/* ==========================================================================
   Karmazillo kPrompter — Visual Design System & Application Stylesheet
   Adheres strictly to Brand/VISUAL_IDENTITY.md and GEMINI.md Brand Mandates.
   Tokens: Minimalist Armor | Golden Clarity | Human Tech
   ========================================================================== */

:root {
  /* Ground-Truth Primary Gray (Official Brand Criteria) */
  --color-primary-gray: #545454;
  --kz-gray-primary: #545454;

  /* Core Palette Tokens (Armor Dark Mode) */
  --color-obsidian-950: #0B0C0E;
  --color-charcoal-900: #181A1F;
  --color-charcoal-850: #1A1D24;
  --color-charcoal-800: #1F2228;
  --color-charcoal-700: #252830;
  --color-steel-700: #545454;
  --color-steel-600: #383838;
  --color-steel-500: #848B98;
  --color-steel-400: #A0A7B5;
  --color-white: #FFFFFF;

  /* Golden Clarity Tokens */
  --color-gold-500: #C59B27;
  --color-gold-400: #D8AD34;
  --color-gold-300: #E5C058;
  --color-gold-700: #8A6814;
  --color-gold-900: #45340A;

  /* Telemetry Status */
  --color-status-success: #22C55E;
  --color-status-warning: #F59E0B;
  --color-status-danger: #EF4444;
  --color-status-info: #38BDF8;

  /* Typography Triad */
  --font-display: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  /* Gradients */
  --gradient-gold: linear-gradient(135deg, #E5C058 0%, #C59B27 50%, #8A6814 100%);
  --gradient-gold-hover: linear-gradient(135deg, #F3D575 0%, #D8AD34 50%, #A27B17 100%);
  --gradient-armor: linear-gradient(145deg, #252830 0%, #181A1F 65%, #0B0C0E 100%);
  --gradient-card: linear-gradient(180deg, rgba(31, 34, 40, 0.6) 0%, rgba(24, 26, 31, 0.8) 100%);

  /* Elevation Shadows */
  --shadow-sm: 0 2px 6px rgba(0, 0, 0, 0.4);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.5);
  --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.65);
  --shadow-gold: 0 4px 20px rgba(197, 155, 39, 0.22);

  /* Layout */
  --max-width: 1440px;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-pill: 9999px;
  --transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Light / High-Contrast Theme */
[data-theme="light"] {
  --color-obsidian-950: #F8F7F4;
  --color-charcoal-900: #FFFFFF;
  --color-charcoal-850: #F3EFE8;
  --color-charcoal-800: #EFECE6;
  --color-charcoal-700: #E5E1D6;
  --color-steel-700: #C8CCD6;
  --color-steel-600: #D8D2C5;
  --color-steel-500: #4B5262;
  --color-steel-400: #6B7280;
  --color-white: #111317;

  --color-gold-500: #9B7813;
  --color-gold-400: #8A6814;
  --color-gold-300: #785A09;
  --color-gold-700: #B58A18;
  --color-gold-900: #EADCB8;

  --gradient-gold: linear-gradient(135deg, #C59B27 0%, #9B7813 50%, #785A09 100%);
  --gradient-armor: linear-gradient(145deg, #FFFFFF 0%, #F5F3EF 65%, #EBE7DF 100%);
  --gradient-card: linear-gradient(180deg, #FFFFFF 0%, #FAF8F5 100%);

  --shadow-sm: 0 2px 6px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.12);
  --shadow-gold: 0 4px 20px rgba(155, 120, 19, 0.15);
}

[data-theme="light"] .app-header {
  background: rgba(248, 247, 244, 0.94);
  border-bottom-color: var(--color-steel-600);
}

[data-theme="light"] .theme-toggle-btn {
  background: #FFFFFF;
  border-color: #D8D2C5;
  color: #111317;
}

[data-theme="light"] .theme-toggle-btn:hover {
  border-color: var(--color-gold-500);
  color: var(--color-gold-300);
}

[data-theme="light"] .compiled-code-display {
  background: #111317 !important;
  color: #F8FAFC !important;
}

.theme-toggle-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  background: var(--color-charcoal-800);
  border: 1px solid var(--color-steel-600);
  color: var(--color-white);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.8125rem;
  padding: 0.45rem 0.95rem;
  border-radius: var(--radius-pill);
  cursor: pointer;
  transition: var(--transition);
  user-select: none;
}

.theme-toggle-btn:hover {
  border-color: var(--color-gold-500);
  color: var(--color-gold-300);
  box-shadow: 0 0 12px rgba(197, 155, 39, 0.2);
}

