/* AnyLinux Metadata Portal Stylesheet
   Aesthetic: Inspired by xapp-project.org - Calm, organic linen background,
   refined forest and leaf greens, crisp card surfaces, and dark contrast code panels.
   Strict Standard: Zero emojis, zero ASCII box-drawing characters.
   Fully Responsive: Mobile-first resilience from 320px to 2560px+.
*/

:root {
  color-scheme: light;

  /* Surface & Canvas Colors (XApp Warm Linen & Paper Palette) */
  --bg: #f4f2ed;
  --bg-subtle: #eae7df;
  --surface: #ffffff;
  --surface-raised: #fbfaf8;
  --surface-inset: #edeae3;
  --border: #d8d5cf;
  --border-light: #e7e4dc;
  --border-dark: #b8b4ab;
  --header-bg: rgba(255, 255, 255, 0.94);

  /* Signature Green Brand Tokens */
  --green-deep: #467d21;
  --green: #78b63c;
  --green-hover: #3b691c;
  --green-soft: #eaf3e1;
  --green-border: #c8e2b2;
  --green-glow: #d9e9cb;

  /* Semantic Core Tokens */
  --primary: var(--green-deep);
  --primary-hover: var(--green-hover);
  --primary-rgb: 70, 125, 33;
  --accent: var(--green);
  --accent-soft: var(--green-soft);

  /* Functional Alert & Diagnostic Colors (Calm & Accessible) */
  --success: #2e7d32;
  --success-bg: #eaf5ea;
  --success-border: #b7dfb9;

  --warning: #b45309;
  --warning-bg: #fef3c7;
  --warning-border: #fcd34d;
  --warning-text: #92400e;

  --danger: #b91c1c;
  --danger-bg: #fef2f2;
  --danger-border: #fecaca;

  /* Typography Colors (High-readability charcoal ink) */
  --ink: #17191d;
  --text-main: #17191d;
  --text-secondary: #4f535b;
  --text-muted: #5d626b;
  --text-dim: #555962;

  /* Technical Contrast Container (XApp Dark Panel for Code / JSON) */
  --panel: #23262b;
  --panel-border: #333840;
  --code-text: #eaf3e1;
  --code-keyword: #9ee37d;
  --code-string: #c8e6a0;

  /* Button hovers & contrasts */
  --btn-secondary-hover-bg: #dbeece;
  --card-hover-border: #b3d497;
  --btn-primary-text: #ffffff;

  /* Fonts */
  --font-sans: 'DM Sans', 'Manrope', system-ui, -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', 'SF Mono', monospace;

  /* Border Radii */
  --radius-xs: 4px;
  --radius-sm: 6px;
  --radius: 10px;
  --radius-lg: 14px;
  --radius-xl: 18px;
  --radius-pill: 9999px;

  /* Elevation Shadows */
  --shadow-xs: 0 1px 2px rgba(23, 25, 29, 0.04);
  --shadow-sm: 0 2px 6px rgba(23, 25, 29, 0.05), 0 1px 2px rgba(23, 25, 29, 0.04);
  --shadow: 0 4px 14px rgba(23, 25, 29, 0.06), 0 1px 3px rgba(23, 25, 29, 0.04);
  --shadow-lg: 0 10px 28px rgba(23, 25, 29, 0.08), 0 2px 6px rgba(23, 25, 29, 0.04);
  --shadow-modal: 0 20px 48px rgba(23, 25, 29, 0.16), 0 4px 12px rgba(23, 25, 29, 0.08);
}

[data-theme="dark"] {
  color-scheme: dark;

  /* Surface & Canvas Colors (Organic Charcoal & Slate) */
  --bg: #14171a;
  --bg-subtle: #1c2026;
  --surface: #22262d;
  --surface-raised: #2a2f38;
  --surface-inset: #181b20;
  --border: #333945;
  --border-light: #2a303b;
  --border-dark: #454d5d;
  --header-bg: rgba(20, 23, 26, 0.92);

  /* Signature Green Brand Tokens (Vibrant & Accessible against Dark Surfaces) */
  --green-deep: #78b63c;
  --green: #86c747;
  --green-hover: #9ee35d;
  --green-soft: rgba(120, 182, 60, 0.15);
  --green-border: rgba(120, 182, 60, 0.32);
  --green-glow: rgba(120, 182, 60, 0.25);

  /* Semantic Core Tokens */
  --primary: var(--green);
  --primary-hover: var(--green-hover);
  --primary-rgb: 134, 199, 71;
  --accent: var(--green);
  --accent-soft: var(--green-soft);

  /* Functional Alert & Diagnostic Colors */
  --success: #4ade80;
  --success-bg: rgba(74, 222, 128, 0.12);
  --success-border: rgba(74, 222, 128, 0.28);

  --warning: #fbbf24;
  --warning-bg: rgba(251, 191, 36, 0.12);
  --warning-border: rgba(251, 191, 36, 0.28);
  --warning-text: #fde047;

  --danger: #f87171;
  --danger-bg: rgba(248, 113, 113, 0.12);
  --danger-border: rgba(248, 113, 113, 0.28);

  /* Typography Colors (High-readability Off-White) */
  --ink: #f1f5f9;
  --text-main: #e2e8f0;
  --text-secondary: #94a3b8;
  --text-muted: #cbd5e1;
  --text-dim: #94a3b8;

  /* Technical Contrast Container */
  --panel: #101215;
  --panel-border: #282e38;
  --code-text: #e2e8f0;
  --code-keyword: #86c747;
  --code-string: #bbf7d0;

  /* Button hovers & contrasts */
  --btn-secondary-hover-bg: rgba(120, 182, 60, 0.24);
  --card-hover-border: #5a8a2d;
  --btn-primary-text: #14171a;

  /* Elevation Shadows */
  --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.35);
  --shadow-sm: 0 2px 6px rgba(0, 0, 0, 0.4), 0 1px 2px rgba(0, 0, 0, 0.3);
  --shadow: 0 4px 14px rgba(0, 0, 0, 0.5), 0 1px 3px rgba(0, 0, 0, 0.35);
  --shadow-lg: 0 10px 28px rgba(0, 0, 0, 0.6), 0 2px 6px rgba(0, 0, 0, 0.4);
  --shadow-modal: 0 20px 48px rgba(0, 0, 0, 0.8), 0 4px 12px rgba(0, 0, 0, 0.5);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    color-scheme: dark;

    /* Surface & Canvas Colors (Organic Charcoal & Slate) */
    --bg: #14171a;
    --bg-subtle: #1c2026;
    --surface: #22262d;
    --surface-raised: #2a2f38;
    --surface-inset: #181b20;
    --border: #333945;
    --border-light: #2a303b;
    --border-dark: #454d5d;
    --header-bg: rgba(20, 23, 26, 0.92);

    /* Signature Green Brand Tokens (Vibrant & Accessible against Dark Surfaces) */
    --green-deep: #78b63c;
    --green: #86c747;
    --green-hover: #9ee35d;
    --green-soft: rgba(120, 182, 60, 0.15);
    --green-border: rgba(120, 182, 60, 0.32);
    --green-glow: rgba(120, 182, 60, 0.25);

    /* Semantic Core Tokens */
    --primary: var(--green);
    --primary-hover: var(--green-hover);
    --primary-rgb: 134, 199, 71;
    --accent: var(--green);
    --accent-soft: var(--green-soft);

    /* Functional Alert & Diagnostic Colors */
    --success: #4ade80;
    --success-bg: rgba(74, 222, 128, 0.12);
    --success-border: rgba(74, 222, 128, 0.28);

    --warning: #fbbf24;
    --warning-bg: rgba(251, 191, 36, 0.12);
    --warning-border: rgba(251, 191, 36, 0.28);
    --warning-text: #fde047;

    --danger: #f87171;
    --danger-bg: rgba(248, 113, 113, 0.12);
    --danger-border: rgba(248, 113, 113, 0.28);

    /* Typography Colors (High-readability Off-White) */
    --ink: #f1f5f9;
    --text-main: #e2e8f0;
    --text-secondary: #94a3b8;
    --text-muted: #cbd5e1;
    --text-dim: #94a3b8;

