;
}
.tools-table th,
.tools-table td {
  padding: 10px 14px;
  border-bottom: 1px solid var(--color-border, #E3E8EE);
}
.tools-table th {
  background: #F8FAFC;
  font-weight: 700;
  color: var(--color-ink, #0A2540);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.tools-table tr:last-child td {
  border-bottom: none;
}
.tools-table tr.is-selected {
  background: #ECEBFF;
  font-weight: 600;
}

/* ─── Partner Box (Affiliate / Lead Gen Placeholder) ── */
.partner-box,
.tools-partner-box {
  background: #FAF5FF;
  border: 1.5px solid #E9D5FF;
  border-radius: var(--tool-radius);
  padding: 20px 24px;
  margin: 32px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}
@media (max-width: 720px) {
  .partner-box,
  .tools-partner-box {
    flex-direction: column;
    align-items: flex-start;
  }
}
.partner-box__content,
.partner-box-header {
  flex: 1;
}
.partner-box__pill,
.partner-badge {
  font-size: 0.72rem;
  text-transform: uppercase;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: #7E22CE;
  background: #F3E8FF;
  padding: 3px 8px;
  border-radius: 4px;
  display: inline-block;
  margin-bottom: 6px;
}
.partner-box__title,
.partner-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: #581C87;
  margin-bottom: 4px;
}
.partner-box__desc,
.partner-desc {
  font-size: 0.85rem;
  color: #6B21A8;
  line-height: 1.45;
  margin-bottom: 6px;
}
.partner-box__disclosure,
.partner-disclosure {
  font-size: 0.75rem;
  color: #9333EA;
  opacity: 0.85;
  margin-top: 10px;
}
.partner-box__btn {
  background: #7E22CE;
  color: #FFFFFF;
  padding: 10px 18px;
  border-radius: var(--tool-radius-sm);
  font-weight: 600;
  font-size: 0.88rem;
  text-decoration: none;
  white-space: nowrap;
  transition: var(--tool-transition);
}
.partner-box__btn:hover {
  background: #6B21A8;
  text-decoration: none;
  transform: translateY(-1px);
}
.partner-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 16px;
  width: 100%;
}
@media (max-width: 640px) {
  .partner-grid {
    grid-template-columns: 1fr;
  }
}
.partner-card {
  background: #FFFFFF;
  border: 1px solid #E9D5FF;
  border-radius: 8px;
  padding: 16px;
}
.partner-name {
  font-weight: 700;
  color: #581C87;
  font-size: 0.95rem;
}
.partner-sub {
  font-size: 0.8rem;
  color: #7E22CE;
  margin-top: 2px;
}

/* ─── SEO Explanatory Content ───────────────────────── */
.tools-seo-content,
.tools-seo-article {
  margin-top: 48px;
  padding-top: 40px;
  border-top: 1.5px solid var(--color-border, #E3E8EE);
}
.tools-seo-content h2,
.tools-seo-article h2 {
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--color-ink, #0A2540);
  margin: 36px 0 16px;
  letter-spacing: -0.01em;
}
.tools-seo-content h3,
.tools-seo-article h3 {
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--color-ink, #0A2540);
  margin: 24px 0 12px;
}
.tools-seo-content p,
.tools-seo-article p {
  font-size: 1rem;
  line-height: 1.75;
  color: var(--color-ink-light, #425466);
  margin-bottom: 18px;
}
.tools-seo-content ul,
.tools-seo-content ol,
.tools-seo-article ul,
.tools-seo-article ol {
  margin: 16px 0 24px 24px;
  color: var(--color-ink-light, #425466);
  line-height: 1.75;
}
.tools-seo-content li,
.tools-seo-article li {
  margin-bottom: 8px;
}