/* Reset & Box Sizing */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  background-color: var(--color-obsidian-950);
  color: var(--color-white);
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
  position: relative;
}

/* Ambient Radial Glow */
.ambient-glow {
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 1200px;
  height: 520px;
  background: radial-gradient(circle at 50% 0%, rgba(197, 155, 39, 0.14) 0%, rgba(11, 12, 14, 0) 70%);
  pointer-events: none;
  z-index: 0;
}

/* Universal Sticky Navigation Header */
header.app-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(11, 12, 14, 0.92);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--color-steel-600);
  padding: 0.75rem 1.5rem;
}

.nav-container {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

.nav-left {
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

.brand-lockup {
  display: flex;
  align-items: center;
  text-decoration: none;
  transition: opacity var(--transition);
}

.brand-lockup:hover {
  opacity: 0.92;
}

.brand-logo-img {
  height: 34px;
  width: auto;
  object-fit: contain;
  display: block;
}

/* Ecosystem Dropdown Trigger */
.ecosystem-dropdown-wrapper {
  position: relative;
}

.ecosystem-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--color-charcoal-900);
  border: 1px solid var(--color-steel-600);
  color: var(--color-white);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.8125rem;
  padding: 0.4rem 0.85rem;
  border-radius: var(--radius-pill);
  cursor: pointer;
  transition: var(--transition);
  user-select: none;
}

.ecosystem-btn:hover,
.ecosystem-btn[aria-expanded="true"] {
  border-color: var(--color-gold-500);
  background: var(--color-charcoal-800);
  color: var(--color-gold-300);
  box-shadow: 0 2px 12px rgba(197, 155, 39, 0.2);
}

.ecosystem-badge {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 600;
  color: var(--color-gold-300);
  background: rgba(197, 155, 39, 0.15);
  border: 1px solid rgba(197, 155, 39, 0.35);
  padding: 0.1rem 0.4rem;
  border-radius: 4px;
}

.ecosystem-chevron {
  transition: transform 0.25s var(--transition);
}

.ecosystem-btn[aria-expanded="true"] .ecosystem-chevron {
  transform: rotate(180deg);
}

/* Ecosystem Menu Panel */
.ecosystem-menu {
  position: absolute;
  top: calc(100% + 0.6rem);
  left: 0;
  width: min(480px, calc(100vw - 2rem));
  background: #14161C;
  border: 1px solid var(--color-steel-600);
  border-radius: var(--radius-md);
  box-shadow: 0 24px 50px rgba(0, 0, 0, 0.85), 0 0 0 1px rgba(74, 79, 89, 0.3), 0 0 28px rgba(197, 155, 39, 0.15);
  backdrop-filter: blur(20px);
  z-index: 120;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transform: translateY(-8px);
  transition: opacity 0.2s var(--transition), transform 0.2s var(--transition), visibility 0.2s;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.ecosystem-menu.is-open {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateY(0);
}

.ecosystem-menu-header {
  padding: 0.75rem 1rem;
  background: #0E1014;
  border-bottom: 1px solid var(--color-steel-600);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.ecosystem-menu-title {
  font-family: var(--font-display);
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--color-white);
}

.ecosystem-menu-list {
  padding: 0.5rem;
  max-height: 400px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.ecosystem-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.55rem 0.75rem;
  border-radius: var(--radius-sm);
  text-decoration: none;
  color: var(--color-white);
  transition: background var(--transition);
  border: 1px solid transparent;
}

.ecosystem-item:hover {
  background: var(--color-charcoal-800);
  border-color: rgba(197, 155, 39, 0.3);
}

.ecosystem-item.is-current {
  background: rgba(197, 155, 39, 0.1);
  border-color: rgba(197, 155, 39, 0.4);
}

.ecosystem-item-icon {
  width: 28px;
  height: 28px;
  border-radius: 6px;
  background: var(--color-charcoal-700);
  color: var(--color-gold-300);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  flex-shrink: 0;
}

.ecosystem-item-info {
  flex: 1;
  min-width: 0;
}

.ecosystem-item-name {
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--color-white);
  line-height: 1.2;
}

.ecosystem-item-desc {
  font-size: 0.75rem;
  color: var(--color-steel-500);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.ecosystem-item-tag {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--color-gold-300);
  background: rgba(197, 155, 39, 0.12);
  padding: 0.15rem 0.4rem;
  border-radius: 4px;
}

/* Nav Right & Section Anchor Links */
.nav-right {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  list-style: none;
}

.nav-link {
  font-family: var(--font-display);
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--color-steel-400);
  text-decoration: none;
  padding: 0.4rem 0.75rem;
  border-radius: var(--radius-sm);
  transition: var(--transition);
}

