/* ==========================================================================
   Poetrish — Official Landing Page Stylesheet
   Aligned with Poetrish's Warm Paper & Night Slate single-canvas design tokens.
   Adheres to Modern Web Guidance: color-scheme, light-dark(), CLS-free 16:9 stage.
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Newsreader:ital,opsz,wght@0,6..72,400..600;1,6..72,400&family=Inter:wght@400;500;600&family=JetBrains+Mono:wght@400;500&display=swap');

:root {
  color-scheme: light dark;

  /* Typography */
  --font-serif: Charter, "New York", "Newsreader", Georgia, serif;
  --font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-mono: "JetBrains Mono", "SF Mono", Menlo, Consolas, monospace;

  /* Layout & Geometry */
  --container-max: 1120px;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --radius-pill: 9999px;

  /* Warm Paper Theme (Light Mode — synced with src/app.css) */
  --bg-light: #faf8f5;
  --surface-light: #f2efe9;
  --card-light: #ffffff;
  --border-light: #e4ded4;
  --border-subtle-light: #ece7df;
  --text-primary-light: #282522;
  --text-secondary-light: #6e6760;
  --text-muted-light: #9e968c;
  --accent-light: #8b5e3c;
  --accent-hover-light: #764f32;
  --accent-text-on-primary-light: #ffffff;
  --accent-tint-light: rgba(139, 94, 60, 0.1);
  --accent-border-light: rgba(139, 94, 60, 0.28);
  --shadow-light: 0 14px 36px -12px rgba(40, 37, 34, 0.08);

  /* Night Slate Theme (Dark Mode — synced with src/app.css) */
  --bg-dark: #141518;
  --surface-dark: #1b1c20;
  --card-dark: #202227;
  --border-dark: #2d3038;
  --border-subtle-dark: #24262d;
  --text-primary-dark: #dedbd6;
  --text-secondary-dark: #9ea0a8;
  --text-muted-dark: #686c7a;
  --accent-dark: #c8a97e;
  --accent-hover-dark: #b5956a;
  --accent-text-on-primary-dark: #141518;
  --accent-tint-dark: rgba(200, 169, 126, 0.13);
  --accent-border-dark: rgba(200, 169, 126, 0.32);
  --shadow-dark: 0 18px 42px -12px rgba(0, 0, 0, 0.45);

  /* Dynamic light-dark() tokens */
  --bg: light-dark(var(--bg-light), var(--bg-dark));
  --surface: light-dark(var(--surface-light), var(--surface-dark));
  --card: light-dark(var(--card-light), var(--card-dark));
  --border: light-dark(var(--border-light), var(--border-dark));
  --border-subtle: light-dark(var(--border-subtle-light), var(--border-subtle-dark));
  --text-primary: light-dark(var(--text-primary-light), var(--text-primary-dark));
  --text-secondary: light-dark(var(--text-secondary-light), var(--text-secondary-dark));
  --text-muted: light-dark(var(--text-muted-light), var(--text-muted-dark));
  --accent: light-dark(var(--accent-light), var(--accent-dark));
  --accent-hover: light-dark(var(--accent-hover-light), var(--accent-hover-dark));
  --accent-on-primary: light-dark(var(--accent-text-on-primary-light), var(--accent-text-on-primary-dark));
  --accent-tint: light-dark(var(--accent-tint-light), var(--accent-tint-dark));
  --accent-border: light-dark(var(--accent-border-light), var(--accent-border-dark));
  --shadow: light-dark(var(--shadow-light), var(--shadow-dark));

  accent-color: var(--accent);
}

/* Modern Web Guidance: Reflect <meta name="color-scheme"> override in CSS */
:root {
  &:has(> head > meta[name="color-scheme"][content="dark"]) {
    color-scheme: dark;
  }
  &:has(> head > meta[name="color-scheme"][content="light"]) {
    color-scheme: light;
  }
}