    /* Technical Contrast Container */
    --panel: #101215;
    --panel-border: #282e38;
    --code-text: #e2e8f0;
    --code-keyword: #86c747;
    --code-string: #bbf7d0;

    /* Button hovers & contrasts */
    --btn-secondary-hover-bg: rgba(120, 182, 60, 0.24);
    --card-hover-border: #5a8a2d;
    --btn-primary-text: #14171a;

    /* Elevation Shadows */
    --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.35);
    --shadow-sm: 0 2px 6px rgba(0, 0, 0, 0.4), 0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow: 0 4px 14px rgba(0, 0, 0, 0.5), 0 1px 3px rgba(0, 0, 0, 0.35);
    --shadow-lg: 0 10px 28px rgba(0, 0, 0, 0.6), 0 2px 6px rgba(0, 0, 0, 0.4);
    --shadow-modal: 0 20px 48px rgba(0, 0, 0, 0.8), 0 4px 12px rgba(0, 0, 0, 0.5);
  }
}

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

html {
  scroll-behavior: smooth;
  overflow-x: hidden;
  width: 100%;
}

body {
  background-color: var(--bg);
  color: var(--text-main);
  font-family: var(--font-sans);
  line-height: 1.55;
  min-height: 100vh;
  overflow-x: hidden;
  width: 100%;
  max-width: 100vw;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img,
svg,
video,
canvas {
  max-width: 100%;
  height: auto;
  display: block;
}

input,
textarea,
select,
button {
  font-family: inherit;
  max-width: 100%;
}

/* Screen Reader Accessible Utility Class */
.sr-only {
  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;
}

/* Global Accessible Focus Indicators */
:focus-visible {
  outline: 2px solid var(--green);
  outline-offset: 2px;
}

a {
  color: var(--primary);
  text-decoration: none;
  font-weight: 500;
  transition: color 0.15s ease;
}

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

/* ==========================================================================
   Header Bar
   ========================================================================== */

.app-header {
  background-color: var(--header-bg);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: var(--shadow-xs);
  width: 100%;
}

.header-inner {
  max-width: 1500px;
  margin: 0 auto;
  padding: 0.85rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  min-width: max-content;
}

.brand-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius);
  background: linear-gradient(135deg, var(--green-deep) 0%, var(--green) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #ffffff;
  box-shadow: 0 3px 8px rgba(70, 125, 33, 0.22);
  flex-shrink: 0;
}

.brand-text {
  display: flex;
  flex-direction: column;
}

.brand-title {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--ink);
  letter-spacing: -0.015em;
  white-space: nowrap;
}

.version-tag {
  font-size: 0.7rem;
  font-weight: 700;
  background: var(--green-soft);
  border: 1px solid var(--green-border);
  color: var(--green-deep);
  padding: 0.1rem 0.5rem;
  border-radius: var(--radius-pill);
  font-family: var(--font-mono);
}

.brand-subtitle {
  font-size: 0.775rem;
  color: var(--text-muted);
}

/* Navigation Tabs */
.nav-tabs {
  display: flex;
  gap: 0.35rem;
  align-items: center;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
  -ms-overflow-style: none;
  padding: 0.2rem 0;
}

.nav-tabs::-webkit-scrollbar {
  display: none;
}

.nav-tab {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.5rem 0.95rem;
  border-radius: var(--radius-pill);
  background: transparent;
  border: 1px solid transparent;
  color: var(--text-secondary);
  font-family: inherit;
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
  flex-shrink: 0;
  transition: all 0.15s ease;
}

.nav-tab svg {
  flex-shrink: 0;
}

.nav-tab:hover {
  background: var(--bg-subtle);
  color: var(--text-main);
}

.nav-tab.active {
  background: var(--green-soft);
  border-color: var(--green-border);
  color: var(--green-deep);
  box-shadow: var(--shadow-xs);
}

.nav-tab:focus-visible {
  outline: none;
  border-color: var(--green);
  box-shadow: 0 0 0 3px var(--green-glow);
}

.tab-badge {
  background: var(--bg-subtle);
  color: var(--text-secondary);
  font-size: 0.7rem;
  font-weight: 700;
  padding: 0.12rem 0.5rem;
  border-radius: var(--radius-pill);
  font-family: var(--font-mono);
  flex-shrink: 0;
}

.nav-tab.active .tab-badge {
  background: var(--green-glow);
  color: var(--green-deep);
}

.tab-badge.warning {
  background: var(--warning-bg);
  color: var(--warning-text, var(--warning));
  border: 1px solid var(--warning-border);
  font-weight: 700;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-shrink: 0;
}

/* Theme Toggle Button */
.btn-theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--radius);
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.15s ease;
  padding: 0;
  flex-shrink: 0;
}

.btn-theme-toggle:hover {
  background: var(--bg-subtle);
  color: var(--text-main);
  border-color: var(--border-dark);
}

.btn-theme-toggle:focus-visible {
  outline: none;
  border-color: var(--green);
  box-shadow: 0 0 0 3px var(--green-glow);
}

.btn-theme-toggle .icon-sun,
.btn-theme-toggle .icon-moon {
  transition: transform 0.2s ease, opacity 0.2s ease;
}

/* Default (light mode): show moon, hide sun */
.btn-theme-toggle .icon-sun {
  display: none;
}
.btn-theme-toggle .icon-moon {
  display: block;
}

/* Explicit dark mode */
[data-theme="dark"] .btn-theme-toggle .icon-sun {
  display: block;
}
[data-theme="dark"] .btn-theme-toggle .icon-moon {
  display: none;
}

/* Dark mode OS preference fallback when no explicit light theme set */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .btn-theme-toggle .icon-sun {
    display: block;
  }
  :root:not([data-theme="light"]) .btn-theme-toggle .icon-moon {
    display: none;
  }
}

/* Header Responsive Breakpoints */
@media (max-width: 1300px) {
  .brand-subtitle {
    display: none;
  }

  .header-inner {
    gap: 0.75rem;
    padding: 0.75rem 1.15rem;
  }

  .nav-tab {
    padding: 0.42rem 0.65rem;
    font-size: 0.825rem;
  }
}

@media (max-width: 1080px) {
  .header-inner {
    display: grid;
    grid-template-columns: 1fr auto;
    grid-template-areas:
      "brand actions"
      "tabs tabs";
    gap: 0.65rem 0.75rem;
    padding: 0.75rem 1.25rem;
    align-items: center;
  }

  .brand {
    grid-area: brand;
  }

  .header-actions {
    grid-area: actions;
  }

  .nav-tabs {
    grid-area: tabs;
    width: 100%;
  }
}

@media (max-width: 640px) {
  .header-inner {
    padding: 0.65rem 0.85rem;
    gap: 0.6rem;
  }

  .brand {
    min-width: 0;
    gap: 0.65rem;
  }

  .brand-icon {
    width: 36px;
    height: 36px;
  }

  .brand-title {
    font-size: 1rem;
    gap: 0.4rem;
  }

  .brand-subtitle {
    display: none;
  }

  .version-tag {
    font-size: 0.65rem;
    padding: 0.08rem 0.4rem;
  }

  .nav-tab {
    padding: 0.55rem 0.85rem;
    font-size: 0.825rem;
    gap: 0.35rem;
    min-height: 44px;
    box-sizing: border-box;
  }

  .btn-theme-toggle {
    width: 44px;
    height: 44px;
    min-width: 44px;
    min-height: 44px;
  }

  .header-actions .btn {
    min-height: 44px;
    min-width: 44px;
    padding: 0.4rem 0.65rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }

  .header-actions .btn-text {
    display: none;
  }
}

@media (max-width: 480px) {
  .version-tag {
    display: none;
  }

  .header-actions {
    gap: 0.45rem;
  }

  .btn-theme-toggle {
    width: 44px;
    height: 44px;
    min-width: 44px;
    min-height: 44px;
  }
}

/* ==========================================================================
   Metrics Ribbon
   ========================================================================== */

.metrics-ribbon {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: 0.75rem 1.5rem;
  box-shadow: var(--shadow-xs);
  width: 100%;
}

