/* ==========================================================================
   German Life Toolkit — UI Components
   ========================================================================== */

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background-color: var(--bg-surface);
  border-bottom: 1px solid var(--border-subtle);
  transition: background-color 0.2s ease, border-color 0.2s ease;
  backdrop-filter: blur(8px);
}

.header-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 4.25rem;
  gap: 1rem;
}

.brand-wrapper {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.brand-icon {
  width: 2.25rem;
  height: 2.25rem;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.brand-titles {
  display: flex;
  flex-direction: column;
}

.brand-title {
  font-size: 1.125rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.brand-subtitle {
  font-size: 0.75rem;
  color: var(--text-secondary);
  font-weight: 400;
}

.header-nav {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.nav-link {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
  padding: 0.5rem 0.75rem;
  border-radius: var(--radius-sm);
  transition: color 0.15s, background-color 0.15s;
}

.nav-link:hover, .nav-link.active {
  color: var(--accent-primary);
  background-color: var(--accent-light);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.btn-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.25rem;
  height: 2.25rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-subtle);
  background-color: var(--bg-card);
  color: var(--text-secondary);
  font-size: 0.8125rem;
  font-weight: 600;
  transition: all 0.15s ease;
}

.btn-icon:hover {
  background-color: var(--bg-card-hover);
  color: var(--text-primary);
  border-color: var(--border-strong);
}

.yocto-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.35rem 0.65rem;
  border-radius: var(--radius-full);
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  transition: all 0.15s;
}

.yocto-pill:hover {
  border-color: var(--accent-primary);
  color: var(--accent-primary);
}

.yocto-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: #6366f1;
}

/* Privacy Alert Banner */
.privacy-banner {
  background-color: var(--accent-light);
  border-bottom: 1px solid var(--border-subtle);
  padding: 0.5rem 1rem;
  font-size: 0.8125rem;
  color: var(--accent-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  text-align: center;
  font-weight: 500;
}

/* Hero Section */
.hero-section {
  padding: 2.5rem 0 2rem;
  border-bottom: 1px solid var(--border-subtle);
  background: linear-gradient(180deg, var(--bg-surface) 0%, var(--bg-primary) 100%);
}

.hero-content {
  max-width: 760px;
  margin: 0 auto;
  text-align: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-full);
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  margin-bottom: 1rem;
}

.hero-title {
  font-size: 2.25rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--text-primary);
  line-height: 1.2;
  margin-bottom: 0.75rem;
}

.hero-desc {
  font-size: 1.0625rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 1.75rem;
}

/* Search Bar */
.search-container {
  position: relative;
  max-width: 580px;
  margin: 0 auto;
}

.search-input {
  width: 100%;
  padding: 0.875rem 1rem 0.875rem 2.85rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-strong);
  background-color: var(--bg-card);
  color: var(--text-primary);
  font-size: 0.9375rem;
  box-shadow: var(--shadow-sm);
  transition: border-color 0.2s, box-shadow 0.2s;
}

.search-input:focus {
  border-color: var(--accent-primary);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15);
  outline: none;
}

.search-icon {
  position: absolute;
  left: 1rem;
  top: 50%;
  transform: translateY(-50%);
  width: 1.125rem;
  height: 1.125rem;
  color: var(--text-muted);
  pointer-events: none;
}

.search-clear {
  position: absolute;
  right: 0.75rem;
  top: 50%;
  transform: translateY(-50%);
  font-size: 0.875rem;
  color: var(--text-muted);
  padding: 0.25rem 0.5rem;
  border-radius: var(--radius-sm);
}

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

/* Category Pills Filter */
.categories-bar {
  padding: 1.5rem 0 0.5rem;
  overflow-x: auto;
  white-space: nowrap;
  -webkit-overflow-scrolling: touch;
}