/* Fallback for older browsers without light-dark() */
@media (prefers-color-scheme: dark) {
  :root:not(:has(> head > meta[name="color-scheme"][content="light"])) {
    --bg: var(--bg-dark);
    --surface: var(--surface-dark);
    --card: var(--card-dark);
    --border: var(--border-dark);
    --border-subtle: var(--border-subtle-dark);
    --text-primary: var(--text-primary-dark);
    --text-secondary: var(--text-secondary-dark);
    --text-muted: var(--text-muted-dark);
    --accent: var(--accent-dark);
    --accent-hover: var(--accent-hover-dark);
    --accent-on-primary: var(--accent-text-on-primary-dark);
    --accent-tint: var(--accent-tint-dark);
    --accent-border: var(--accent-border-dark);
    --shadow: var(--shadow-dark);
  }
}

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

html {
  font-family: var(--font-sans);
  background-color: var(--bg);
  color: var(--text-primary);
  line-height: 1.6;
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

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

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

a:focus-visible,
button:focus-visible,
select:focus-visible,
summary:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.font-serif { font-family: var(--font-serif); }
.font-mono { font-family: var(--font-mono); }

/* Lucide Vector Icons */
.icon {
  width: 1.125rem;
  height: 1.125rem;
  stroke: currentColor;
  stroke-width: 1.75;
  stroke-linecap: round;
  stroke-linejoin: round;
  fill: none;
  flex-shrink: 0;
}

.icon-sm {
  width: 0.95rem;
  height: 0.95rem;
}

.icon-lg {
  width: 1.35rem;
  height: 1.35rem;
}

/* Container */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: 1.5rem;
}

/* Sticky Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: color-mix(in srgb, var(--bg) 90%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-subtle);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 4rem;
  gap: 1rem;
}

.brand-link {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  color: var(--text-primary);
  text-decoration: none;
}

.brand-icon {
  width: 2rem;
  height: 2rem;
  border-radius: var(--radius-sm);
}

.brand-name {
  font-family: var(--font-serif);
  font-size: 1.3rem;
  font-weight: 600;
  letter-spacing: -0.02em;
}

.brand-version {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-secondary);
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 0.12rem 0.45rem;
  border-radius: var(--radius-pill);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.4rem;
  list-style: none;
}

.nav-link {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
}

.nav-link:hover {
  color: var(--text-primary);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

/* Modern Language Selector */
.lang-select-wrap {
  position: relative;
  display: inline-flex;
  align-items: center;
}

.lang-select {
  appearance: none;
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 0.8rem;
  font-weight: 500;
  padding: 0.38rem 1.8rem 0.38rem 0.65rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.12s ease;
}

.lang-select:hover {
  border-color: var(--accent-border);
}

.lang-select-arrow {
  position: absolute;
  right: 0.5rem;
  pointer-events: none;
  color: var(--text-muted);
}

/* Theme Button */
.theme-toggle-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  padding: 0.38rem 0.7rem;
  border-radius: var(--radius-sm);
  font-family: var(--font-sans);
  font-size: 0.82rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.15s ease;
}

.theme-toggle-btn:hover {
  color: var(--text-primary);
  border-color: var(--accent-border);
}

/* Hero Section */
.hero-section {
  padding-block: 4rem 2.5rem;
  text-align: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--accent);
  background: var(--accent-tint);
  border: 1px solid var(--accent-border);
  padding: 0.3rem 0.85rem;
  border-radius: var(--radius-pill);
  margin-bottom: 1.5rem;
}

.hero-title {
  font-family: var(--font-serif);
  font-size: clamp(2.15rem, 4.5vw, 3.35rem);
  font-weight: 600;
  line-height: 1.15;
  letter-spacing: -0.025em;
  color: var(--text-primary);
  max-width: 24ch;
  margin-inline: auto;
  margin-bottom: 1.25rem;
}

.hero-subtitle {
  font-size: 1.12rem;
  line-height: 1.65;
  color: var(--text-secondary);
  max-width: 64ch;
  margin-inline: auto;
  margin-bottom: 2rem;
}