.metrics-inner {
  max-width: 1500px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 1.75rem;
  flex-wrap: wrap;
}

.metric-item {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  font-size: 0.825rem;
}

.metric-label {
  color: var(--text-muted);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  font-size: 0.75rem;
}

.metric-val {
  font-weight: 700;
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: 0.95rem;
}

.metric-val.success { color: var(--green-deep); }
.metric-val.warning { color: var(--warning); }
.metric-val.muted { color: var(--text-dim); }

.metric-divider {
  width: 1px;
  height: 18px;
  background: var(--border);
}

.metric-progress-wrapper {
  margin-left: auto;
  min-width: 230px;
}

.metric-progress-header {
  display: flex;
  justify-content: space-between;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 0.3rem;
}

.metric-progress-bar {
  height: 7px;
  background: var(--bg-subtle);
  border-radius: var(--radius-pill);
  overflow: hidden;
  border: 1px solid var(--border-light);
}

.metric-progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--green) 0%, var(--green-deep) 100%);
  border-radius: var(--radius-pill);
  transition: width 0.4s ease;
}

/* Metrics Responsive Breakpoints */
@media (max-width: 860px) {
  .metrics-ribbon {
    padding: 0.75rem 1rem;
  }

  .metrics-inner {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.65rem;
  }

  .metric-divider {
    display: none;
  }

  .metric-item {
    background: var(--surface-raised);
    border: 1px solid var(--border-light);
    border-radius: var(--radius);
    padding: 0.65rem 0.85rem;
    flex-direction: column;
    align-items: flex-start;
    gap: 0.25rem;
  }

  .metric-label {
    font-size: 0.7rem;
    line-height: 1.25;
  }

  .metric-val {
    font-size: 1.15rem;
  }

  .metric-progress-wrapper {
    grid-column: 1 / -1;
    width: 100%;
    margin-left: 0;
    min-width: 0;
    margin-top: 0.25rem;
  }
}

@media (max-width: 420px) {
  .metrics-ribbon {
    padding: 0.6rem 0.75rem;
  }

  .metrics-inner {
    gap: 0.5rem;
  }

  .metric-item {
    padding: 0.55rem 0.7rem;
  }

  .metric-label {
    font-size: 0.65rem;
  }

  .metric-val {
    font-size: 1.05rem;
  }
}

/* ==========================================================================
   Main Content Container
   ========================================================================== */

.content-container {
  max-width: 1500px;
  margin: 1.5rem auto 3.5rem auto;
  padding: 0 clamp(0.75rem, 3vw, 1.5rem);
  width: 100%;
}

.tab-panel {
  display: none;
}
.tab-panel.active {
  display: block;
}

/* Common Card */
.card {
  background-color: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: clamp(1rem, 3vw, 1.5rem);
  box-shadow: var(--shadow-sm);
  max-width: 100%;
  overflow: hidden;
}

/* ==========================================================================
   Catalog Hero Banner (XApp Inspired)
   ========================================================================== */

.catalog-hero {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: clamp(1.25rem, 4vw, 2.25rem) clamp(1rem, 4vw, 2.5rem);
  margin-bottom: 1.5rem;
  box-shadow: var(--shadow-sm);
  position: relative;
  overflow: hidden;
}

.catalog-hero::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 320px;
  height: 100%;
  background: radial-gradient(circle at 80% 20%, rgba(120, 182, 60, 0.08) 0%, transparent 70%);
  pointer-events: none;
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--green-deep);
  background: var(--green-soft);
  border: 1px solid var(--green-border);
  padding: 0.3rem 0.8rem;
  border-radius: var(--radius-pill);
  margin-bottom: 0.85rem;
  max-width: 100%;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 0 4px var(--green-glow);
  display: inline-block;
  flex-shrink: 0;
}

.hero-title {
  font-size: clamp(1.35rem, 4.5vw, 1.95rem);
  font-weight: 800;
  color: var(--ink);
  line-height: 1.25;
  margin-bottom: 0.65rem;
  letter-spacing: -0.02em;
}

.hero-description {
  font-size: clamp(0.85rem, 2.5vw, 1rem);
  color: var(--text-secondary);
  max-width: 840px;
  line-height: 1.6;
}

/* ==========================================================================
   Search & Filter Bar
   ========================================================================== */

.search-filter-bar {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 0.9rem 1.25rem;
  box-shadow: var(--shadow-xs);
  display: flex;
  gap: 1rem;
  align-items: center;
  flex-wrap: wrap;
  width: 100%;
}

.search-input-wrapper {
  flex: 1;
  min-width: 280px;
  position: relative;
  display: flex;
  align-items: center;
  max-width: 100%;
}

.search-input-wrapper svg {
  position: absolute;
  left: 1rem;
  color: var(--text-muted);
  pointer-events: none;
  flex-shrink: 0;
  z-index: 2;
}

.search-input-wrapper input,
.search-input-wrapper input[type="text"] {
  width: 100%;
  padding: 0.7rem 2.4rem 0.7rem 2.85rem !important;
  background-color: var(--surface-raised);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-main);
  font-family: inherit;
  font-size: 0.9rem;
  transition: all 0.15s ease;
}

.search-input-wrapper input:focus {
  outline: none;
  background-color: var(--surface);
  border-color: var(--green-deep);
  box-shadow: 0 0 0 3px rgba(70, 125, 33, 0.14);
}

.clear-btn {
  position: absolute;
  right: 0.75rem;
  background: transparent;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  display: flex;
  align-items: center;
  padding: 0.25rem;
  border-radius: var(--radius-xs);
}

.clear-btn:hover {
  color: var(--text-main);
  background: var(--bg-subtle);
}

.filter-controls {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
}

select {
  background-color: var(--surface-raised);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-main);
  font-family: inherit;
  font-size: 0.85rem;
  font-weight: 500;
  padding: 0.7rem 1.1rem;
  cursor: pointer;
  transition: all 0.15s ease;
}

select:focus {
  outline: none;
  background-color: var(--surface);
  border-color: var(--green-deep);
  box-shadow: 0 0 0 3px rgba(70, 125, 33, 0.14);
}

.catalog-status-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin: 1.25rem 0;
  font-size: 0.85rem;
  color: var(--text-muted);
  font-weight: 500;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.catalog-quick-links {
  display: flex;
  gap: 0.6rem;
  align-items: center;
  flex-wrap: wrap;
}

.link-btn {
  color: var(--green-deep);
  font-size: 0.8rem;
  font-family: var(--font-mono);
  font-weight: 600;
}

.link-btn:hover {
  color: var(--green-hover);
}

.link-btn:focus-visible {
  outline: 2px solid var(--green);
  outline-offset: 2px;
  border-radius: var(--radius-xs);
}

.sep {
  color: var(--border);
}

/* Search Bar Responsive */
@media (max-width: 768px) {
  .search-filter-bar {
    flex-direction: column;
    align-items: stretch;
    padding: 0.85rem;
    gap: 0.65rem;
  }

  .search-input-wrapper {
    min-width: 0;
    width: 100%;
    flex: none;
  }

  .filter-controls {
    width: 100%;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.5rem;
  }

  .filter-controls select {
    width: 100%;
    min-height: 44px;
    padding: 0.7rem 2.2rem 0.7rem 0.85rem;
    font-size: 0.85rem;
  }
}

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

  .catalog-status-bar {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.4rem;
  }
}

/* ==========================================================================
   Application Cards Grid
   ========================================================================== */

.app-cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 340px), 1fr));
  gap: 1.25rem;
  width: 100%;
}

.app-card {
  background-color: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.35rem;
  display: flex;
  flex-direction: column;
  gap: 0.95rem;
  box-shadow: var(--shadow-sm);
  transition: transform 0.2s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.2s cubic-bezier(0.16, 1, 0.3, 1), border-color 0.2s ease;
  cursor: pointer;
  position: relative;
  min-width: 0;
  overflow: hidden;
}

.app-card:hover {
  transform: translateY(-3px);
  border-color: var(--card-hover-border);
  box-shadow: var(--shadow-lg);
}

