/* ============================================================
   M3U Splitter — Premium SaaS landing layer
   Location: assets/css/m3u-splitter.css

   Loaded LAST (after tool.css / m3u-splitter-classic.css /
   m3u-splitter-simple.css / seo-content.css) so it can refine
   them without edits. Everything is scoped to `.splitter-tool-page`
   (in-page) or `.splitter-seo-wrap` (below-tool SEO blocks) so no
   other tool page is affected. Token-driven → light/dark safe.

   NOTHING here changes IDs/classes the splitter JS depends on; it is
   purely presentational. Uploads, category selection, downloads,
   quick-exports and saving keep working exactly as before.
   ============================================================ */

.splitter-tool-page {
  --spl-grad: linear-gradient(135deg, #6366f1 0%, #8b5cf6 50%, #ec4899 100%);
  --spl-ease: cubic-bezier(0.16, 1, 0.3, 1);
}

/* ============================================================
   1) HERO
   ============================================================ */
.splitter-tool-page .splitter-classic-hero {
  position: relative;
  max-width: 760px;
  margin: 0 auto 26px;
  padding-top: 4px;
}

/* Eyebrow pill */
.splitter-hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 5px 14px;
  margin-bottom: 16px;
  border-radius: 999px;
  background: rgba(99, 102, 241, 0.10);
  border: 1px solid rgba(99, 102, 241, 0.26);
  color: var(--primary);
  font-size: 12.5px;
  font-weight: 700;
  letter-spacing: 0.01em;
}
[data-theme="dark"] .splitter-hero-eyebrow {
  background: rgba(139, 92, 246, 0.16);
  border-color: rgba(139, 92, 246, 0.40);
}
.splitter-hero-eyebrow__dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--success, #10b981);
  box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.5);
  animation: spl-pulse 2.4s var(--spl-ease) infinite;
}
@keyframes spl-pulse {
  0%   { box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.5); }
  70%  { box-shadow: 0 0 0 7px rgba(16, 185, 129, 0); }
  100% { box-shadow: 0 0 0 0 rgba(16, 185, 129, 0); }
}

/* Confident product H1 (classic shrank it too far for a landing page) */
.splitter-tool-page .splitter-classic-hero h1 {
  font-size: clamp(1.6rem, 3.4vw, 2.2rem);
  font-weight: 800;
  letter-spacing: -0.025em;
  line-height: 1.12;
  margin: 0 0 12px;
}

.splitter-tool-page .splitter-classic-sub {
  font-size: clamp(14px, 1.4vw, 15.5px);
  line-height: 1.6;
  color: var(--text-secondary);
  max-width: 620px;
  margin: 0 auto;
}

/* Hero icon — keep the gradient tile, calm the glow for a product feel */
.splitter-tool-page .splitter-classic-hero .tool-header-icon {
  width: 64px;
  height: 64px;
  border-radius: 18px;
  margin-bottom: 16px;
  box-shadow: 0 14px 30px -10px rgba(99, 102, 241, 0.5);
}

/* Trust signals row */
.splitter-trust-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px 10px;
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
}
.splitter-trust-row li {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 7px 13px;
  border-radius: 999px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  font-size: 12.5px;
  font-weight: 600;
  color: var(--text-secondary);
  box-shadow: 0 1px 2px rgba(15, 23, 42, 0.04);
}
.splitter-trust-row li span { font-size: 14px; line-height: 1; }
[data-theme="dark"] .splitter-trust-row li {
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.4);
}

/* ============================================================
   2) WORKFLOW STEPPER (Upload → Select → Download)
   ============================================================ */
.splitter-tool-page .splitter-workflow-steps {
  gap: 8px 10px;
  margin-top: 22px;
}
.splitter-tool-page .splitter-workflow-steps li {
  padding: 8px 15px 8px 8px;
  border-radius: 999px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  font-size: 13px;
  font-weight: 600;
  color: var(--text);
  box-shadow: 0 1px 2px rgba(15, 23, 42, 0.04);
}
[data-theme="dark"] .splitter-tool-page .splitter-workflow-steps li {
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.4);
}
.splitter-tool-page .splitter-workflow-steps__num {
  width: 1.6rem;
  height: 1.6rem;
  font-size: 0.8rem;
  background: var(--spl-grad);
  box-shadow: 0 4px 10px -3px rgba(139, 92, 246, 0.6);
}