.hero-cta-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 0.85rem;
  margin-bottom: 1rem;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  background: var(--accent);
  color: var(--accent-on-primary);
  padding: 0.8rem 1.5rem;
  font-size: 0.96rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  border: 1px solid var(--accent);
  cursor: pointer;
  text-decoration: none;
  transition: background-color 0.15s ease, transform 0.08s ease;
}

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

.btn-primary:active {
  transform: translateY(1px);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  background: var(--card);
  color: var(--text-primary);
  padding: 0.8rem 1.4rem;
  font-size: 0.96rem;
  font-weight: 500;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  cursor: pointer;
  text-decoration: none;
  transition: all 0.15s ease;
}

.btn-secondary:hover {
  background: var(--surface);
  border-color: var(--accent-border);
  color: var(--text-primary);
}

.hero-note {
  font-size: 0.82rem;
  color: var(--text-muted);
}

/* ==========================================================================
   1920x1080 (16:9) Screenshot Carousel Section
   ========================================================================== */

.gallery-section {
  padding-block: 1.5rem 4.5rem;
  border-bottom: 1px solid var(--border-subtle);
}

.section-header {
  margin-bottom: 2rem;
}

.section-header.centered {
  text-align: center;
}

.section-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent);
  margin-bottom: 0.45rem;
}

.section-title {
  font-family: var(--font-serif);
  font-size: clamp(1.75rem, 3vw, 2.25rem);
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  margin-bottom: 0.6rem;
}

.section-lead {
  font-size: 1rem;
  color: var(--text-secondary);
  max-width: 62ch;
}

.section-header.centered .section-lead {
  margin-inline: auto;
}

/* Carousel Tabs */
.carousel-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin-bottom: 1rem;
  justify-content: center;
}

.carousel-tab {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  padding: 0.48rem 0.9rem;
  border-radius: var(--radius-sm);
  font-family: var(--font-sans);
  font-size: 0.83rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.15s ease;
}

.carousel-tab:hover {
  color: var(--text-primary);
  border-color: var(--accent-border);
}

.carousel-tab.active {
  background: var(--accent-tint);
  border-color: var(--accent);
  color: var(--accent);
  font-weight: 600;
}

/* 16:9 Stage (1920x1080 exact ratio to prevent CLS) */
.carousel-frame {
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--card);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.carousel-viewport {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  background: var(--surface);
  overflow: hidden;
}

.carousel-slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.22s ease;
  display: flex;
  align-items: center;
  justify-content: center;
}

.carousel-slide.active {
  opacity: 1;
  pointer-events: auto;
}

/* Eager & smooth display for all 6 screenshots */
.slide-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* Structured 1920x1080 Placeholder Blueprint */
.slide-placeholder {
  width: 100%;
  height: 100%;
  padding: 2.5rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  background:
    radial-gradient(circle at 50% 35%, var(--accent-tint), transparent 70%),
    linear-gradient(to right, var(--border-subtle) 1px, transparent 1px),
    linear-gradient(to bottom, var(--border-subtle) 1px, transparent 1px);
  background-size: 100% 100%, 48px 48px, 48px 48px;
}

.slide-placeholder.is-hidden {
  display: none !important;
}

.placeholder-card {
  max-width: 580px;
  background: color-mix(in srgb, var(--card) 92%, transparent);
  backdrop-filter: blur(6px);
  border: 1px dashed var(--accent-border);
  border-radius: var(--radius-md);
  padding: 2rem;
  box-shadow: var(--shadow);
}

.placeholder-icon-wrap {
  width: 3rem;
  height: 3rem;
  border-radius: var(--radius-md);
  background: var(--accent-tint);
  color: var(--accent);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1rem;
}

.placeholder-res-badge {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--accent);
  background: var(--accent-tint);
  border: 1px solid var(--accent-border);
  padding: 0.18rem 0.55rem;
  border-radius: var(--radius-pill);
  margin-bottom: 0.65rem;
}

.placeholder-slide-title {
  font-family: var(--font-serif);
  font-size: 1.35rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}

.placeholder-guide {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.55;
  margin-bottom: 1.15rem;
}

.placeholder-path-box {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 0.4rem 0.75rem;
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-primary);
}