.app-card:focus-visible {
  outline: 2px solid var(--green);
  outline-offset: 3px;
  border-color: var(--card-hover-border);
  box-shadow: var(--shadow-lg), 0 0 0 4px var(--green-glow);
}

.app-card-head {
  display: flex;
  gap: 0.85rem;
  align-items: flex-start;
  min-width: 0;
}

.app-card-icon {
  width: 48px;
  height: 48px;
  aspect-ratio: 1 / 1;
  border-radius: var(--radius);
  background-color: var(--bg);
  object-fit: contain;
  flex-shrink: 0;
  border: 1px solid var(--border-light);
}

.app-card-info {
  flex: 1;
  min-width: 0;
  overflow: hidden;
}

.app-card-title {
  font-size: 1.075rem;
  font-weight: 700;
  color: var(--ink);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  letter-spacing: -0.01em;
}

.app-card-id {
  font-family: var(--font-mono);
  font-size: 0.725rem;
  color: var(--text-dim);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  margin-top: 0.15rem;
}

.app-card-summary {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  min-height: 2.55rem;
  word-break: break-word;
}

.app-card-chips {
  display: flex;
  gap: 0.4rem;
  flex-wrap: wrap;
  align-items: center;
}

.chip {
  font-size: 0.7rem;
  font-weight: 600;
  padding: 0.2rem 0.55rem;
  border-radius: var(--radius-pill);
  background: var(--surface-raised);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  max-width: 100%;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.chip-category {
  color: var(--green-deep);
  border-color: var(--green-border);
  background: var(--green-soft);
}

.chip-license {
  font-family: var(--font-mono);
  color: var(--text-secondary);
  background: var(--bg);
}

.app-card-footer {
  margin-top: auto;
  padding-top: 0.85rem;
  border-top: 1px solid var(--border-light);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.75rem;
  color: var(--text-muted);
  gap: 0.5rem;
}

.card-actions-quick {
  display: flex;
  gap: 0.4rem;
  flex-shrink: 0;
}

/* App Cards Mobile Breakpoint */
@media (max-width: 640px) {
  .app-cards-grid {
    grid-template-columns: 1fr;
    gap: 0.85rem;
  }

  .app-card {
    padding: 1.1rem;
    gap: 0.75rem;
  }

  .card-actions-quick {
    gap: 0.5rem;
  }

  .btn-card-inspect,
  .btn-card-edit,
  .btn-card-copy,
  .card-actions-quick .btn,
  .btn-xs {
    min-height: 44px;
    min-width: 44px;
    padding: 0.55rem 0.85rem;
    font-size: 0.85rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }
}

@media (max-width: 440px) {
  .app-card {
    padding: 0.95rem;
  }

  .app-card-icon {
    width: 48px;
    height: 48px;
    aspect-ratio: 1 / 1;
  }

  .app-card-title {
    font-size: 0.975rem;
  }

  .app-card-id {
    font-size: 0.7rem;
  }

  .app-card-summary {
    font-size: 0.825rem;
    min-height: 2.4rem;
  }

  .app-card-footer {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.6rem;
  }

  .card-actions-quick {
    width: 100%;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.35rem;
  }

  .card-actions-quick .btn {
    width: 100%;
    padding: 0.38rem 0.2rem;
    font-size: 0.72rem;
    justify-content: center;
  }
}

/* ==========================================================================
   Pending Backlog View (Responsive Table to Card Transformation)
   ========================================================================== */

.backlog-intro {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.5rem 1.75rem;
  margin-bottom: 1.5rem;
  box-shadow: var(--shadow-sm);
}

.backlog-intro h2 {
  font-size: 1.35rem;
  font-weight: 800;
  margin-bottom: 0.35rem;
  color: var(--ink);
  letter-spacing: -0.015em;
}

.backlog-intro p {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.backlog-table-wrapper {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  width: 100%;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
  text-align: left;
}

.data-table th {
  background: var(--surface-inset);
  padding: 0.95rem 1.35rem;
  font-size: 0.725rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-secondary);
  font-weight: 700;
  border-bottom: 1px solid var(--border);
}

.data-table td {
  padding: 0.95rem 1.35rem;
  border-bottom: 1px solid var(--border-light);
  vertical-align: middle;
  color: var(--text-main);
}

.data-table tr:last-child td {
  border-bottom: none;
}

.data-table tr:hover td {
  background: var(--surface-raised);
}

.slug-code {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--green-deep);
  background: var(--green-soft);
  padding: 0.2rem 0.5rem;
  border-radius: var(--radius-xs);
  border: 1px solid var(--green-border);
  font-weight: 600;
  display: inline-block;
}

/* Backlog Mobile Responsive Table Cards */
@media (max-width: 720px) {
  .backlog-intro {
    padding: 1.15rem 1rem;
    margin-bottom: 1rem;
  }

  .backlog-intro h2 {
    font-size: 1.2rem;
  }

  .backlog-table-wrapper {
    background: transparent;
    border: none;
    box-shadow: none;
    overflow: visible;
  }

  .data-table,
  .data-table thead,
  .data-table tbody,
  .data-table tr,
  .data-table th,
  .data-table td {
    display: block;
    width: 100%;
  }

  .data-table thead {
    display: none;
  }

  .data-table tr {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 1.1rem;
    margin-bottom: 0.85rem;
    box-shadow: var(--shadow-sm);
  }

  .data-table td {
    padding: 0.4rem 0;
    border: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 0.5rem;
    flex-wrap: wrap;
  }

  .data-table td:first-child {
    font-size: 1.05rem;
    padding-bottom: 0.35rem;
    font-weight: 700;
    display: block;
  }

  .data-table td:last-child {
    padding-top: 0.7rem;
    margin-top: 0.45rem;
    border-top: 1px solid var(--border-light);
    display: block;
  }

  .data-table td:last-child .btn-claim-app {
    width: 100%;
    justify-content: center;
    padding: 0.6rem 1rem;
    font-size: 0.85rem;
  }
}

/* ==========================================================================
   Metadata Authoring Studio Layout
   ========================================================================== */

.studio-header {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.5rem 1.75rem;
  margin-bottom: 1.5rem;
  box-shadow: var(--shadow-sm);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1.25rem;
  flex-wrap: wrap;
}

.studio-title-block h2 {
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--ink);
  letter-spacing: -0.015em;
}

.studio-title-block p {
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.studio-actions-bar {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.studio-loader {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-secondary);
}

.studio-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 1.5rem;
  align-items: flex-start;
  width: 100%;
}

.studio-form-pane {
  display: flex;
  flex-direction: column;
  gap: 1.35rem;
  min-width: 0;
}

.form-section {
  position: relative;
}

.section-title {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1.35rem;
  padding-bottom: 0.65rem;
  border-bottom: 1px solid var(--border-light);
}

.step-num {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: var(--green-soft);
  border: 1px solid var(--green-border);
  color: var(--green-deep);
  font-size: 0.8rem;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.section-title h3 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--ink);
}

.form-group {
  margin-bottom: 1.15rem;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

label {
  display: block;
  font-size: 0.825rem;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 0.4rem;
}

.required {
  color: var(--danger);
}

input[type="text"],
input[type="url"],
textarea {
  width: 100%;
  padding: 0.68rem 0.85rem;
  background-color: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-main);
  font-family: inherit;
  font-size: 0.875rem;
  transition: border-color 0.15s, box-shadow 0.15s;
}

input:focus,
textarea:focus {
  outline: none;
  border-color: var(--green-deep);
  box-shadow: 0 0 0 3px rgba(70, 125, 33, 0.14);
}

.hint {
  display: block;
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 0.3rem;
  word-break: break-word;
}

.field-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 0.3rem;
  flex-wrap: wrap;
  gap: 0.35rem;
}

.validation-msg.error {
  color: var(--danger);
  font-size: 0.75rem;
  font-weight: 600;
}

/* Bullet List Builder */
.bullet-list-builder {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin-bottom: 0.6rem;
}

.bullet-item-row {
  display: flex;
  gap: 0.5rem;
  align-items: center;
}

.bullet-item-row input {
  flex: 1;
}

.btn-icon-del {
  background: var(--surface-raised);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-muted);
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  flex-shrink: 0;
  transition: all 0.15s ease;
}

