/* ============================================================================
   EasyCompare Screenshot Tour
   ----------------------------------------------------------------------------
   A linear, no-fluff feature walkthrough. Borrows brand tokens from
   landing.css but lives in its own stylesheet so the tour can evolve
   independently without churn on the marketing page.
   ============================================================================ */

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --tour-font: "DM Sans", "Segoe UI", -apple-system, BlinkMacSystemFont, sans-serif;
  --tour-font-display: "Instrument Serif", Georgia, "Times New Roman", serif;
  --tour-font-mono: "SF Mono", "Fira Code", "Fira Mono", monospace;

  --tour-ink: #1f2328;
  --tour-ink-secondary: #4d555f;
  --tour-ink-tertiary: #707983;
  --tour-surface: #ffffff;
  --tour-surface-alt: #f7f9fc;
  --tour-surface-tint: #eef3fb;
  --tour-border: rgba(15, 23, 42, 0.10);
  --tour-border-strong: rgba(15, 23, 42, 0.16);
  --tour-primary: #0969da;
  --tour-primary-hover: #0860c4;
  --tour-primary-soft: rgba(9, 105, 218, 0.10);
  --tour-success: #10b981;
  --tour-warning: #b45309;

  /* Wider page: at least 75% of viewport, capped at 1500px so it stays
     legible on ultra-wide monitors. */
  --tour-content-max: min(1500px, 92vw);
  --tour-content-padding: 0 1.5rem;
  --tour-section-gap: 4.5rem;
  --tour-feature-gap: 2.75rem;

  --tour-radius: 12px;
  --tour-radius-lg: 16px;
}

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--tour-font);
  color: var(--tour-ink);
  background: var(--tour-surface);
  line-height: 1.6;
  overflow-x: hidden;
}

a {
  color: var(--tour-primary);
  text-decoration: none;
  transition: color 0.15s;
}

a:hover {
  color: var(--tour-primary-hover);
  text-decoration: underline;
}

/* ============================================================================
   NAV (matches landing for brand consistency)
   ============================================================================ */

.tour-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(16px) saturate(180%);
  -webkit-backdrop-filter: blur(16px) saturate(180%);
  border-bottom: 1px solid var(--tour-border);
}

.tour-nav-inner {
  max-width: var(--tour-content-max);
  margin: 0 auto;
  padding: 0 1.5rem;
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.tour-nav-logo {
  --brand-logo-display-height: 56px;
}

.tour-nav-right {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.tour-nav-link {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--tour-ink-secondary);
  padding: 0.4rem 0.6rem;
  border-radius: 6px;
}

.tour-nav-link:hover {
  background: var(--tour-surface-alt);
  text-decoration: none;
}

.tour-nav-cta {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.45rem 1.05rem;
  font-size: 0.875rem;
  font-weight: 600;
  color: #fff;
  background: var(--tour-primary);
  border-radius: 6px;
  letter-spacing: -0.01em;
  transition: background 0.15s, transform 0.1s;
}

.tour-nav-cta:hover {
  background: var(--tour-primary-hover);
  color: #fff;
  text-decoration: none;
}

.tour-nav-cta:active {
  transform: scale(0.98);
}

/* ============================================================================
   HERO
   ============================================================================ */

.tour-hero {
  padding: 4.5rem 1.5rem 2.5rem;
  background:
    radial-gradient(circle at 15% 0%, rgba(9, 105, 218, 0.06), transparent 55%),
    radial-gradient(circle at 90% 10%, rgba(99, 102, 241, 0.05), transparent 55%),
    var(--tour-surface);
  border-bottom: 1px solid var(--tour-border);
}

.tour-hero-inner {
  max-width: var(--tour-content-max);
  margin: 0 auto;
}

.tour-eyebrow {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--tour-primary);
  background: var(--tour-primary-soft);
  padding: 0.3rem 0.7rem;
  border-radius: 999px;
  margin-bottom: 1.1rem;
}

.tour-hero-title {
  font-family: var(--tour-font);
  font-weight: 700;
  font-size: clamp(2rem, 4.5vw, 2.75rem);
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--tour-ink);
  margin-bottom: 0.85rem;
}

/* ============================================================================
   TABLE OF CONTENTS
   ============================================================================ */

.tour-toc {
  max-width: var(--tour-content-max);
  margin: 2.5rem auto 0;
  padding: 1.75rem 1.85rem 1.85rem;
  background: var(--tour-surface-alt);
  border: 1px solid var(--tour-border);
  border-radius: var(--tour-radius-lg);
}

.tour-toc-title {
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--tour-ink-tertiary);
  margin-bottom: 1.1rem;
}

.tour-toc-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 0.55rem 1.5rem;
  list-style: none;
}