/* ============================================================
   3) WORKSPACE — grouping & depth
   ============================================================ */
.splitter-tool-page .splitter-classic-panel {
  border-radius: 18px;
  box-shadow: 0 1px 2px rgba(15, 23, 42, 0.04), 0 18px 44px -22px rgba(15, 23, 42, 0.18);
}
[data-theme="dark"] .splitter-tool-page .splitter-classic-panel {
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.5), 0 18px 44px -22px rgba(0, 0, 0, 0.7);
}

.splitter-tool-page .splitter-workspace__main.tool-card {
  border-radius: 18px;
  box-shadow: 0 1px 2px rgba(15, 23, 42, 0.04), 0 14px 36px -22px rgba(15, 23, 42, 0.16);
}
[data-theme="dark"] .splitter-tool-page .splitter-workspace__main.tool-card {
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.5), 0 14px 36px -22px rgba(0, 0, 0, 0.7);
}

/* Step number chips a touch larger / crisper to anchor the workflow */
.splitter-tool-page .tool-card-step {
  width: 34px;
  height: 34px;
  font-size: 15px;
  box-shadow: 0 6px 16px -6px rgba(99, 102, 241, 0.5);
}
.splitter-tool-page .tool-card-step.is-pending {
  box-shadow: none;
}
.splitter-tool-page .tool-card-title {
  font-size: 17px;
  letter-spacing: -0.01em;
}

/* Sidebar shell — premium sticky panel */
.splitter-tool-page .splitter-workspace__side {
  border-radius: 18px;
  box-shadow: 0 1px 2px rgba(15, 23, 42, 0.04), 0 16px 40px -22px rgba(15, 23, 42, 0.16);
}
[data-theme="dark"] .splitter-tool-page .splitter-workspace__side {
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.5), 0 16px 40px -22px rgba(0, 0, 0, 0.7);
}

/* ============================================================
   4) UPLOAD AREA — more inviting dropzone
   ============================================================ */
.splitter-tool-page .splitter-classic-shell .upload-dropzone {
  border-radius: 16px;
  transition: border-color 0.18s ease, background 0.18s ease, box-shadow 0.2s var(--spl-ease);
}
.splitter-tool-page .splitter-classic-shell .upload-dropzone:hover {
  box-shadow: 0 14px 34px -18px rgba(99, 102, 241, 0.4);
}

/* ============================================================
   5) SIDEBAR — summary stat cards (modern SaaS)
   ============================================================ */
.splitter-tool-page .splitter-summary-card {
  padding: 13px 14px;
  border-radius: 14px;
  box-shadow: 0 1px 2px rgba(15, 23, 42, 0.05);
  transition: border-color 0.2s ease, box-shadow 0.2s ease, transform 0.18s var(--spl-ease);
}
.splitter-tool-page .splitter-summary-card:hover {
  transform: translateY(-2px);
}
[data-theme="dark"] .splitter-tool-page .splitter-summary-card {
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.45);
}
.splitter-tool-page .splitter-summary-card__icon {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  font-size: 1.1rem;
  box-shadow: inset 0 0 0 1px rgba(99, 102, 241, 0.12);
}
.splitter-tool-page .splitter-summary-card__value {
  font-size: 1.5rem;
  letter-spacing: -0.02em;
}
/* Selected cards: gradient value once they have a value */
.splitter-tool-page .splitter-summary-card--selected.has-value .splitter-summary-card__value {
  background: var(--spl-grad);
  -webkit-background-clip: text;
          background-clip: text;
  -webkit-text-fill-color: transparent;
          color: transparent;
}
.splitter-tool-page .splitter-summary-card__label {
  font-size: 10.5px;
}

/* ============================================================
   6) SIDEBAR — quick downloads  (+ DARK MODE FIX)
   The base styles in m3u-splitter-simple.css are hardcoded hex
   with no dark variant; re-base on tokens here so both themes work.
   ============================================================ */
.splitter-tool-page .splitter-quick-downloads {
  border-radius: 16px;
  border-color: var(--border);
  background: linear-gradient(180deg, var(--bg-secondary) 0%, var(--bg-card) 60%);
  box-shadow: 0 1px 2px rgba(15, 23, 42, 0.05);
}
[data-theme="dark"] .splitter-tool-page .splitter-quick-downloads {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.03) 0%, var(--bg-card) 60%);
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.45);
}
.splitter-tool-page .splitter-quick-downloads__kicker {
  color: var(--primary);
}
.splitter-tool-page .splitter-quick-downloads__title { color: var(--text); }
.splitter-tool-page .splitter-quick-downloads__lead { color: var(--text-secondary); }
.splitter-tool-page .splitter-quick-downloads__sub { color: var(--text-secondary); }