.btn-icon-del:hover {
  border-color: var(--danger-border);
  color: var(--danger);
  background: var(--danger-bg);
}

/* Tag input */
.tag-input-container {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  padding: 0.45rem 0.65rem;
  background-color: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  min-height: 44px;
  align-items: center;
  transition: border-color 0.15s, box-shadow 0.15s;
}

.tag-input-container:focus-within {
  border-color: var(--green-deep);
  box-shadow: 0 0 0 3px rgba(70, 125, 33, 0.14);
}

.tag-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.2rem 0.55rem;
  border-radius: var(--radius-xs);
  background: var(--green-soft);
  border: 1px solid var(--green-border);
  color: var(--green-deep);
  font-size: 0.775rem;
  font-family: var(--font-mono);
  font-weight: 600;
}

.tag-del {
  cursor: pointer;
  color: var(--green-deep);
  opacity: 0.7;
}
.tag-del:hover {
  opacity: 1;
  color: var(--danger);
}

.tag-input-container input {
  flex: 1;
  min-width: 120px;
  border: none;
  background: transparent;
  padding: 0.2rem 0.4rem;
  box-shadow: none !important;
}

.tag-input-container input:focus {
  outline: none;
  border: none;
}

/* Category Manager Component */
.category-manager-box {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.75rem;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.category-chips-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  min-height: 32px;
  align-items: center;
}

.category-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.25rem 0.65rem;
  border-radius: var(--radius-xs);
  background: var(--bg-main);
  border: 1px solid var(--border);
  color: var(--text-primary);
  font-size: 0.8rem;
  font-weight: 500;
  transition: border-color 0.15s;
}

.category-pill.is-main {
  background: var(--green-soft);
  border-color: var(--green-border);
  color: var(--green-deep);
  font-weight: 600;
}

.category-pill .cat-badge {
  font-size: 0.65rem;
  text-transform: uppercase;
  padding: 0.1rem 0.35rem;
  border-radius: 3px;
  background: rgba(var(--primary-rgb), 0.16);
  color: var(--green-deep);
  font-weight: 700;
  letter-spacing: 0.04em;
}

.category-pill .tag-del {
  cursor: pointer;
  margin-left: 0.2rem;
  font-size: 1.1rem;
  line-height: 1;
  color: var(--text-dim);
  border: none;
  background: transparent;
  padding: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.category-pill .tag-del:hover {
  color: var(--danger);
}

.category-add-bar {
  display: flex;
  gap: 0.5rem;
}
.category-add-bar select {
  flex: 1;
}

.category-quick-suggestions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  align-items: center;
  font-size: 0.75rem;
}
.category-quick-suggestions .quick-label {
  color: var(--text-dim);
  font-weight: 500;
  margin-right: 0.2rem;
}
.btn-cat-suggest {
  appearance: none;
  border: 1px dashed var(--border);
  background: var(--bg-main);
  color: var(--text-secondary);
  border-radius: var(--radius-xs);
  padding: 0.2rem 0.5rem;
  font-size: 0.75rem;
  font-family: var(--font-sans);
  cursor: pointer;
  transition: all 0.15s;
}
.btn-cat-suggest:hover {
  border-color: var(--green-deep);
  color: var(--green-deep);
  background: var(--green-soft);
}

/* Icon tester */
.icon-input-wrapper {
  display: flex;
  gap: 0.75rem;
  align-items: center;
}

.icon-input-wrapper input {
  flex: 1;
  min-width: 0;
}

.icon-tester {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.75rem;
  color: var(--text-muted);
  min-width: 110px;
  flex-shrink: 0;
}

.icon-tester img {
  width: 34px;
  height: 34px;
  border-radius: var(--radius-xs);
  border: 1px solid var(--border);
  object-fit: cover;
  background: var(--bg);
  flex-shrink: 0;
}

/* Screenshots Manager */
#screenshotsContainer {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  margin-bottom: 0.6rem;
}

.screenshot-row {
  display: flex;
  gap: 0.5rem;
  align-items: center;
}

.screenshot-row input[type="url"] {
  flex: 1.5;
  min-width: 0;
}

.screenshot-row input[type="text"] {
  flex: 1;
  min-width: 0;
}

/* Checkbox pill grid */
.checkbox-pill-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.6rem;
}

.check-pill {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.6rem 0.85rem;
  border-radius: var(--radius);
  background: var(--surface-raised);
  border: 1px solid var(--border);
  font-size: 0.825rem;
  font-weight: 500;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.15s ease;
  min-width: 0;
  word-break: break-word;
}

.check-pill:hover {
  border-color: var(--green-deep);
  color: var(--text-main);
  background: var(--green-soft);
}

.check-pill input {
  cursor: pointer;
  accent-color: var(--green-deep);
  flex-shrink: 0;
}

/* Studio Right Column: Diagnostics & Previews */
.studio-preview-pane {
  display: flex;
  flex-direction: column;
  gap: 1.35rem;
  position: sticky;
  top: 5rem;
  min-width: 0;
}

.diagnostic-card {
  border-color: var(--border);
}

.diagnostic-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.95rem;
  padding-bottom: 0.65rem;
  border-bottom: 1px solid var(--border-light);
  flex-wrap: wrap;
  gap: 0.5rem;
}

.diagnostic-header h3 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--ink);
}

.diag-status-pill {
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.25rem 0.65rem;
  border-radius: var(--radius-pill);
}

.diag-status-pill.pass {
  background: var(--green-soft);
  color: var(--green-deep);
  border: 1px solid var(--green-border);
}

.diag-status-pill.fail {
  background: var(--danger-bg);
  color: var(--danger);
  border: 1px solid var(--danger-border);
}

.diag-checklist {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.diag-item {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.825rem;
  color: var(--text-secondary);
  word-break: break-word;
}

.diag-icon {
  width: 18px;
  height: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.diag-icon.pass { color: var(--green-deep); }
.diag-icon.fail { color: var(--danger); }
.diag-icon.warn { color: var(--warning); }

/* Store Preview */
.preview-tabs {
  display: flex;
  gap: 0.4rem;
  margin-bottom: 1rem;
  border-bottom: 1px solid var(--border-light);
  padding-bottom: 0.65rem;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.sub-tab {
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  padding: 0.35rem 0.75rem;
  border-radius: var(--radius-pill);
  white-space: nowrap;
  flex-shrink: 0;
  transition: all 0.15s ease;
}

.sub-tab.active {
  color: var(--green-deep);
  background: var(--green-soft);
  border: 1px solid var(--green-border);
}

.sub-panel { display: none; }
.sub-panel.active { display: block; }

.mock-store-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.35rem;
  overflow: hidden;
}

.mock-header {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
}

.mock-icon {
  width: 58px;
  height: 58px;
  border-radius: var(--radius);
  object-fit: cover;
  background: var(--surface-raised);
  border: 1px solid var(--border);
  flex-shrink: 0;
}

.mock-identity {
  min-width: 0;
  overflow: hidden;
}

.mock-identity h4 {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--ink);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.mock-id {
  font-family: var(--font-mono);
  font-size: 0.725rem;
  color: var(--text-dim);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  display: block;
}

.mock-summary {
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-top: 0.3rem;
  line-height: 1.45;
  word-break: break-word;
}

.mock-meta-row {
  display: flex;
  gap: 0.5rem;
  margin: 0.85rem 0;
  flex-wrap: wrap;
}

.mock-desc {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.55;
  margin-bottom: 0.85rem;
  word-break: break-word;
}

.mock-desc ul {
  padding-left: 1.25rem;
  margin-top: 0.35rem;
}

.mock-gallery {
  display: flex;
  gap: 0.5rem;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  padding-bottom: 0.5rem;
}

.mock-thumb {
  height: 85px;
  border-radius: var(--radius-xs);
  border: 1px solid var(--border);
  object-fit: cover;
  flex-shrink: 0;
}

.mock-footer {
  margin-top: 0.85rem;
  padding-top: 0.75rem;
  border-top: 1px solid var(--border);
}