.nav-link:hover,
.nav-link.active {
  color: var(--color-white);
  background: var(--color-charcoal-800);
}

.nav-link.highlight {
  color: var(--color-gold-300);
}

.library-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background: var(--color-charcoal-800);
  border: 1px solid var(--color-steel-600);
  color: var(--color-white);
  font-family: var(--font-display);
  font-size: 0.8125rem;
  font-weight: 600;
  padding: 0.4rem 0.85rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition);
}

.library-btn:hover {
  border-color: var(--color-gold-500);
  color: var(--color-gold-300);
}

.library-count-badge {
  background: var(--color-gold-500);
  color: var(--color-obsidian-950);
  font-family: var(--font-mono);
  font-size: 0.65rem;
  font-weight: 700;
  padding: 0.05rem 0.35rem;
  border-radius: 9999px;
}

/* Main Container */
main.main-content {
  flex: 1;
  max-width: var(--max-width);
  width: 100%;
  margin: 0 auto;
  padding: 1.5rem 1.5rem 4rem;
  position: relative;
  z-index: 10;
}

/* Hero Section */
.hero-section {
  text-align: center;
  padding: 2rem 1rem 1.75rem;
  max-width: 920px;
  margin: 0 auto;
}

.hero-pill-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(197, 155, 39, 0.12);
  border: 1px solid rgba(197, 155, 39, 0.35);
  padding: 0.3rem 0.85rem;
  border-radius: var(--radius-pill);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-gold-300);
  margin-bottom: 1rem;
  box-shadow: 0 2px 8px rgba(197, 155, 39, 0.15);
}

.hero-pill-pulse {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--color-status-success);
  box-shadow: 0 0 8px var(--color-status-success);
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 3.8vw, 3rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.03em;
  color: var(--color-white);
  margin-bottom: 0.85rem;
}

.hero-title-highlight {
  background: var(--gradient-gold);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subtitle {
  font-size: 1.05rem;
  color: var(--color-steel-400);
  line-height: 1.55;
  max-width: 760px;
  margin: 0 auto 1.5rem;
}

/* Presets Bar */
.presets-bar-wrapper {
  background: var(--color-charcoal-900);
  border: 1px solid var(--color-steel-600);
  border-radius: var(--radius-md);
  padding: 0.85rem 1.15rem;
  margin-bottom: 2rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.presets-header-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.75rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid rgba(74, 79, 89, 0.4);
}

.presets-label {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-gold-300);
  font-weight: 700;
  white-space: nowrap;
  flex-shrink: 0;
}

.preset-category-tabs {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  flex-wrap: wrap;
}

.category-tab {
  background: transparent;
  border: 1px solid transparent;
  color: var(--color-steel-400);
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.25rem 0.65rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition);
  user-select: none;
}

.category-tab:hover {
  color: var(--color-white);
  background: var(--color-charcoal-800);
  border-color: var(--color-steel-600);
}

.category-tab.active {
  color: var(--color-gold-300);
  background: rgba(197, 155, 39, 0.15);
  border-color: rgba(197, 155, 39, 0.45);
}

.presets-pills-container {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  overflow-x: auto;
  scrollbar-width: thin;
  scrollbar-color: var(--color-steel-600) transparent;
  padding-bottom: 0.25rem;
}

.presets-pills-container::-webkit-scrollbar {
  height: 4px;
}

.presets-pills-container::-webkit-scrollbar-thumb {
  background: var(--color-steel-600);
  border-radius: 4px;
}

.preset-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  background: var(--color-charcoal-800);
  border: 1px solid var(--color-steel-600);
  color: var(--color-white);
  font-family: var(--font-display);
  font-size: 0.8125rem;
  font-weight: 600;
  padding: 0.35rem 0.8rem;
  border-radius: var(--radius-pill);
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
  user-select: none;
}

.preset-chip:hover {
  background: var(--color-charcoal-700);
  border-color: var(--color-gold-500);
  color: var(--color-gold-300);
  transform: translateY(-1px);
}

.preset-chip.active {
  background: rgba(197, 155, 39, 0.2);
  border-color: var(--color-gold-500);
  color: var(--color-gold-300);
  box-shadow: 0 0 12px rgba(197, 155, 39, 0.25);
}

.preset-chip.token-saver {
  border-color: rgba(34, 197, 94, 0.5);
  background: rgba(34, 197, 94, 0.08);
  color: #4ade80;
}

.preset-chip.token-saver:hover {
  border-color: #4ade80;
  background: rgba(34, 197, 94, 0.16);
}

