/* ═══════════════════════════════════════════════════════════
   AintoB.com — Site Component Styles
   Extends base.css · Bootstrap 5.3 layer
   ═══════════════════════════════════════════════════════════ */

/* ── Breadcrumb Nav ────────────────────────────────────────── */
.breadcrumb-nav {
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-border-light);
}

.breadcrumb-item + .breadcrumb-item::before {
  color: var(--color-text-light);
  content: "›";
}

.breadcrumb-item a {
  color: var(--color-text-muted);
  text-decoration: none;
  font-size: var(--text-sm);
}

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

.breadcrumb-item.active {
  color: var(--color-text);
  font-size: var(--text-sm);
  font-weight: 500;
}


/* ── Category Cards ────────────────────────────────────────── */
.section-categories {
  background: var(--color-bg);
  padding: 72px 0;
}

.category-card {
  display: flex;
  flex-direction: column;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 1.75rem 1.5rem;
  text-decoration: none;
  color: var(--color-text);
  height: 100%;
  transition: box-shadow var(--ease-normal), transform var(--ease-normal), border-color var(--ease-normal);
}

.category-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-3px);
  border-color: var(--color-accent);
  color: var(--color-text);
  text-decoration: none;
}

.category-card--all {
  background: var(--color-accent-light);
  border-color: var(--color-accent-mid);
}

.category-card--all:hover {
  background: var(--color-accent);
  color: #fff;
}

.category-card--all:hover .category-card__desc,
.category-card--all:hover .category-card__cta {
  color: rgba(255,255,255,.85);
}

.category-card__icon {
  font-size: 2.25rem;
  display: block;
  margin-bottom: 1rem;
  line-height: 1;
}

.category-card__title {
  font-size: var(--text-lg);
  font-weight: 700;
  letter-spacing: -.015em;
  margin-bottom: .4rem;
  color: inherit;
}

.category-card__desc {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  flex-grow: 1;
  line-height: 1.55;
  margin-bottom: 1rem;
}

.category-card__cta {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-accent);
  display: flex;
  align-items: center;
  gap: .3rem;
  margin-top: auto;
}


/* ── Format Hub Cards ──────────────────────────────────────── */
.format-hub-card {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  text-decoration: none;
  color: var(--color-text);
  height: 100%;
  transition: box-shadow var(--ease-normal), transform var(--ease-normal), border-color var(--ease-normal);
}

.format-hub-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
  border-color: var(--color-accent);
  color: var(--color-text);
}

.format-hub-card__icon {
  font-size: 1.75rem;
  margin-bottom: .75rem;
  line-height: 1;
}

.format-hub-card__name {
  font-size: var(--text-xl);
  font-weight: 700;
  margin-bottom: .2rem;
  color: var(--color-text);
}

.format-hub-card__full {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  margin-bottom: .5rem;
}

.format-hub-card__count {
  font-size: var(--text-xs);
  color: var(--color-accent);
  font-weight: 600;
  margin: 0;
}


/* ── Converter Grid ────────────────────────────────────────── */
.converter-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: .625rem;
}

.converter-card-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: .5rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: .625rem .875rem;
  text-decoration: none;
  color: var(--color-text);
  font-size: var(--text-sm);
  font-weight: 500;
  transition: background-color var(--ease-fast), border-color var(--ease-fast), color var(--ease-fast);
}

.converter-card-link:hover {
  background-color: var(--color-accent-light);
  border-color: var(--color-accent-mid);
  color: var(--color-accent);
}

.converter-card-link__label {
  flex: 1;
  min-width: 0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.converter-card-link__arrow {
  flex-shrink: 0;
  font-size: .75rem;
  color: var(--color-text-light);
  transition: color var(--ease-fast);
}

.converter-card-link:hover .converter-card-link__arrow {
  color: var(--color-accent);
}


/* ── Section: Popular / Formats / Related ───────────────────── */
.section-popular,
.section-formats,
.section-related,
.section-more-pairs,
.section-reverse {
  padding: 64px 0;
  background: var(--color-bg);
}

.section-popular:nth-of-type(even),
.section-formats:nth-of-type(even) {
  background: var(--color-surface);
}

.section-from-to {
  padding: 64px 0;
  background: var(--color-surface);
}

.section-from-to--to {
  background: var(--color-bg);
}


/* ── Privacy Block ─────────────────────────────────────────── */
.privacy-block {
  background: var(--color-accent-light);
  border-top: 1px solid var(--color-accent-mid);
  border-bottom: 1px solid var(--color-accent-mid);
  padding: 2rem 0;
}

.privacy-block__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--container-padding);
  display: flex;
  align-items: flex-start;
  gap: 1.25rem;
}

.privacy-icon { font-size: 2rem; flex-shrink: 0; line-height: 1; margin-top: .1rem; }

.privacy-block strong {
  display: block;
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--color-accent);
  margin-bottom: .35rem;
}

