/* ============================================================
   PitchMaster Tools — Tool Page Layout
   Responsive layout for tool pages with ad slots
   ============================================================ */

/* ============================================================
   Page Wrapper
   ============================================================ */
.tool-page {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.tool-page__main {
  flex: 1;
  padding: var(--space-4);
  padding-top: var(--space-4);
  max-width: var(--max-width);
  margin-inline: auto;
  width: 100%;
}

/* ============================================================
   Hero / Title Section
   ============================================================ */
.tool-hero {
  text-align: center;
  margin-bottom: var(--space-3);
  animation: fadeInUp var(--duration-slow) var(--ease-out);
}

.tool-hero h1 {
  margin-bottom: var(--space-2);
}

.tool-hero__subtitle {
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  margin: 0;
}

/* ============================================================
   Two-Column Layout (Desktop)
   ============================================================ */
.tool-layout {
  display: grid;
  gap: var(--space-6);
  grid-template-columns: 1fr;
  grid-template-areas:
    "tool"
    "content";
}

@media (min-width: 1024px) {
  .tool-layout {
    grid-template-columns: 1fr var(--sidebar-width);
    grid-template-areas:
      "tool    sidebar"
      "content sidebar";
  }
}

.tool-layout__tool {
  grid-area: tool;
}

.tool-layout__sidebar {
  grid-area: sidebar;
  display: none;
}

@media (min-width: 1024px) {
  .tool-layout__sidebar {
    display: flex;
    flex-direction: column;
    gap: var(--space-6);
  }
}

.tool-layout__content {
  grid-area: content;
}

/* ============================================================
   Tool Interface Area
   ============================================================ */
.tool-interface {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  animation: fadeInScale var(--duration-slow) var(--ease-spring);
}

/* Primary display area (pitch ring, metronome BPM, etc.) */
.tool-display {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-4);
  padding: var(--space-6);
  background: rgba(26, 26, 46, 0.6);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
}

/* Controls area */
.tool-controls {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  padding: var(--space-4);
  background: rgba(26, 26, 46, 0.4);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
}

.tool-controls__row {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  flex-wrap: wrap;
}

.tool-controls__group {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  flex: 1;
  min-width: 200px;
}

.tool-controls__label {
  font-size: var(--text-xs);
  font-weight: var(--weight-semibold);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-dim);
}

/* Settings bar (tuning system, A4 reference) */
.tool-settings {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-4);
  flex-wrap: wrap;
  padding: var(--space-3) var(--space-4);
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
}

/* ============================================================
   Sticky Sidebar (Desktop)
   ============================================================ */
.sidebar-sticky {
  position: sticky;
  top: calc(var(--nav-height) + var(--space-6));
}

/* ============================================================
   Cross-links Section
   ============================================================ */
.cross-links {
  padding: var(--space-8) 0;
}

.cross-links h2 {
  text-align: center;
  margin-bottom: var(--space-6);
}

.cross-links__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-4);
}

.cross-link-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-5);
  border-radius: var(--radius-xl);
  background: rgba(26, 26, 46, 0.4);
  border: 1px solid var(--color-border);
  text-decoration: none;
  color: var(--color-text);
  transition: all var(--duration-normal) var(--ease-default);
  text-align: center;
}

.cross-link-card:hover {
  border-color: var(--color-border-hover);
  box-shadow: var(--shadow-glow);
  transform: translateY(-3px);
  text-decoration: none;
  color: var(--color-text);
}

.cross-link-card__icon {
  font-size: 2rem;
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-lg);
  background: var(--gradient-primary);
}

.cross-link-card__name {
  font-family: var(--font-heading);
  font-weight: var(--weight-semibold);
  font-size: var(--text-base);
}

.cross-link-card__desc {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  margin: 0;
}

/* ============================================================
   Breadcrumb
   ============================================================ */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) 0;
  font-size: var(--text-sm);
  color: var(--color-text-dim);
  list-style: none;
  margin: 0;
}

.breadcrumb li + li::before {
  content: '›';
  margin-right: var(--space-2);
  color: var(--color-text-dim);
}

.breadcrumb a {
  color: var(--color-text-muted);
}

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

/* ============================================================
   Canvas Containers
   ============================================================ */
.canvas-container {
  position: relative;
  width: 100%;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--color-bg-alt);
}

/* Square aspect ratio for pitch display */
.canvas-container--square {
  aspect-ratio: 1;
  max-width: 280px;
  margin-inline: auto;
}

/* Wide aspect ratio for waveform/spectrum/strobe */
.canvas-container--wide {
  aspect-ratio: 3 / 1;
  max-height: 150px;
}

.canvas-container canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

/* ============================================================
   Beat Dots Container
   ============================================================ */
.beat-dots {
  display: flex;
  justify-content: center;
  gap: var(--space-3);
  padding: var(--space-4) 0;
}

.beat-dot {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--color-surface-alt);
  border: 2px solid var(--color-border);
  transition: all var(--duration-fast) var(--ease-spring);
}

.beat-dot.active {
  background: var(--color-primary);
  border-color: var(--color-primary);
  box-shadow: 0 0 16px rgba(var(--color-primary-rgb), 0.5);
  animation: beatPulse 0.3s var(--ease-spring);
}

.beat-dot.active.accent {
  background: var(--color-accent);
  border-color: var(--color-accent);
  box-shadow: 0 0 16px rgba(var(--color-accent-rgb), 0.5);
}

/* ============================================================
   Signal Meters Grid (Analyzer)
   ============================================================ */
.meters-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-4);
}

@media (max-width: 480px) {
  .meters-grid {
    grid-template-columns: 1fr;
  }
}

/* ============================================================
   BPM Display (Metronome)
   ============================================================ */
.bpm-display {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-4);
}

.bpm-display__value {
  font-family: var(--font-heading);
  font-size: var(--text-4xl);
  font-weight: var(--weight-extrabold);
  color: var(--color-text);
  line-height: 1;
  min-width: 120px;
  text-align: center;
}

.bpm-display__label {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-top: var(--space-1);
  text-align: center;
}

/* ============================================================
   Responsive Tweaks
   ============================================================ */

@media (max-width: 767px) {
  .tool-page__main {
    padding: var(--space-3);
    padding-top: var(--space-4);
  }

  .tool-display {
    padding: var(--space-4);
  }

  .tool-controls {
    padding: var(--space-3);
  }

  .tool-hero h1 {
    font-size: var(--text-2xl);
  }

  .ad-slot--leaderboard {
    max-width: 320px;
    min-height: 50px;
  }

  .meters-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-2);
  }

  .canvas-container--square {
    max-width: 220px;
  }
}

@media (min-width: 768px) and (max-width: 1023px) {
  .tool-page__main {
    padding: var(--space-6);
  }
}