/* Carousel Prev/Next Controls */
.carousel-nav-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 2.6rem;
  height: 2.6rem;
  border-radius: 50%;
  background: color-mix(in srgb, var(--card) 88%, transparent);
  backdrop-filter: blur(4px);
  border: 1px solid var(--border);
  color: var(--text-primary);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 10;
  transition: all 0.15s ease;
}

.carousel-nav-btn:hover {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--accent-on-primary);
}

.carousel-nav-btn.prev { left: 1rem; }
.carousel-nav-btn.next { right: 1rem; }

/* Caption Bar Below Carousel */
.carousel-caption-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.25rem 1.5rem;
  background: var(--card);
  border-top: 1px solid var(--border);
}

.caption-content {
  max-width: 72ch;
}

.caption-header-row {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  margin-bottom: 0.25rem;
}

.caption-counter {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--accent);
  background: var(--accent-tint);
  padding: 0.12rem 0.5rem;
  border-radius: var(--radius-sm);
}

.caption-title {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--text-primary);
}

.caption-text {
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.55;
}

.carousel-dots {
  display: flex;
  align-items: center;
  gap: 0.45rem;
}

.carousel-dot {
  width: 0.55rem;
  height: 0.55rem;
  border-radius: 50%;
  background: var(--border);
  border: none;
  cursor: pointer;
  transition: all 0.15s ease;
}

.carousel-dot.active {
  width: 1.4rem;
  border-radius: var(--radius-pill);
  background: var(--accent);
}

/* ==========================================================================
   Core Capabilities Grid
   ========================================================================== */

.features-section {
  padding-block: 4.5rem;
  border-bottom: 1px solid var(--border-subtle);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(310px, 1fr));
  gap: 1.5rem;
}

.feature-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 1.65rem;
  transition: border-color 0.15s ease;
}

.feature-card:hover {
  border-color: var(--accent-border);
}

.feature-icon-box {
  width: 2.4rem;
  height: 2.4rem;
  border-radius: var(--radius-sm);
  background: var(--accent-tint);
  color: var(--accent);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1rem;
}

.feature-title {
  font-family: var(--font-serif);
  font-size: 1.22rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.45rem;
}

.feature-desc {
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ==========================================================================
   Workspace Architecture & Offline Privacy Strip
   ========================================================================== */

.workflow-section {
  padding-block: 4.5rem;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}

.workflow-split {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 2rem;
  align-items: stretch;
}

.workflow-panel {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 2rem;
}

.panel-heading {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-serif);
  font-size: 1.3rem;
  font-weight: 600;
  margin-bottom: 1.25rem;
  color: var(--text-primary);
}

.panes-diagram {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.85rem;
}

.pane-box {
  background: var(--surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 1rem;
}

.pane-box-title {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--accent);
  margin-bottom: 0.3rem;
}

.pane-box-desc {
  font-size: 0.86rem;
  color: var(--text-secondary);
  line-height: 1.45;
}

.privacy-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.privacy-item {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  font-size: 0.93rem;
  color: var(--text-secondary);
  line-height: 1.55;
}

.privacy-item .icon {
  color: var(--accent);
  margin-top: 0.2rem;
}

/* ==========================================================================
   Pricing & Licensing Section
   ========================================================================== */

.pricing-section {
  padding-block: 4.5rem;
  border-bottom: 1px solid var(--border-subtle);
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 1.75rem;
  max-width: 860px;
  margin-inline: auto;
}

.pricing-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2.25rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.pricing-card.featured {
  border: 2px solid var(--accent);
  box-shadow: var(--shadow);
}

.plan-badge {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--accent);
  background: var(--accent-tint);
  padding: 0.22rem 0.65rem;
  border-radius: var(--radius-pill);
  margin-bottom: 0.85rem;
}

.plan-name {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--text-primary);
}

.plan-price {
  font-family: var(--font-serif);
  font-size: 3.1rem;
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1.05;
  margin-block: 0.75rem 0.25rem;
}

.plan-period {
  font-size: 0.88rem;
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
}