.splitter-tool-page .splitter-quick-btn {
  border-radius: 12px;
  border-color: var(--border);
  background: var(--bg-card);
  transition: border-color 0.15s ease, box-shadow 0.18s var(--spl-ease), transform 0.15s ease;
}
.splitter-tool-page .splitter-quick-btn:hover:not(:disabled) {
  border-color: var(--primary);
  box-shadow: 0 8px 20px -10px rgba(99, 102, 241, 0.45);
  transform: translateY(-2px);
}
.splitter-tool-page .splitter-quick-btn:disabled {
  background: var(--bg-secondary);
  opacity: 0.6;
}
.splitter-tool-page .splitter-quick-btn__label { color: var(--text); }
.splitter-tool-page .splitter-quick-btn__file { color: var(--text-muted); }
.splitter-tool-page .splitter-quick-btn__meta { color: var(--text-secondary); }
.splitter-tool-page .splitter-quick-btn__meta strong { color: var(--text); }

/* Adult variant — rose accent legible on both themes */
.splitter-tool-page .splitter-quick-btn--adult .splitter-quick-btn__label { color: #e11d48; }
[data-theme="dark"] .splitter-tool-page .splitter-quick-btn--adult .splitter-quick-btn__label { color: #fb7185; }
.splitter-tool-page .splitter-quick-downloads__subsection--adult .splitter-quick-downloads__sub { color: #e11d48; }
[data-theme="dark"] .splitter-tool-page .splitter-quick-downloads__subsection--adult .splitter-quick-downloads__sub { color: #fb7185; }

/* ============================================================
   7) Type counters + VOD recommend (dark fix)
   ============================================================ */
/* Respect the `hidden` attribute on JS-toggled sidebar panels. Their base
   rules set display:grid/flex, which otherwise override [hidden] and leave
   an empty counters grid + debug panel visible before any playlist loads.
   The splitter JS shows them by clearing element.hidden, so this is safe. */
.splitter-tool-page .splitter-type-counters[hidden],
.splitter-tool-page .splitter-class-debug[hidden] {
  display: none !important;
}
.splitter-tool-page .splitter-type-counter {
  border-radius: 12px;
}
[data-theme="dark"] .splitter-tool-page .splitter-vod-recommend {
  background: linear-gradient(135deg, rgba(234, 88, 12, 0.16), rgba(124, 45, 18, 0.14));
  border-color: rgba(251, 146, 60, 0.45);
  color: #fed7aa;
}
[data-theme="dark"] .splitter-tool-page .splitter-vod-recommend a { color: #fdba74; }

/* ============================================================
   8) HELP ARTICLE — readability polish
   ============================================================ */
.splitter-tool-page .splitter-help-article {
  border-radius: 18px;
  box-shadow: 0 1px 2px rgba(15, 23, 42, 0.04), 0 14px 36px -24px rgba(15, 23, 42, 0.16);
}
[data-theme="dark"] .splitter-tool-page .splitter-help-article {
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.5), 0 14px 36px -24px rgba(0, 0, 0, 0.7);
}
.splitter-tool-page .splitter-help-section h3 {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 1.02rem;
}
.splitter-tool-page .splitter-help-section h3::before {
  content: '';
  width: 4px;
  height: 16px;
  border-radius: 2px;
  background: var(--spl-grad);
}