.sandbox-security-row {
  display: flex;
  gap: 0.4rem;
  align-items: center;
  flex-wrap: wrap;
  font-size: 0.725rem;
}

.sec-label {
  color: var(--text-muted);
  font-weight: 600;
}

.sec-pill {
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  padding: 0.15rem 0.5rem;
  border-radius: var(--radius-pill);
  font-weight: 500;
  white-space: nowrap;
}

/* JSON Code Preview (XApp Dark Contrast Panel) */
.json-code-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.6rem;
  font-size: 0.75rem;
  color: var(--text-muted);
  font-weight: 600;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.json-display {
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: var(--radius);
  padding: 1rem;
  font-family: var(--font-mono);
  font-size: 0.785rem;
  color: var(--code-string);
  max-height: 360px;
  overflow-y: auto;
  overflow-x: auto;
  box-shadow: inset 0 2px 6px rgba(0, 0, 0, 0.3);
  width: 100%;
}

/* Actions Card */
.actions-card h3 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 0.25rem;
}

.action-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.65rem;
  margin-top: 1rem;
  width: 100%;
}

/* Studio Responsive Breakpoints */
@media (max-width: 1180px) {
  .studio-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .studio-preview-pane {
    position: static;
  }
}

@media (max-width: 768px) {
  .studio-header {
    flex-direction: column;
    align-items: stretch;
    padding: 1.15rem 1rem;
    gap: 1rem;
  }

  .studio-actions-bar {
    flex-direction: column;
    align-items: stretch;
    width: 100%;
    gap: 0.6rem;
  }

  .studio-loader {
    flex-direction: column;
    align-items: stretch;
    width: 100%;
  }

  .studio-loader select {
    width: 100%;
  }

  .studio-actions-bar .btn {
    width: 100%;
    justify-content: center;
  }

  .action-grid {
    grid-template-columns: 1fr;
    gap: 0.5rem;
  }

  .action-grid .btn {
    width: 100%;
    padding: 0.65rem 1rem;
  }
}

@media (max-width: 640px) {
  .form-row {
    grid-template-columns: 1fr;
  }

  .screenshot-row {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 0.45rem;
    background: var(--surface-raised);
    border: 1px solid var(--border-light);
    border-radius: var(--radius);
    padding: 0.55rem;
  }

  .screenshot-row input[type="url"] {
    grid-column: 1;
    width: 100%;
  }

  .screenshot-row .btn-icon-del {
    grid-column: 2;
  }

  .screenshot-row input[type="text"] {
    grid-column: 1 / -1;
    width: 100%;
  }
}

@media (max-width: 520px) {
  .checkbox-pill-grid {
    grid-template-columns: 1fr;
  }

  .icon-input-wrapper {
    flex-direction: column;
    align-items: stretch;
    gap: 0.5rem;
  }

  .icon-tester {
    justify-content: flex-start;
  }

  .mock-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.75rem;
  }

  .mock-icon {
    width: 50px;
    height: 50px;
  }
}

/* ==========================================================================
   Schema Validator View
   ========================================================================== */

.validator-container {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 1.5rem;
  align-items: flex-start;
  width: 100%;
}

.validator-editor-card,
.validator-results-card {
  min-width: 0;
}

.validator-toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.75rem;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
  flex-wrap: wrap;
  gap: 0.5rem;
}

.validator-tools {
  display: flex;
  gap: 0.45rem;
}

#validatorInput {
  font-family: var(--font-mono);
  font-size: 0.825rem;
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: var(--radius);
  color: var(--code-string);
  line-height: 1.5;
  padding: 1rem;
  resize: vertical;
  box-shadow: inset 0 2px 6px rgba(0, 0, 0, 0.3);
  width: 100%;
  min-height: 240px;
}

#validatorInput:focus {
  border-color: var(--green);
  box-shadow: 0 0 0 3px rgba(120, 182, 60, 0.2);
}

.validator-actions {
  display: flex;
  gap: 0.75rem;
  margin-top: 1rem;
  flex-wrap: wrap;
}

.val-report {
  margin-top: 1rem;
  font-size: 0.85rem;
}

.val-banner {
  padding: 0.95rem 1.15rem;
  border-radius: var(--radius);
  margin-bottom: 1rem;
  font-size: 0.875rem;
  font-weight: 600;
  word-break: break-word;
}

.val-banner.pass {
  background: var(--green-soft);
  border: 1px solid var(--green-border);
  color: var(--green-deep);
}

.val-banner.fail {
  background: var(--danger-bg);
  border: 1px solid var(--danger-border);
  color: var(--danger);
}

.val-errors-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.val-error-item {
  background: var(--bg);
  border-left: 4px solid var(--danger);
  border-radius: 0 var(--radius-xs) var(--radius-xs) 0;
  padding: 0.65rem 0.95rem;
  font-size: 0.825rem;
  word-break: break-word;
}

.val-error-path {
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--ink);
}

.val-error-msg {
  color: var(--text-secondary);
  margin-top: 0.2rem;
}

/* Validator Responsive Breakpoints */
@media (max-width: 1024px) {
  .validator-container {
    grid-template-columns: 1fr;
    gap: 1.25rem;
  }
}

@media (max-width: 640px) {
  .validator-actions {
    flex-direction: column;
    gap: 0.5rem;
  }

  .validator-actions .btn {
    width: 100%;
    justify-content: center;
  }

  #validatorInput {
    font-size: 0.75rem;
    padding: 0.75rem;
  }
}

/* ==========================================================================
   Application Detail Modal
   ========================================================================== */

.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(23, 25, 29, 0.65);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 200;
  padding: clamp(0.5rem, 2.5vw, 1.5rem);
}

.modal-backdrop.active {
  display: flex;
}

.modal-window {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  max-width: 800px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  position: relative;
  box-shadow: var(--shadow-modal);
  padding: clamp(1.25rem, 3.5vw, 2.25rem);
}

.modal-close-btn {
  position: absolute;
  top: 1.25rem;
  right: 1.25rem;
  background: var(--surface-raised);
  border: 1px solid var(--border);
  border-radius: 50%;
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  cursor: pointer;
  transition: all 0.15s ease;
  z-index: 10;
}

.modal-close-btn:hover {
  color: var(--ink);
  background: var(--bg-subtle);
}

/* Modal Content Internal Elements */
.modal-header-block {
  display: flex;
  gap: 1.25rem;
  align-items: flex-start;
  margin-bottom: 1.5rem;
  padding-right: 2.5rem;
}

.modal-header-icon {
  width: 64px;
  height: 64px;
  aspect-ratio: 1 / 1;
  border-radius: 12px;
  object-fit: contain;
  border: 1px solid var(--border);
  background: var(--surface-raised);
  flex-shrink: 0;
}

.modal-header-info {
  flex: 1;
  min-width: 0;
}

.modal-header-title {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 0.2rem;
  word-break: break-word;
}

.modal-header-id {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--primary);
  margin-bottom: 0.5rem;
  word-break: break-all;
}

.modal-header-summary {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.45;
  word-break: break-word;
}

.modal-chips-row {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-bottom: 1.25rem;
}

.modal-desc-section {
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 1.25rem 0;
  margin-bottom: 1.25rem;
}

.modal-section-heading {
  font-size: 0.9rem;
  margin-bottom: 0.75rem;
  color: var(--text-main);
  font-weight: 700;
}

.modal-gallery-section {
  margin: 1.25rem 0;
}

.modal-gallery-scroll {
  display: flex;
  gap: 0.75rem;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  padding-bottom: 0.5rem;
}

.modal-screenshot-item {
  flex-shrink: 0;
  text-align: center;
  max-width: 260px;
  min-height: 140px;
  aspect-ratio: 16 / 9;
}

.modal-screenshot-img {
  width: 100%;
  height: 140px;
  aspect-ratio: 16 / 9;
  border-radius: 6px;
  border: 1px solid var(--border);
  object-fit: contain;
  display: block;
}

.modal-screenshot-caption {
  font-size: 0.75rem;
  color: var(--text-dim);
  margin-top: 0.25rem;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.modal-sandbox-section {
  background: var(--bg-subtle);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1rem;
  margin-bottom: 1.5rem;
}