.privacy-block p {
  color: var(--color-text-muted);
  margin: 0;
  font-size: var(--text-sm);
}


/* ── Drop Zone ─────────────────────────────────────────────── */
.drop-zone {
  border: 2px dashed var(--color-border);
  border-radius: var(--radius-lg);
  padding: 2.5rem 2rem;
  text-align: center;
  cursor: pointer;
  transition: border-color var(--ease-normal), background-color var(--ease-normal);
  background: var(--color-bg);
}

.drop-zone:hover,
.drop-zone.dragover {
  border-color: var(--color-accent);
  background: var(--color-accent-light);
}

.drop-zone__icon {
  font-size: 3rem;
  color: var(--color-text-light);
  display: block;
  margin-bottom: .75rem;
}

.drop-zone__text {
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: .25rem;
}

.drop-zone__sub {
  color: var(--color-text-light);
  font-size: var(--text-sm);
  margin-bottom: .75rem;
}

.drop-zone__limit {
  font-size: var(--text-xs);
  color: var(--color-text-light);
  margin-top: .75rem;
  margin-bottom: 0;
}


/* ── Converter Settings ────────────────────────────────────── */
.converter-settings .file-selected-row {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: .75rem 1rem;
}

.converter-settings .fw-600 { font-weight: 600; }

.output-success-row {
  background: #f0fdf4;
  border: 1px solid #bbf7d0;
  border-radius: var(--radius-md);
  padding: .75rem 1rem;
}


/* ── Pair Page Hero ────────────────────────────────────────── */
.section-hero--pair { padding-bottom: 32px; }

.format-badge-row {
  display: inline-flex;
  align-items: center;
  gap: .75rem;
  margin-bottom: 1.25rem;
}

.format-badge {
  display: inline-block;
  padding: .35rem .9rem;
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  font-weight: 700;
  letter-spacing: .04em;
  text-transform: uppercase;
}

.format-badge--from {
  background: var(--color-border);
  color: var(--color-text-muted);
}

.format-badge--to {
  background: var(--color-accent);
  color: #fff;
}

.format-badge-arrow {
  font-size: 1.5rem;
  color: var(--color-text-light);
  font-weight: 700;
}


/* ── Content Sections ──────────────────────────────────────── */
.section-content {
  padding: 64px 0;
  background: var(--color-surface);
}

.section-how-it-works {
  padding: 64px 0;
  background: var(--color-bg);
}

.section-formats-explainer {
  padding: 64px 0;
  background: var(--color-surface);
}

.section-privacy { padding: 72px 0; background: var(--color-bg); }
.section-popular { padding: 64px 0; }
.section-how     { padding: 72px 0; background: var(--color-surface); }


/* ── How It Works List ─────────────────────────────────────── */
.how-it-works-list {
  list-style: none;
  padding: 0;
  margin: 0;
  counter-reset: how-counter;
}

.how-it-works-list li {
  counter-increment: how-counter;
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding: 1rem 1.25rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  margin-bottom: .75rem;
  font-size: var(--text-base);
}

.how-it-works-list li::before {
  content: counter(how-counter);
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 2rem;
  height: 2rem;
  background: var(--color-accent);
  color: #fff;
  border-radius: 50%;
  font-weight: 700;
  font-size: var(--text-sm);
  flex-shrink: 0;
}


/* ── How Step Cards ────────────────────────────────────────── */
.how-step {
  padding: 1.5rem;
}

.how-step__num {
  width: 52px;
  height: 52px;
  background: var(--color-accent);
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--text-2xl);
  font-weight: 700;
  margin: 0 auto 1rem;
}

.how-step__title {
  font-size: var(--text-lg);
  font-weight: 700;
  margin-bottom: .5rem;
}

.how-step__desc {
  color: var(--color-text-muted);
  font-size: var(--text-sm);
  margin: 0;
}


/* ── Explainer Card ────────────────────────────────────────── */
.explainer-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 2rem;
}

.explainer-subtitle {
  font-size: var(--text-base);
  font-weight: 700;
  margin-top: 1.5rem;
  margin-bottom: .75rem;
  color: var(--color-text);
}

.explainer-list {
  list-style: none;
  padding: 0;
  margin: 0 0 1rem;
}

.explainer-list li {
  display: flex;
  align-items: flex-start;
  gap: .5rem;
  padding: .35rem 0;
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  border-bottom: 1px solid var(--color-border-light);
}

.explainer-list li:last-child { border-bottom: none; }

.explainer-note {
  background: #fff7ed;
  border: 1px solid #fed7aa;
  border-radius: var(--radius-md);
  padding: .75rem 1rem;
  font-size: var(--text-sm);
  color: #92400e;
  margin-top: 1rem;
}


/* ── Format Explainer Cards ────────────────────────────────── */
.format-explainer-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  height: 100%;
}