/* ============================================================
   9) RELATED TOOLS — discoverable cards
   ============================================================ */
.splitter-tool-page .related-tools {
  max-width: 1100px;
  margin: 48px auto 0;
}
.splitter-tool-page .related-tools h3 {
  font-size: 20px;
  font-weight: 800;
  letter-spacing: -0.015em;
}
.splitter-tool-page .related-tools-grid {
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 14px;
}
.splitter-tool-page .related-tool-card {
  flex-direction: column;
  align-items: flex-start;
  gap: 6px;
  padding: 18px;
  border-radius: 14px;
  box-shadow: 0 1px 2px rgba(15, 23, 42, 0.04), 0 8px 20px -16px rgba(15, 23, 42, 0.16);
  transition: border-color 0.18s ease, box-shadow 0.2s var(--spl-ease), transform 0.18s var(--spl-ease);
}
.splitter-tool-page .related-tool-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 18px 38px -18px rgba(99, 102, 241, 0.35);
}
[data-theme="dark"] .splitter-tool-page .related-tool-card {
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.45), 0 8px 20px -16px rgba(0, 0, 0, 0.6);
}
.splitter-tool-page .related-tool-icon {
  width: 44px;
  height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
  font-size: 22px;
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.12), rgba(139, 92, 246, 0.10));
  box-shadow: inset 0 0 0 1px rgba(99, 102, 241, 0.12);
}
.splitter-tool-page .related-tool-name {
  font-size: 15px;
  font-weight: 700;
  color: var(--text);
}
.splitter-tool-page .related-tool-desc {
  font-size: 12.5px;
  line-height: 1.45;
  color: var(--text-muted);
}
/* reveal arrow */
.splitter-tool-page .related-tool-card {
  position: relative;
}
.splitter-tool-page .related-tool-card::after {
  content: '→';
  position: absolute;
  top: 16px;
  right: 16px;
  font-weight: 700;
  color: var(--primary);
  opacity: 0;
  transform: translateX(-4px);
  transition: opacity 0.18s ease, transform 0.18s ease;
}
.splitter-tool-page .related-tool-card:hover::after {
  opacity: 1;
  transform: translateX(0);
}

/* ============================================================
   10) SEO CONTENT BLOCKS (below the tool, wrapped in
   `.splitter-seo-wrap`) — use cases, FAQ accordion, related.
   ============================================================ */
.splitter-seo-wrap .seo-block__title {
  font-family: 'Plus Jakarta Sans', 'Inter', sans-serif;
  letter-spacing: -0.02em;
}

/* Use-case cards → product-grade tiles */
.splitter-seo-wrap .seo-usecases__item {
  border-radius: 14px;
  box-shadow: 0 1px 2px rgba(15, 23, 42, 0.04), 0 8px 20px -16px rgba(15, 23, 42, 0.14);
  transition: border-color 0.18s ease, box-shadow 0.2s var(--spl-ease), transform 0.18s var(--spl-ease);
}
.splitter-seo-wrap .seo-usecases__item:hover {
  transform: translateY(-3px);
  border-color: var(--primary);
  box-shadow: 0 16px 34px -18px rgba(99, 102, 241, 0.3);
}
[data-theme="dark"] .splitter-seo-wrap .seo-usecases__item {
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.45), 0 8px 20px -16px rgba(0, 0, 0, 0.6);
}
.splitter-seo-wrap .seo-usecases__item h3 {
  font-weight: 700;
  letter-spacing: -0.01em;
}

/* FAQ accordion — chevron + hover (matches the rest of the site) */
.splitter-seo-wrap .seo-faq__item {
  transition: border-color 0.18s ease, box-shadow 0.18s ease;
}
.splitter-seo-wrap .seo-faq__item:hover {
  border-color: var(--primary);
}
.splitter-seo-wrap .seo-faq__item summary {
  position: relative;
  padding-right: 2.75rem;
  transition: color 0.18s ease;
}
.splitter-seo-wrap .seo-faq__item summary::after {
  content: '';
  position: absolute;
  right: 1.2rem;
  top: 50%;
  width: 9px;
  height: 9px;
  border-right: 2px solid var(--text-muted);
  border-bottom: 2px solid var(--text-muted);
  transform: translateY(-65%) rotate(45deg);
  transition: transform 0.22s var(--spl-ease), border-color 0.18s ease;
}
.splitter-seo-wrap .seo-faq__item[open] summary { color: var(--primary); }
.splitter-seo-wrap .seo-faq__item[open] summary::after {
  transform: translateY(-35%) rotate(-135deg);
  border-color: var(--primary);
}
.splitter-seo-wrap .seo-faq__item summary:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: -2px;
  border-radius: 12px;
}

/* ============================================================
   Responsive + reduced motion
   ============================================================ */
@media (max-width: 640px) {
  .splitter-tool-page .splitter-classic-hero { margin-bottom: 20px; }
  .splitter-trust-row li { font-size: 12px; padding: 6px 11px; }
  .splitter-tool-page .related-tools { margin-top: 36px; }
}

@media (prefers-reduced-motion: reduce) {
  .splitter-hero-eyebrow__dot { animation: none !important; }
  .splitter-tool-page .splitter-summary-card,
  .splitter-tool-page .splitter-quick-btn,
  .splitter-tool-page .related-tool-card,
  .splitter-seo-wrap .seo-usecases__item {
    transition: none !important;
  }
}