.modal-sandbox-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.5rem;
  font-size: 0.8rem;
}

.modal-sandbox-item {
  word-break: break-word;
}

.modal-footer-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.modal-footer-links,
.modal-footer-buttons {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

/* Modal Responsive Breakpoints */
@media (max-width: 680px) {
  .modal-window {
    padding: 1.25rem 1rem;
    border-radius: var(--radius-lg);
    max-height: 94vh;
  }

  .modal-close-btn {
    top: 0.75rem;
    right: 0.75rem;
    width: 44px;
    height: 44px;
    min-width: 44px;
    min-height: 44px;
  }

  .modal-header-block {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.75rem;
    padding-right: 2rem;
    margin-bottom: 1rem;
  }

  .modal-header-icon {
    width: 56px;
    height: 56px;
    aspect-ratio: 1 / 1;
    border-radius: 10px;
    object-fit: contain;
  }

  .modal-header-title {
    font-size: 1.2rem;
  }

  .modal-sandbox-grid {
    grid-template-columns: 1fr 1fr;
    gap: 0.45rem;
  }

  .modal-footer-bar {
    flex-direction: column;
    align-items: stretch;
    gap: 0.75rem;
  }

  .modal-footer-links,
  .modal-footer-buttons {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.45rem;
    width: 100%;
  }

  .modal-footer-links .btn,
  .modal-footer-buttons .btn {
    width: 100%;
    min-height: 44px;
    justify-content: center;
    padding: 0.5rem 0.5rem;
    font-size: 0.8rem;
  }
}

@media (max-width: 440px) {
  .modal-sandbox-grid {
    grid-template-columns: 1fr;
  }

  .modal-footer-links,
  .modal-footer-buttons {
    grid-template-columns: 1fr;
  }
}

/* ==========================================================================
   Buttons
   ========================================================================== */

.btn {
  padding: 0.58rem 1.1rem;
  border-radius: var(--radius);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  border: 1px solid transparent;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-family: inherit;
  transition: all 0.15s ease;
  text-decoration: none;
  white-space: nowrap;
}

.btn:focus-visible {
  outline: none;
  border-color: var(--green);
  box-shadow: 0 0 0 3px var(--green-glow);
}

.btn svg {
  flex-shrink: 0;
}

.btn-sm {
  padding: 0.42rem 0.8rem;
  font-size: 0.8rem;
}

.btn-xs {
  padding: 0.28rem 0.55rem;
  font-size: 0.75rem;
}

.btn-primary {
  background-color: var(--primary);
  color: var(--btn-primary-text);
  border-color: var(--primary);
  box-shadow: 0 2px 4px rgba(70, 125, 33, 0.2);
}
.btn-primary:hover {
  background-color: var(--primary-hover);
  border-color: var(--primary-hover);
  color: var(--btn-primary-text);
  text-decoration: none;
  box-shadow: 0 4px 10px rgba(70, 125, 33, 0.3);
}

.btn-secondary {
  background-color: var(--green-soft);
  border: 1px solid var(--green-border);
  color: var(--green-deep);
}
.btn-secondary:hover {
  background-color: var(--btn-secondary-hover-bg);
  color: var(--green-hover);
  text-decoration: none;
}

.btn-outline {
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text-main);
}
.btn-outline:hover {
  background: var(--bg);
  border-color: var(--border-dark);
  text-decoration: none;
}

.btn-accent {
  background-color: var(--green);
  border-color: var(--green);
  color: var(--btn-primary-text);
}
.btn-accent:hover {
  background-color: var(--green-hover);
  border-color: var(--green-hover);
  color: var(--btn-primary-text);
  text-decoration: none;
}

/* ==========================================================================
   Toast Notifications
   ========================================================================== */

.toast-container {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  z-index: 300;
  max-width: 400px;
}

.toast {
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--ink);
  padding: 0.85rem 1.35rem;
  border-radius: var(--radius);
  font-size: 0.85rem;
  font-weight: 600;
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  gap: 0.65rem;
  animation: slideIn 0.2s ease forwards;
}

.toast.success {
  border-left: 4px solid var(--green-deep);
}

.toast.info {
  border-left: 4px solid var(--green);
}

@keyframes slideIn {
  from {
    transform: translateY(12px);
    opacity: 0;
  }
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

@media (max-width: 640px) {
  .toast-container {
    left: 1rem;
    right: 1rem;
    bottom: 1rem;
    max-width: none;
  }

  .toast {
    padding: 0.75rem 1rem;
    font-size: 0.8rem;
  }
}

/* ==========================================================================
   Dedicated Application Detail Page View
   ========================================================================== */

.app-page-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 1.25rem;
  padding: 0.5rem 0;
}

.breadcrumb-trail {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
  font-size: 0.875rem;
}

.btn-breadcrumb-back {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-main);
  padding: 0.4rem 0.75rem;
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-size: 0.825rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s ease;
}

.btn-breadcrumb-back:hover {
  background: var(--bg-subtle);
  border-color: var(--border-dark);
  color: var(--green-deep);
}

.btn-breadcrumb-back:focus-visible {
  outline: 2px solid var(--green-deep);
  outline-offset: 2px;
}

.breadcrumb-sep {
  color: var(--text-dim);
  font-weight: 400;
}

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

.breadcrumb-item:not(.current) {
  cursor: pointer;
  transition: color 0.15s ease;
}

.breadcrumb-item:not(.current):hover {
  color: var(--green-deep);
  text-decoration: underline;
}

.breadcrumb-item.current {
  color: var(--text-main);
  font-weight: 700;
}

.app-card-title-link {
  text-decoration: none;
  color: inherit;
  display: block;
  min-width: 0;
  outline: none;
}

.app-card-title-link:hover .app-card-title,
.app-card-title-link:focus-visible .app-card-title {
  color: var(--green-deep);
}

.app-page-nav-actions {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.6rem;
}

/* App Page Hero */
.app-page-hero {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 1.75rem;
  margin-bottom: 1.75rem;
  padding: clamp(1.25rem, 3vw, 2rem);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}

.app-hero-main {
  display: flex;
  align-items: flex-start;
  gap: 1.5rem;
  flex: 1 1 500px;
  min-width: 0;
}

.app-hero-icon {
  width: 88px;
  height: 88px;
  aspect-ratio: 1 / 1;
  border-radius: var(--radius-lg);
  object-fit: contain;
  background: var(--surface-raised);
  border: 1px solid var(--border);
  padding: 0.35rem;
  box-shadow: var(--shadow-xs);
  flex-shrink: 0;
}

.app-hero-details {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  min-width: 0;
  flex: 1;
}

.app-hero-badge-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.4rem;
  margin-bottom: 0.2rem;
}

.app-hero-title {
  font-size: clamp(1.5rem, 3vw, 2.15rem);
  font-weight: 800;
  color: var(--text-main);
  letter-spacing: -0.025em;
  margin: 0;
  line-height: 1.2;
}

.app-hero-id {
  font-family: var(--font-mono);
  font-size: 0.825rem;
  color: var(--text-muted);
  word-break: break-all;
}

.app-hero-summary {
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.55;
  margin: 0.35rem 0 0 0;
}

.app-hero-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  align-self: flex-start;
}

/* 2-Column Responsive Layout */
.app-page-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 340px;
  gap: 1.75rem;
  align-items: start;
}

.app-page-main {
  display: flex;
  flex-direction: column;
  gap: 1.75rem;
  min-width: 0;
}

.app-page-sidebar {
  display: flex;
  flex-direction: column;
  gap: 1.75rem;
  min-width: 0;
}

.app-page-card {
  padding: clamp(1.25rem, 2.5vw, 1.75rem);
}

.app-section-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-main);
  margin-top: 0;
  margin-bottom: 1.15rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.app-sidebar-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-main);
  margin-top: 0;
  margin-bottom: 1rem;
}

.app-page-description {
  font-size: 0.95rem;
  line-height: 1.68;
  color: var(--text-secondary);
}