.tour-toc-item a {
  display: flex;
  align-items: baseline;
  gap: 0.7rem;
  padding: 0.5rem 0.65rem;
  margin-left: -0.65rem;
  border-radius: 6px;
  font-size: 1.05rem;
  font-weight: 500;
  line-height: 1.35;
  color: var(--tour-ink);
  transition: background 0.15s, color 0.15s;
}

.tour-toc-item a:hover {
  background: rgba(9, 105, 218, 0.08);
  color: var(--tour-primary);
  text-decoration: none;
}

.tour-toc-num {
  font-variant-numeric: tabular-nums;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--tour-ink-tertiary);
  min-width: 1.5rem;
}

/* ============================================================================
   MAIN
   ============================================================================ */

main.tour-main {
  max-width: var(--tour-content-max);
  margin: 0 auto;
  padding: 3rem 1.5rem 5rem;
}

/* ============================================================================
   CHAPTER
   ============================================================================ */

.tour-chapter {
  padding-top: var(--tour-section-gap);
  scroll-margin-top: 96px;
}

.tour-chapter:first-of-type {
  padding-top: 1rem;
}

.tour-chapter-header {
  border-bottom: 1px solid var(--tour-border);
  padding-bottom: 1.25rem;
  margin-bottom: 2.25rem;
}

.tour-chapter-title {
  font-family: var(--tour-font);
  font-weight: 700;
  font-size: clamp(1.6rem, 3vw, 2rem);
  line-height: 1.2;
  letter-spacing: -0.015em;
  color: var(--tour-ink);
  margin-bottom: 0.55rem;
}

.tour-chapter-intro {
  font-size: 1rem;
  color: var(--tour-ink-secondary);
  max-width: 70ch;
}

/* ============================================================================
   FEATURE
   ============================================================================ */

.tour-feature {
  padding-bottom: var(--tour-feature-gap);
  margin-bottom: var(--tour-feature-gap);
  border-bottom: 1px dashed var(--tour-border);
  scroll-margin-top: 96px;
}

.tour-feature:last-child {
  border-bottom: 0;
  margin-bottom: 0;
}

.tour-feature-header {
  display: flex;
  align-items: baseline;
  gap: 0.85rem;
  margin-bottom: 0.7rem;
}

.tour-feature-id {
  display: inline-flex;
  align-items: center;
  font-family: var(--tour-font-mono);
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--tour-primary);
  background: var(--tour-primary-soft);
  padding: 0.25rem 0.55rem;
  border-radius: 5px;
  font-variant-numeric: tabular-nums;
  letter-spacing: 0;
  flex: 0 0 auto;
}

.tour-feature-title {
  font-family: var(--tour-font);
  font-weight: 600;
  font-size: clamp(1.2rem, 2vw, 1.4rem);
  line-height: 1.3;
  letter-spacing: -0.012em;
  color: var(--tour-ink);
}

.tour-feature-desc {
  font-size: 1rem;
  line-height: 1.65;
  color: var(--tour-ink-secondary);
  max-width: 70ch;
}

.tour-feature-desc strong {
  color: var(--tour-ink);
  font-weight: 600;
}

.tour-feature-desc code,
.tour-feature-desc kbd {
  font-family: var(--tour-font-mono);
  font-size: 0.88em;
  background: var(--tour-surface-alt);
  border: 1px solid var(--tour-border);
  padding: 0.05em 0.35em;
  border-radius: 4px;
  color: var(--tour-ink);
}

/* ============================================================================
   MEDIA PLACEHOLDER
   ----------------------------------------------------------------------------
   Each feature has a placeholder block that doubles as a shot list. The
   data-media-type attribute drives the icon and label so we know at a
   glance whether the asset should be a still or a short clip.
   ============================================================================ */

.tour-feature-media {
  margin: 1.5rem 0 0;
}

.tour-media-placeholder {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 0.85rem;
  padding: 1.4rem 1.5rem;
  background:
    repeating-linear-gradient(
      135deg,
      rgba(9, 105, 218, 0.025) 0px,
      rgba(9, 105, 218, 0.025) 8px,
      transparent 8px,
      transparent 16px
    ),
    var(--tour-surface);
  border: 1.5px dashed var(--tour-border-strong);
  border-radius: var(--tour-radius);
  min-height: 180px;
  position: relative;
}

.tour-media-placeholder--video {
  background:
    repeating-linear-gradient(
      135deg,
      rgba(99, 102, 241, 0.035) 0px,
      rgba(99, 102, 241, 0.035) 8px,
      transparent 8px,
      transparent 16px
    ),
    var(--tour-surface);
}

.tour-media-meta {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--tour-ink-tertiary);
}

.tour-media-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  border-radius: 6px;
  background: var(--tour-primary-soft);
  color: var(--tour-primary);
  flex: 0 0 auto;
}