/* ==========================================================================
   Two-Column Core Workspace
   ========================================================================== */
.studio-grid {
  display: grid;
  grid-template-columns: minmax(460px, 1.15fr) minmax(460px, 1fr);
  gap: 1.75rem;
  align-items: start;
}

@media (max-width: 1080px) {
  .studio-grid {
    grid-template-columns: 1fr;
  }
}

/* Cards & Panel Envelopes */
.studio-card {
  background: var(--color-charcoal-900);
  border: 1px solid var(--color-steel-600);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  position: relative;
}

.card-header {
  padding: 1rem 1.25rem;
  background: #121418;
  border-bottom: 1px solid var(--color-steel-600);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.card-title-group {
  display: flex;
  align-items: center;
  gap: 0.65rem;
}

.card-icon {
  width: 28px;
  height: 28px;
  border-radius: 6px;
  background: rgba(197, 155, 39, 0.12);
  color: var(--color-gold-300);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.95rem;
}

.card-title {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--color-white);
  letter-spacing: -0.01em;
}

.card-subtitle {
  font-size: 0.75rem;
  color: var(--color-steel-500);
  font-family: var(--font-mono);
}

.card-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.card-body {
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

/* Form Sections */
.form-section {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.form-label-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.form-label {
  font-family: var(--font-display);
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--color-white);
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.form-hint {
  font-size: 0.75rem;
  color: var(--color-steel-500);
}

/* Model Selector Pills Grid */
.models-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
  gap: 0.5rem;
}

.model-pill {
  background: var(--color-charcoal-800);
  border: 1px solid var(--color-steel-600);
  border-radius: var(--radius-sm);
  padding: 0.5rem 0.65rem;
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  text-align: left;
  user-select: none;
}

.model-pill:hover {
  background: var(--color-charcoal-700);
  border-color: rgba(197, 155, 39, 0.4);
}

.model-pill.active {
  background: rgba(197, 155, 39, 0.12);
  border-color: var(--color-gold-500);
  box-shadow: 0 0 10px rgba(197, 155, 39, 0.2);
}

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

.model-pill-name {
  font-family: var(--font-display);
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--color-white);
}

.model-pill.active .model-pill-name {
  color: var(--color-gold-300);
}

.model-pill-dialect {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--color-steel-500);
}

.model-pill.active .model-pill-dialect {
  color: var(--color-gold-400);
}

/* Framework Selector */
.framework-selector-row {
  display: flex;
  gap: 0.5rem;
  overflow-x: auto;
  padding-bottom: 0.25rem;
}

.framework-chip {
  flex: 1;
  min-width: 120px;
  background: var(--color-charcoal-800);
  border: 1px solid var(--color-steel-600);
  border-radius: var(--radius-sm);
  padding: 0.45rem 0.65rem;
  cursor: pointer;
  transition: var(--transition);
  text-align: center;
  user-select: none;
}

.framework-chip:hover {
  border-color: var(--color-steel-500);
}

.framework-chip.active {
  background: rgba(197, 155, 39, 0.14);
  border-color: var(--color-gold-500);
}

.framework-chip-title {
  font-family: var(--font-display);
  font-size: 0.775rem;
  font-weight: 700;
  color: var(--color-white);
}

.framework-chip.active .framework-chip-title {
  color: var(--color-gold-300);
}

.framework-chip-tag {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--color-steel-500);
}

/* Form Controls (Inputs, Selects, Textareas) */
.form-input,
.form-select,
.form-textarea {
  width: 100%;
  background: #111317;
  border: 1px solid var(--color-steel-600);
  border-radius: var(--radius-sm);
  padding: 0.6rem 0.85rem;
  color: var(--color-white);
  font-family: var(--font-body);
  font-size: 0.875rem;
  line-height: 1.5;
  transition: var(--transition);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--color-gold-500);
  background: #14171E;
  box-shadow: 0 0 0 2px rgba(197, 155, 39, 0.2);
}

.form-select {
  cursor: pointer;
}

.form-select optgroup {
  background-color: #111317;
  color: var(--color-gold-300);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.8125rem;
  padding: 0.4rem 0.25rem;
}

.form-select option {
  background-color: #181A1F;
  color: #FFFFFF;
  padding: 0.5rem;
  font-weight: 400;
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--color-steel-500);
}

.form-textarea {
  resize: vertical;
  min-height: 80px;
}

.form-textarea.large {
  min-height: 110px;
}

/* Guardrail Chips Selection */
.guardrails-list {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
}