.app-page-description p {
  margin-bottom: 1rem;
}

.app-page-description p:last-child {
  margin-bottom: 0;
}

.app-page-features {
  margin: 1rem 0;
  padding-left: 1.5rem;
}

.app-page-features li {
  margin-bottom: 0.5rem;
  line-height: 1.55;
}

/* ==========================================================================
   Interactive Screenshot Carousel & Lightbox
   ========================================================================== */

.screenshot-carousel {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  width: 100%;
}

.screenshot-stage {
  position: relative;
  width: 100%;
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--surface-inset);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-xs);
  display: flex;
  align-items: center;
  justify-content: center;
}

.screenshot-stage-img-wrapper {
  width: 100%;
  max-height: 480px;
  min-height: 240px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: zoom-in;
  position: relative;
  background: var(--surface-inset);
  padding: 0.5rem;
}

.screenshot-stage-img {
  max-width: 100%;
  max-height: 460px;
  width: auto;
  height: auto;
  object-fit: contain;
  display: block;
  transition: opacity 0.2s ease, transform 0.2s ease;
  border-radius: var(--radius-xs);
}

.screenshot-stage-img-wrapper:hover .screenshot-stage-img {
  transform: scale(1.01);
}

.screenshot-stage-zoom-badge {
  position: absolute;
  top: 0.75rem;
  right: 0.75rem;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.3rem 0.65rem;
  border-radius: var(--radius-pill);
  background: rgba(15, 23, 42, 0.75);
  backdrop-filter: blur(8px);
  color: #ffffff;
  font-size: 0.75rem;
  font-weight: 600;
  pointer-events: none;
  opacity: 0.85;
  transition: opacity 0.15s ease;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

.screenshot-stage-img-wrapper:hover .screenshot-stage-zoom-badge {
  opacity: 1;
}

.carousel-nav-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 44px;
  height: 44px;
  min-width: 44px;
  min-height: 44px;
  border-radius: 50%;
  background: rgba(15, 23, 42, 0.75);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 2;
  transition: all 0.15s ease;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.carousel-nav-btn:hover {
  background: rgba(15, 23, 42, 0.95);
  border-color: var(--green-border);
  color: var(--green-deep);
  transform: translateY(-50%) scale(1.08);
}

.carousel-nav-btn.carousel-prev {
  left: 0.85rem;
}

.carousel-nav-btn.carousel-next {
  right: 0.85rem;
}

.screenshot-caption-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.35rem 0.2rem;
  font-size: 0.825rem;
  color: var(--text-secondary);
}

.screenshot-caption-text {
  font-weight: 500;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.screenshot-stage-counter {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-muted);
  flex-shrink: 0;
}

.screenshot-thumb-strip {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  overflow-x: auto;
  padding: 0.25rem 0.1rem;
  scrollbar-width: thin;
}

.screenshot-thumb {
  width: 92px;
  height: 56px;
  flex-shrink: 0;
  border-radius: var(--radius-sm);
  overflow: hidden;
  border: 2px solid var(--border);
  background: var(--surface-inset);
  padding: 0;
  cursor: pointer;
  transition: all 0.15s ease;
  position: relative;
}

.screenshot-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.screenshot-thumb:hover {
  border-color: var(--green-deep);
  transform: translateY(-2px);
}

.screenshot-thumb.active {
  border-color: var(--green-deep);
  box-shadow: 0 0 0 2px var(--green-soft);
}

/* Lightbox Modal */
.lightbox-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(10, 12, 16, 0.94);
  backdrop-filter: blur(12px);
  z-index: 1000;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 1rem 1.5rem;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.2s ease, visibility 0.2s ease;
}

.lightbox-backdrop.active {
  opacity: 1;
  visibility: visible;
}

.lightbox-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  max-width: 1400px;
  margin: 0 auto;
  padding-bottom: 0.5rem;
  color: #ffffff;
}

.lightbox-counter {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.7);
  background: rgba(255, 255, 255, 0.1);
  padding: 0.2rem 0.65rem;
  border-radius: var(--radius-pill);
}

.lightbox-tools {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.lightbox-action-btn,
.lightbox-close-btn {
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: #ffffff;
  width: 44px;
  height: 44px;
  min-width: 44px;
  min-height: 44px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  text-decoration: none;
  transition: all 0.15s ease;
}

.lightbox-action-btn:hover,
.lightbox-close-btn:hover {
  background: rgba(255, 255, 255, 0.25);
  border-color: #ffffff;
  transform: scale(1.08);
}

.lightbox-viewport {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  flex: 1;
  width: 100%;
  max-width: 1400px;
  margin: 0 auto;
  min-height: 0;
}

.lightbox-img-container {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100%;
  max-height: calc(100vh - 150px);
}

.lightbox-img {
  max-width: 92vw;
  max-height: calc(100vh - 160px);
  width: auto;
  height: auto;
  object-fit: contain;
  border-radius: var(--radius);
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.6);
  user-select: none;
}

.lightbox-nav-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.25);
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 10;
  transition: all 0.15s ease;
}

.lightbox-nav-btn:hover {
  background: rgba(255, 255, 255, 0.3);
  border-color: #ffffff;
  transform: translateY(-50%) scale(1.1);
}

.lightbox-nav-btn.lightbox-prev {
  left: 1rem;
}

.lightbox-nav-btn.lightbox-next {
  right: 1rem;
}

.lightbox-footer {
  width: 100%;
  max-width: 1400px;
  margin: 0 auto;
  text-align: center;
  padding-top: 0.5rem;
}

.lightbox-caption {
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.85);
  margin: 0;
  line-height: 1.4;
}

@media (max-width: 768px) {
  .lightbox-nav-btn {
    width: 44px;
    height: 44px;
    min-width: 44px;
    min-height: 44px;
  }
  .lightbox-nav-btn.lightbox-prev {
    left: 0.25rem;
  }
  .lightbox-nav-btn.lightbox-next {
    right: 0.25rem;
  }
  .screenshot-stage-img-wrapper {
    max-height: 320px;
  }
}

/* Meta Definition List */
.meta-definition-list {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  margin: 0;
}

.meta-row {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--border-light);
}

.meta-row:last-child {
  padding-bottom: 0;
  border-bottom: none;
}

.meta-label {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
}

.meta-val {
  font-size: 0.875rem;
  color: var(--text-main);
  word-break: break-word;
  font-weight: 500;
}

/* Sandbox Security Card */
.sandbox-header-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.sandbox-verified-pill {
  font-size: 0.7rem;
  font-weight: 700;
  padding: 0.15rem 0.5rem;
  border-radius: var(--radius-pill);
  background: var(--green-soft);
  color: var(--green-deep);
  border: 1px solid var(--green-border);
}

.sandbox-perm-list {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.sandbox-perm-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.55rem 0.75rem;
  background: var(--surface-raised);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  font-size: 0.825rem;
}

.sandbox-perm-name {
  font-weight: 600;
  color: var(--text-secondary);
}

.sandbox-perm-value {
  font-family: var(--font-mono);
  font-size: 0.775rem;
  padding: 0.1rem 0.45rem;
  border-radius: var(--radius-xs);
  background: var(--surface-inset);
  color: var(--text-main);
  font-weight: 600;
}

.sandbox-perm-value.active {
  background: var(--green-soft);
  color: var(--green-deep);
  border: 1px solid var(--green-border);
}

.app-json-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.app-json-tools {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

@media (max-width: 960px) {
  .app-page-layout {
    grid-template-columns: 1fr;
  }

  .app-hero-main {
    flex-direction: column;
    align-items: flex-start;
  }

  .app-hero-links {
    width: 100%;
    margin-top: 0.5rem;
  }
}

@media (max-width: 640px) {
  .app-page-nav {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.75rem;
  }

  .app-page-nav-actions {
    width: 100%;
  }

  .app-page-nav-actions button {
    flex: 1;
    justify-content: center;
  }
}

/* ==========================================================================
   Reduced Motion Accessibility Preference
   ========================================================================== */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }

  .app-card:hover,
  .btn:hover,
  .btn:active,
  .modal-window,
  .toast,
  .btn-theme-toggle svg {
    transform: none !important;
    transition: none !important;
  }
}