/* FAQ Accordion */
.tools-faq-section {
  margin: 40px 0;
}
.tools-faq-item,
.faq-item {
  border: 1px solid var(--color-border, #E3E8EE);
  border-radius: var(--tool-radius-sm);
  margin-bottom: 12px;
  background: var(--color-surface, #FFFFFF);
  overflow: hidden;
}
.tools-faq-question {
  width: 100%;
  text-align: left;
  padding: 16px 20px;
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--color-ink, #0A2540);
  background: transparent;
  border: none;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: var(--tool-transition);
}
.tools-faq-question:hover {
  background: var(--color-bg, #F6F9FC);
}
.tools-faq-question::after {
  content: '+';
  font-size: 1.4rem;
  font-weight: 400;
  color: var(--tool-brand);
  transition: transform 0.2s ease;
}
.tools-faq-item.is-open .tools-faq-question::after {
  content: '−';
}
.tools-faq-answer {
  padding: 0 20px 20px;
  font-size: 0.95rem;
  line-height: 1.7;
  color: var(--color-ink-light, #425466);
  display: none;
}
.tools-faq-item.is-open .tools-faq-answer {
  display: block;
}

/* ─── Related Tools Grid ────────────────────────────── */
.tools-related-section {
  margin: 48px 0;
  padding-top: 36px;
  border-top: 1.5px solid var(--color-border, #E3E8EE);
}
.tools-related-title {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--color-ink, #0A2540);
  margin-bottom: 24px;
}
.tools-related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
@media (max-width: 800px) {
  .tools-related-grid {
    grid-template-columns: 1fr;
  }
}
.tools-related-card {
  background: var(--color-surface, #FFFFFF);
  border-radius: var(--tool-radius);
  padding: 20px;
  border: 1px solid var(--color-border, #E3E8EE);
  text-decoration: none;
  display: flex;
  flex-direction: column;
  transition: var(--tool-transition);
}
.tools-related-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.06);
  border-color: var(--tool-brand);
  text-decoration: none;
}
.tools-related-card__badge {
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  color: var(--tool-brand);
  margin-bottom: 8px;
}
.tools-related-card__title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-ink, #0A2540);
  margin-bottom: 6px;
}
.tools-related-card__desc {
  font-size: 0.82rem;
  color: var(--color-muted, #697386);
  line-height: 1.5;
}

/* ─── Disclaimer ────────────────────────────────────── */
.tools-disclaimer {
  background: var(--color-bg, #F6F9FC);
  border-left: 4px solid var(--color-muted, #A0AEC0);
  padding: 14px 18px;
  border-radius: 0 var(--tool-radius-sm) var(--tool-radius-sm) 0;
  font-size: 0.82rem;
  color: var(--color-muted, #697386);
  line-height: 1.55;
  margin: 32px 0 16px;
}

/* ─── Toast Container ───────────────────────────────── */
.tools-toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 8px;
  pointer-events: none;
}
.tools-toast {
  background: #0A2540;
  color: #FFFFFF;
  padding: 12px 20px;
  border-radius: var(--tool-radius-sm);
  font-size: 0.9rem;
  font-weight: 500;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 0.25s ease, transform 0.25s ease;
  pointer-events: auto;
}
.tools-toast--show {
  opacity: 1;
  transform: translateY(0);
}
.tools-toast--success {
  background: #065F46;
}
.tools-toast--error {
  background: #991B1B;
}

/* ─── Print Styles ──────────────────────────────────── */
@media print {
  header, footer, nav, .ad-slot, .partner-box, .tools-btn-group,
  .tools-tabs, .tools-faq-section, .tools-related-section,
  #toast-container, .cookie-consent, .search-modal {
    display: none !important;
  }
  body, .tools-container, .tools-card, .tools-app-grid {
    background: #FFFFFF !important;
    color: #000000 !important;
    box-shadow: none !important;
    padding: 0 !important;
    margin: 0 !important;
  }
  .tools-container, .tools-app-grid {
    display: block !important;
  }
  .tools-results {
    margin-top: 24px;
    page-break-inside: avoid;
  }
  .tools-highlight-card {
    background: #F3F4F6 !important;
    color: #000000 !important;
    box-shadow: none !important;
    border: 1px solid #D1D5DB;
  }
  .tools-highlight-card__value {
    color: #111827 !important;
  }
}