.category-pills {
  display: flex;
  gap: 0.5rem;
  padding-bottom: 0.5rem;
}

.category-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.5rem 0.875rem;
  border-radius: var(--radius-full);
  background-color: var(--bg-card);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  font-size: 0.8125rem;
  font-weight: 500;
  transition: all 0.15s ease;
  flex-shrink: 0;
}

.category-pill:hover {
  background-color: var(--bg-card-hover);
  color: var(--text-primary);
  border-color: var(--border-strong);
}

.category-pill.active {
  background-color: var(--accent-primary);
  border-color: var(--accent-primary);
  color: #ffffff;
}

/* Tool Cards Grid */
.tools-section {
  padding: 2rem 0 4rem;
  flex: 1;
}

.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.25rem;
}

.section-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.01em;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.tools-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1.25rem;
}

.tool-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  box-shadow: var(--shadow-sm);
  transition: transform 0.15s ease, box-shadow 0.15s ease, border-color 0.15s ease;
  cursor: pointer;
  position: relative;
}

.tool-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  border-color: var(--border-strong);
}

.tool-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 0.75rem;
}

.tool-icon-wrapper {
  width: 2.5rem;
  height: 2.5rem;
  border-radius: var(--radius-sm);
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  flex-shrink: 0;
}

.tool-badges {
  display: flex;
  gap: 0.35rem;
  flex-wrap: wrap;
}

.badge {
  font-size: 0.6875rem;
  font-weight: 600;
  padding: 0.2rem 0.5rem;
  border-radius: var(--radius-full);
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.badge-popular {
  background-color: var(--accent-light);
  color: var(--accent-primary);
}

.badge-category {
  background-color: var(--bg-secondary);
  color: var(--text-muted);
}

.tool-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1.35;
  margin-bottom: 0.4rem;
}

.tool-desc {
  font-size: 0.8125rem;
  color: var(--text-secondary);
  line-height: 1.5;
  margin-bottom: 1rem;
  flex: 1;
}

.tool-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 0.75rem;
  border-top: 1px solid var(--border-subtle);
}

.tool-tags {
  font-size: 0.6875rem;
  color: var(--text-muted);
}

.btn-open {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--accent-primary);
  transition: color 0.15s;
}

.btn-open:hover {
  color: var(--accent-hover);
}

/* ==========================================================================
   Tool Page Layout & Controls
   ========================================================================== */

.tool-page-container {
  padding: 2rem 0 4rem;
  display: none; /* activated when hash matches */
}

.tool-topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.btn-back {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
  padding: 0.4rem 0.75rem;
  border-radius: var(--radius-sm);
  background-color: var(--bg-card);
  border: 1px solid var(--border-subtle);
  transition: all 0.15s;
}

.btn-back:hover {
  background-color: var(--bg-card-hover);
  color: var(--text-primary);
}

.tool-headline {
  margin-bottom: 1.5rem;
}

.tool-page-title {
  font-size: 1.75rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.tool-page-subtitle {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  margin-top: 0.25rem;
}

/* Two-column layout */
.tool-layout {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 1.5rem;
  align-items: start;
}

/* Panels */
.input-panel, .result-panel, .info-panel {
  background-color: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  box-shadow: var(--shadow-sm);
}

.result-panel {
  position: sticky;
  top: 5.5rem;
}

.panel-title {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* Forms & Inputs */
.form-group {
  margin-bottom: 1.125rem;
}

.form-label {
  display: block;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.35rem;
}

.input-with-affix {
  position: relative;
  display: flex;
  align-items: center;
}

.form-input, .form-select {
  width: 100%;
  padding: 0.65rem 0.875rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-strong);
  background-color: var(--bg-surface);
  color: var(--text-primary);
  font-size: 0.9375rem;
  transition: border-color 0.15s, box-shadow 0.15s;
}

.input-prefix {
  padding-left: 2rem;
}

.input-suffix {
  padding-right: 2.5rem;
}

.affix {
  position: absolute;
  color: var(--text-muted);
  font-size: 0.875rem;
  pointer-events: none;
  font-weight: 500;
}