.format-explainer-card__header {
  display: flex;
  align-items: center;
  gap: .75rem;
  margin-bottom: 1rem;
}

.format-explainer-card__icon { font-size: 1.75rem; }

.format-explainer-card__name {
  font-size: var(--text-lg);
  font-weight: 700;
  margin: 0;
  color: var(--color-text);
}


/* ── Section Explainer ─────────────────────────────────────── */
.section-explainer {
  padding: 64px 0;
  background: var(--color-bg);
}


/* ── Privacy Section (Homepage) ────────────────────────────── */
.section-privacy {
  background: var(--color-surface);
}

.privacy-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.privacy-list li {
  display: flex;
  align-items: center;
  gap: .625rem;
  padding: .6rem 0;
  font-size: var(--text-base);
  border-bottom: 1px solid var(--color-border-light);
  color: var(--color-text-muted);
}

.privacy-list li:last-child { border-bottom: none; }

.privacy-illustration {
  display: flex;
  justify-content: center;
  align-items: center;
}

.priv-box {
  background: var(--color-accent-light);
  border: 2px solid var(--color-accent-mid);
  border-radius: var(--radius-xl);
  padding: 2.5rem 3rem;
  text-align: center;
}

.priv-badge {
  display: inline-flex;
  align-items: center;
  gap: .35rem;
  background: var(--color-accent);
  color: #fff;
  border-radius: var(--radius-full);
  padding: .3rem .85rem;
  font-size: var(--text-xs);
  font-weight: 700;
  margin-top: .75rem;
}


/* ── Section: From/To Hubs ─────────────────────────────────── */
.section-formats {
  padding: 72px 0;
}


/* ── Content page sections ─────────────────────────────────── */
.section-content h2,
.section-how-it-works h2,
.section-formats-explainer h2,
.section-content p,
.section-how-it-works p,
.section-formats-explainer p {
  /* These inherit base styles */
}

.section-content h2 { font-size: var(--text-2xl); font-weight: 700; margin-bottom: 1rem; }
.section-content h3 { font-size: var(--text-lg); font-weight: 600; margin: 1.5rem 0 .75rem; }
.section-content ul { padding-left: 1.5rem; }
.section-content li { margin-bottom: .4rem; color: var(--color-text-muted); }


/* ── Static pages ──────────────────────────────────────────── */
.section-content .container p { margin-bottom: 1rem; }
.section-content .container h2 { font-size: var(--text-2xl); font-weight: 700; margin: 2rem 0 1rem; border-bottom: 1px solid var(--color-border); padding-bottom: .5rem; }
.section-content .container h3 { font-size: var(--text-lg); font-weight: 600; margin: 1.5rem 0 .5rem; }


/* ── Responsive Adjustments ────────────────────────────────── */
@media (max-width: 575px) {
  .section-categories,
  .section-popular,
  .section-formats,
  .section-related,
  .section-how,
  .section-privacy,
  .section-from-to,
  .section-explainer,
  .section-content,
  .section-how-it-works,
  .section-formats-explainer { padding: 48px 0; }

  .converter-grid {
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  }

  .privacy-block__inner { flex-direction: column; }

  .format-badge-row { flex-wrap: wrap; justify-content: center; }

  .priv-box { padding: 2rem 1.5rem; }
}

@media (max-width: 767px) {
  .drop-zone { padding: 1.75rem 1rem; }
  .drop-zone__icon { font-size: 2.25rem; }
}

/* ── Converter Mode Tabs (text-paste mode) ──────────────────── */
.converter-mode-tabs {
  display: flex;
  gap: .5rem;
  margin-bottom: 1rem;
}

.converter-mode-tab {
  padding: .4rem 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-bg);
  color: var(--color-text-muted);
  font-size: var(--text-sm);
  font-weight: 500;
  cursor: pointer;
  transition: background var(--ease-fast), color var(--ease-fast), border-color var(--ease-fast);
}

.converter-mode-tab:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.converter-mode-tab.active {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: #fff;
}

.converter-panel { /* shown/hidden via JS */ }

.text-editor-area {
  width: 100%;
  min-height: 220px;
  padding: .75rem 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  color: var(--color-text);
  font-family: 'Fira Code', 'Courier New', monospace;
  font-size: var(--text-sm);
  line-height: 1.6;
  resize: vertical;
  transition: border-color var(--ease-fast), box-shadow var(--ease-fast);
}

.text-editor-area:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(37,99,235,.12);
}

/* ── Visually hidden utility ────────────────────────────────── */
.visually-hidden {
  position: absolute !important;
  width: 1px !important; height: 1px !important;
  padding: 0 !important; margin: -1px !important;
  overflow: hidden !important; clip: rect(0,0,0,0) !important;
  white-space: nowrap !important; border: 0 !important;
}

/* ── fw-600 utility ─────────────────────────────────────────── */
.fw-600 { font-weight: 600 !important; }