.plan-features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-bottom: 2rem;
  border-top: 1px solid var(--border-subtle);
  padding-top: 1.25rem;
}

.plan-feature-item {
  display: flex;
  align-items: flex-start;
  gap: 0.65rem;
  font-size: 0.92rem;
  color: var(--text-primary);
}

.plan-feature-item .icon {
  color: var(--accent);
  margin-top: 0.18rem;
}

.plan-note {
  font-size: 0.78rem;
  color: var(--text-muted);
  text-align: center;
  margin-top: 0.75rem;
}

/* ==========================================================================
   Refined Direct Downloads Section & Format Selector
   ========================================================================== */

.downloads-section {
  padding-block: 4.5rem;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}

.downloads-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(310px, 1fr));
  gap: 1.5rem;
  margin-bottom: 1.75rem;
}

.download-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.download-card.recommended-os {
  border: 2px solid var(--accent);
  box-shadow: var(--shadow);
}

/* Header row with zero overlap guaranteed */
.os-card-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 0.65rem;
}

.os-title-group {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.os-name {
  font-family: var(--font-serif);
  font-size: 1.35rem;
  font-weight: 600;
  line-height: 1.2;
}

.os-rec-badge {
  display: none;
  white-space: nowrap;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 500;
  color: var(--accent);
  background: var(--accent-tint);
  border: 1px solid var(--accent-border);
  padding: 0.2rem 0.55rem;
  border-radius: var(--radius-pill);
}

.download-card.recommended-os .os-rec-badge {
  display: inline-block;
}

.os-req {
  font-size: 0.86rem;
  color: var(--text-secondary);
  margin-bottom: 1.35rem;
  line-height: 1.5;
  min-height: 2.6rem;
}

/* Package Format Dropdown Picker */
.format-picker-box {
  margin-bottom: 1rem;
}

.format-picker-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.73rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  margin-bottom: 0.35rem;
}

.format-select-wrap {
  position: relative;
  display: flex;
  align-items: center;
}

.format-select {
  width: 100%;
  appearance: none;
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 0.86rem;
  padding: 0.6rem 2rem 0.6rem 0.85rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.15s ease;
}

.format-select:hover {
  border-color: var(--accent-border);
}

.format-select-arrow {
  position: absolute;
  right: 0.75rem;
  pointer-events: none;
  color: var(--text-secondary);
}

.os-actions {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.checksum-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.9rem 1.25rem;
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.checksum-link {
  color: var(--text-secondary);
  text-decoration: underline;
  text-underline-offset: 3px;
  font-family: var(--font-mono);
}

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

/* ==========================================================================
   FAQ Section
   ========================================================================== */

.faq-section {
  padding-block: 4.5rem;
}

.faq-list {
  max-width: 760px;
  margin-inline: auto;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.faq-item {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.faq-question {
  padding: 1.1rem 1.35rem;
  font-weight: 600;
  font-size: 0.98rem;
  color: var(--text-primary);
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.faq-question::-webkit-details-marker {
  display: none;
}

.faq-answer {
  padding: 0 1.35rem 1.2rem;
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ==========================================================================
   Contact Section
   ========================================================================== */

.contact-section {
  padding-block: 4.5rem;
  background: var(--surface);
  border-top: 1px solid var(--border-subtle);
}

.contact-card {
  max-width: 760px;
  margin-inline: auto;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  box-shadow: var(--shadow);
}

.contact-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.25rem;
}

.contact-icon-box {
  width: 3rem;
  height: 3rem;
  border-radius: var(--radius-md);
  background: var(--accent-tint);
  color: var(--accent);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.contact-lead {
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 1.75rem;
}

.contact-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.85rem;
  margin-bottom: 1rem;
}

.contact-email-btn {
  font-family: var(--font-mono);
  font-size: 0.95rem;
  letter-spacing: -0.01em;
}

.copy-email-btn {
  cursor: pointer;
}

.contact-note {
  font-size: 0.82rem;
  color: var(--text-muted);
}

/* ==========================================================================
   Native Checkout Dialog
   ========================================================================== */