.affix-left {
  left: 0.875rem;
}

.affix-right {
  right: 0.875rem;
}

.form-input:focus, .form-select:focus {
  border-color: var(--accent-primary);
  outline: none;
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.12);
}

.form-helper {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 0.3rem;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.875rem;
}

.btn-group-toggle {
  display: flex;
  border-radius: var(--radius-sm);
  background-color: var(--bg-secondary);
  padding: 3px;
  border: 1px solid var(--border-subtle);
}

.btn-toggle-option {
  flex: 1;
  padding: 0.4rem 0.5rem;
  font-size: 0.8125rem;
  font-weight: 500;
  border-radius: var(--radius-sm);
  text-align: center;
  color: var(--text-secondary);
  transition: all 0.15s;
}

.btn-toggle-option.active {
  background-color: var(--bg-card);
  color: var(--text-primary);
  font-weight: 600;
  box-shadow: var(--shadow-sm);
}

.form-actions {
  display: flex;
  gap: 0.75rem;
  margin-top: 1.5rem;
}

.btn-primary {
  flex: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.75rem 1.25rem;
  background-color: var(--accent-primary);
  color: #ffffff;
  font-weight: 600;
  font-size: 0.9375rem;
  border-radius: var(--radius-sm);
  transition: background-color 0.15s;
}

.btn-primary:hover {
  background-color: var(--accent-hover);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1rem;
  background-color: var(--bg-card);
  border: 1px solid var(--border-strong);
  color: var(--text-secondary);
  font-weight: 500;
  font-size: 0.875rem;
  border-radius: var(--radius-sm);
  transition: all 0.15s;
}

.btn-secondary:hover {
  background-color: var(--bg-card-hover);
  color: var(--text-primary);
}

/* Result Card Styles */
.result-hero {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 1.25rem;
  text-align: center;
  margin-bottom: 1.25rem;
}

.result-hero-label {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 0.25rem;
}

.result-hero-amount {
  font-size: 2rem;
  font-weight: 800;
  color: var(--success-color);
  letter-spacing: -0.02em;
  line-height: 1.2;
}

.result-hero-sub {
  font-size: 0.8125rem;
  color: var(--text-muted);
  margin-top: 0.25rem;
}

.breakdown-list {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.breakdown-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.875rem;
  padding-bottom: 0.45rem;
  border-bottom: 1px solid var(--border-subtle);
}

.breakdown-row:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.breakdown-row.total-row {
  font-weight: 700;
  font-size: 0.9375rem;
  border-top: 1px solid var(--border-strong);
  padding-top: 0.6rem;
  color: var(--text-primary);
}

.breakdown-label {
  color: var(--text-secondary);
}

.breakdown-value {
  font-weight: 600;
  color: var(--text-primary);
  font-family: var(--font-mono);
}

.breakdown-value.negative {
  color: var(--danger-color);
}

.breakdown-value.positive {
  color: var(--success-color);
}

/* Explainer & Disclaimers */
.notice-box {
  margin-top: 1.25rem;
  padding: 0.75rem 1rem;
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  line-height: 1.5;
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
}

.notice-box strong {
  color: var(--text-primary);
}

.info-section {
  grid-column: 1 / -1;
  margin-top: 1rem;
}

.faq-item {
  border-bottom: 1px solid var(--border-subtle);
  padding: 1rem 0;
}

.faq-question {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.4rem;
}

.faq-answer {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* Tables */
.data-table-wrapper {
  overflow-x: auto;
  margin-top: 1rem;
}

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

.data-table th {
  background-color: var(--bg-secondary);
  padding: 0.65rem 0.875rem;
  font-weight: 600;
  color: var(--text-primary);
  border-bottom: 1px solid var(--border-strong);
}