.tour-media-placeholder--video .tour-media-icon {
  background: rgba(99, 102, 241, 0.10);
  color: #4f46e5;
}

.tour-media-icon svg {
  width: 16px;
  height: 16px;
}

.tour-media-type-label {
  display: inline-block;
}

.tour-media-dim {
  margin-left: auto;
  font-family: var(--tour-font-mono);
  font-size: 0.72rem;
  color: var(--tour-ink-tertiary);
  text-transform: none;
  letter-spacing: 0;
  font-weight: 500;
}

.tour-media-shot {
  font-size: 0.92rem;
  color: var(--tour-ink-secondary);
  line-height: 1.55;
  margin: 0;
}

.tour-media-shot strong {
  color: var(--tour-ink);
  font-weight: 600;
}

/* ============================================================================
   BACK TO TOC
   ============================================================================ */

.tour-back-to-toc {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  margin-top: 1.5rem;
  padding: 0.4rem 0.7rem;
  font-size: 0.82rem;
  color: var(--tour-ink-tertiary);
  border-radius: 6px;
  transition: background 0.15s, color 0.15s;
}

.tour-back-to-toc:hover {
  background: var(--tour-surface-alt);
  color: var(--tour-primary);
  text-decoration: none;
}

.tour-back-to-toc svg {
  width: 14px;
  height: 14px;
}

/* ============================================================================
   FOOTER CTA
   ============================================================================ */

.tour-footer-cta {
  margin-top: 4rem;
  padding: 2.5rem 1.5rem;
  background:
    radial-gradient(circle at 20% 30%, rgba(9, 105, 218, 0.08), transparent 60%),
    radial-gradient(circle at 80% 70%, rgba(99, 102, 241, 0.06), transparent 60%),
    var(--tour-surface-alt);
  border: 1px solid var(--tour-border);
  border-radius: var(--tour-radius-lg);
  text-align: center;
}

.tour-footer-cta-title {
  font-family: var(--tour-font);
  font-weight: 700;
  font-size: clamp(1.3rem, 2.5vw, 1.6rem);
  line-height: 1.3;
  color: var(--tour-ink);
  margin: 0 auto 1.5rem;
  letter-spacing: -0.015em;
  max-width: 60ch;
}

.tour-footer-cta-button {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.7rem 1.4rem;
  font-size: 0.95rem;
  font-weight: 600;
  color: #fff;
  background: var(--tour-primary);
  border-radius: 8px;
  letter-spacing: -0.01em;
  transition: background 0.15s, transform 0.1s;
}

.tour-footer-cta-button:hover {
  background: var(--tour-primary-hover);
  color: #fff;
  text-decoration: none;
}

.tour-footer-cta-button:active {
  transform: scale(0.98);
}

.tour-page-footer {
  max-width: var(--tour-content-max);
  margin: 0 auto;
  padding: 2rem 1.5rem 3rem;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  font-size: 0.82rem;
  color: var(--tour-ink-tertiary);
  border-top: 1px solid var(--tour-border);
}

.tour-page-footer a {
  color: var(--tour-ink-secondary);
}

/* ============================================================================
   RESPONSIVE
   ============================================================================ */

@media (max-width: 720px) {
  .tour-hero {
    padding: 3rem 1.25rem 2rem;
  }

  .tour-toc {
    margin-top: 1.75rem;
    padding: 1.2rem 1.1rem;
  }

  .tour-toc-list {
    grid-template-columns: 1fr;
    gap: 0.2rem;
  }

  main.tour-main {
    padding: 2rem 1.25rem 3.5rem;
  }

  :root {
    --tour-section-gap: 3rem;
    --tour-feature-gap: 2rem;
  }

  .tour-feature-header {
    flex-wrap: wrap;
    gap: 0.5rem 0.7rem;
  }

  .tour-media-placeholder {
    padding: 1.1rem 1.1rem;
    min-height: 140px;
  }

  .tour-media-meta {
    flex-wrap: wrap;
  }

  .tour-media-dim {
    margin-left: 0;
    width: 100%;
  }

  .tour-nav-inner {
    height: 64px;
  }

  .tour-nav-logo {
    --brand-logo-display-height: 44px;
  }
}

/* ============================================================================
   PRINT
   ============================================================================ */

@media print {
  .tour-nav,
  .tour-back-to-toc,
  .tour-footer-cta,
  .tour-page-footer {
    display: none;
  }

  .tour-hero {
    padding: 1rem 0;
    background: transparent;
    border-bottom: 1px solid #ccc;
  }

  .tour-toc {
    background: transparent;
    border-color: #ccc;
  }

  .tour-feature {
    page-break-inside: avoid;
    border-bottom-color: #ccc;
  }

  .tour-media-placeholder {
    background: #f5f5f5;
    border-color: #aaa;
  }
}