.checkout-dialog {
  margin: auto;
  max-width: 480px;
  width: calc(100% - 2rem);
  background: var(--card);
  color: var(--text-primary);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 2rem;
  box-shadow: var(--shadow);
}

.checkout-dialog::backdrop {
  background: rgba(0, 0, 0, 0.55);
  backdrop-filter: blur(3px);
}

.dialog-title {
  font-family: var(--font-serif);
  font-size: 1.4rem;
  font-weight: 600;
  margin-bottom: 0.65rem;
}

.dialog-body {
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 1.25rem;
}

.dialog-code-note {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.85rem 1rem;
  font-size: 0.82rem;
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
}

.dialog-actions {
  display: flex;
  justify-content: flex-end;
  gap: 0.65rem;
}

/* ==========================================================================
   Footer
   ========================================================================== */

.site-footer {
  margin-top: auto;
  border-top: 1px solid var(--border-subtle);
  background: var(--surface);
  padding-block: 2.5rem;
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1.25rem;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 1.25rem;
  list-style: none;
}

.footer-links a {
  color: var(--text-secondary);
}

.footer-links a:hover {
  color: var(--text-primary);
}

/* ==========================================================================
   Legal & Policy Pages (terms.html, privacy.html, refund.html)
   ========================================================================== */

.legal-section {
  padding-block: 3.5rem 5rem;
}

.legal-container {
  max-width: 780px;
  margin-inline: auto;
}

.legal-subnav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 2rem;
  padding-bottom: 1.25rem;
  border-bottom: 1px solid var(--border-subtle);
}

.legal-tab {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.45rem 0.9rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text-secondary);
  font-size: 0.85rem;
  font-weight: 500;
  text-decoration: none;
  transition: border-color 0.15s ease, color 0.15s ease, background-color 0.15s ease;
}

.legal-tab:hover {
  color: var(--text-primary);
  border-color: var(--accent);
}

.legal-tab.active {
  background: var(--accent-soft);
  border-color: var(--accent);
  color: var(--text-primary);
}

.legal-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: clamp(1.5rem, 4vw, 2.75rem);
  box-shadow: var(--shadow);
}

.legal-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent);
  margin-bottom: 0.5rem;
}

.legal-title {
  font-family: var(--font-serif);
  font-size: clamp(1.75rem, 3.2vw, 2.35rem);
  font-weight: 600;
  line-height: 1.2;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}

.legal-meta {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 2rem;
  padding-bottom: 1.25rem;
  border-bottom: 1px solid var(--border-subtle);
}

.legal-prose h2 {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-top: 1.85rem;
  margin-bottom: 0.65rem;
}

.legal-prose h2:first-child {
  margin-top: 0;
}

.legal-prose p {
  font-size: 0.95rem;
  line-height: 1.7;
  color: var(--text-secondary);
  margin-bottom: 1rem;
}

.legal-prose ul {
  margin: 0.5rem 0 1.25rem 1.25rem;
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.7;
}

.legal-prose li {
  margin-bottom: 0.4rem;
}

.legal-prose strong {
  color: var(--text-primary);
}

.legal-callout {
  background: var(--surface);
  border-left: 3px solid var(--accent);
  padding: 1rem 1.25rem;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  margin-block: 1.25rem;
}

.legal-callout p {
  margin-bottom: 0;
  color: var(--text-primary);
  font-size: 0.92rem;
}

/* Responsive Adjustments */
@media (max-width: 860px) {
  .nav-links {
    display: none;
  }

  .workflow-split {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .hero-section {
    padding-block: 2.75rem 2rem;
  }

  .hero-cta-row {
    flex-direction: column;
    align-items: stretch;
  }

  .panes-diagram {
    grid-template-columns: 1fr;
  }

  .slide-placeholder {
    padding: 1rem;
  }

  .placeholder-card {
    padding: 1.15rem;
  }

  .placeholder-guide {
    display: none;
  }

  .carousel-nav-btn {
    width: 2.1rem;
    height: 2.1rem;
  }

  .os-card-top {
    flex-direction: column;
    align-items: flex-start;
  }
}