.data-table td {
  padding: 0.65rem 0.875rem;
  border-bottom: 1px solid var(--border-subtle);
  color: var(--text-secondary);
}

.data-table tr:hover td {
  background-color: var(--bg-card-hover);
}

.code-block {
  background-color: var(--bg-secondary);
  padding: 0.75rem;
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  margin: 0.5rem 0;
  border: 1px solid var(--border-subtle);
}

/* Footer */
.site-footer {
  margin-top: auto;
  border-top: 1px solid var(--border-subtle);
  background-color: var(--bg-surface);
  padding: 3rem 0 2rem;
  font-size: 0.8125rem;
  color: var(--text-secondary);
}

.footer-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 2rem;
  flex-wrap: wrap;
  margin-bottom: 2rem;
}

.footer-brand {
  max-width: 320px;
}

.footer-links-group {
  display: flex;
  gap: 2.5rem;
  flex-wrap: wrap;
}

.footer-col {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.footer-col-title {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-primary);
  margin-bottom: 0.25rem;
}

.footer-link {
  color: var(--text-secondary);
  transition: color 0.15s;
}

.footer-link:hover {
  color: var(--accent-primary);
}

.footer-bottom {
  border-top: 1px solid var(--border-subtle);
  padding-top: 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer-disclaimer {
  font-size: 0.75rem;
  color: var(--text-muted);
  max-width: 700px;
  line-height: 1.5;
}

/* ==========================================================================
   Google AdSense Placements & CLS Protection
   ========================================================================== */
.ad-section {
  margin: 2rem 0;
  width: 100%;
}

.param-mini-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 0.6rem 0.75rem;
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.param-mini-label {
  font-size: 0.6875rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.param-mini-val {
  font-size: 0.875rem;
  color: var(--text-primary);
  font-weight: 700;
}

.ad-container {
  position: relative;
  background-color: var(--bg-surface);
  border: 1px dashed var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 0.75rem 1rem 1rem 1rem;
  min-height: 120px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  overflow: hidden;
  transition: border-color 0.2s ease, background-color 0.2s ease;
}

.ad-badge-label {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  margin-bottom: 0.5rem;
}

.ad-badge-text {
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
  opacity: 0.85;
}

.ad-container ins.adsbygoogle {
  display: block !important;
  width: 100% !important;
  min-width: 250px;
  margin: 0 auto;
}

.tool-ad-section {
  margin-top: 2.5rem;
  margin-bottom: 2rem;
}

/* ==========================================================================
   Google SEO FAQ & German Life Knowledge Section
   ========================================================================== */
.seo-guide-section {
  margin: 3.5rem auto 2.5rem auto;
  border-top: 1px solid var(--border-subtle);
  padding-top: 3rem;
}

.seo-guide-header {
  text-align: center;
  max-width: 750px;
  margin: 0 auto 2.5rem auto;
}

.seo-guide-title {
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}

.seo-guide-subtitle {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.faq-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 1.25rem;
  margin-bottom: 2.5rem;
}

.faq-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  transition: transform 0.15s ease, border-color 0.15s ease, box-shadow 0.15s ease;
}

.faq-card:hover {
  border-color: var(--accent-primary);
  box-shadow: var(--shadow-sm);
  transform: translateY(-2px);
}

.faq-question {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.75rem;
  line-height: 1.45;
}

.faq-q-icon {
  font-size: 1.125rem;
  flex-shrink: 0;
}

.faq-answer {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.65;
}

.faq-answer b, .faq-answer strong {
  color: var(--text-primary);
  font-weight: 600;
}

.seo-features-banner {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1rem;
  background-color: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  margin-top: 1.5rem;
}

.seo-feature-item {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
}

.seo-feature-icon {
  font-size: 1.5rem;
  line-height: 1;
}

.seo-feature-title {
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.25rem;
}

.seo-feature-desc {
  font-size: 0.75rem;
  color: var(--text-muted);
  line-height: 1.5;
}