.guardrail-checkbox-label {
  display: flex;
  align-items: flex-start;
  gap: 0.65rem;
  background: var(--color-charcoal-800);
  border: 1px solid var(--color-steel-600);
  border-radius: var(--radius-sm);
  padding: 0.5rem 0.75rem;
  cursor: pointer;
  transition: var(--transition);
  user-select: none;
}

.guardrail-checkbox-label:hover {
  background: var(--color-charcoal-700);
  border-color: var(--color-steel-500);
}

.guardrail-checkbox-label.is-checked {
  background: rgba(197, 155, 39, 0.1);
  border-color: rgba(197, 155, 39, 0.45);
}

.guardrail-checkbox-label.token-saver.is-checked {
  background: rgba(34, 197, 94, 0.08);
  border-color: rgba(34, 197, 94, 0.4);
}

.guardrail-checkbox {
  appearance: none;
  width: 16px;
  height: 16px;
  border: 1px solid var(--color-steel-500);
  border-radius: 4px;
  background: #101216;
  margin-top: 0.2rem;
  display: grid;
  place-content: center;
  transition: var(--transition);
  cursor: pointer;
  flex-shrink: 0;
}

.guardrail-checkbox:checked {
  background: var(--color-gold-500);
  border-color: var(--color-gold-500);
}

.guardrail-checkbox:checked::after {
  content: "";
  width: 8px;
  height: 5px;
  border-left: 2px solid var(--color-obsidian-950);
  border-bottom: 2px solid var(--color-obsidian-950);
  transform: rotate(-45deg) translate(1px, -1px);
}

.guardrail-text-group {
  display: flex;
  flex-direction: column;
}

.guardrail-text-title {
  font-family: var(--font-display);
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--color-white);
}

.guardrail-checkbox-label.is-checked .guardrail-text-title {
  color: var(--color-gold-300);
}

.guardrail-text-preview {
  font-size: 0.7125rem;
  color: var(--color-steel-500);
  line-height: 1.35;
}

/* Dynamic Few-Shot Accordion */
.fewshot-toggle-btn {
  background: transparent;
  border: none;
  color: var(--color-gold-300);
  font-family: var(--font-display);
  font-size: 0.8125rem;
  font-weight: 700;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.25rem 0;
  transition: var(--transition);
}

.fewshot-toggle-btn:hover {
  color: var(--color-gold-400);
  text-decoration: underline;
}

.fewshot-container {
  display: none;
  flex-direction: column;
  gap: 0.75rem;
  background: #111317;
  border: 1px solid var(--color-steel-600);
  border-radius: var(--radius-sm);
  padding: 0.75rem;
  margin-top: 0.5rem;
}

.fewshot-container.is-expanded {
  display: flex;
}

/* ==========================================================================
   Right Column: Output Studio
   ========================================================================== */
.output-card {
  position: sticky;
  top: 5rem;
}

/* Quality Score Meter */
.quality-meter-bar {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  background: #101216;
  border-bottom: 1px solid var(--color-steel-600);
  padding: 0.75rem 1.25rem;
}

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

.meter-title {
  font-family: var(--font-mono);
  font-size: 0.7125rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-steel-400);
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.meter-percentage {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--color-gold-300);
}

.meter-track {
  width: 100%;
  height: 6px;
  background: var(--color-charcoal-800);
  border-radius: var(--radius-pill);
  overflow: hidden;
}

.meter-fill {
  height: 100%;
  width: 25%;
  background: var(--gradient-gold);
  border-radius: var(--radius-pill);
  transition: width 0.3s cubic-bezier(0.16, 1, 0.3, 1), background 0.3s ease;
}

/* Telemetry Badge Header */
.output-telemetry-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.5rem 1.25rem;
  background: #14171E;
  border-bottom: 1px solid var(--color-steel-600);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-steel-400);
}

.telemetry-item {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}

.telemetry-val {
  color: var(--color-gold-300);
  font-weight: 700;
}

.output-dialect-badge {
  font-size: 0.6875rem;
  color: var(--color-white);
  background: rgba(197, 155, 39, 0.15);
  border: 1px solid rgba(197, 155, 39, 0.35);
  padding: 0.15rem 0.5rem;
  border-radius: 4px;
}

/* Compiled Prompt Display Box */
.compiled-prompt-wrapper {
  position: relative;
  background: #090A0C;
  border: 1px solid var(--color-steel-600);
  border-radius: var(--radius-sm);
  margin: 1.25rem;
  overflow: hidden;
  box-shadow: inset 0 2px 8px rgba(0, 0, 0, 0.6);
}

.compiled-prompt-code {
  display: block;
  width: 100%;
  min-height: 380px;
  max-height: 520px;
  padding: 1rem;
  overflow-y: auto;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  line-height: 1.55;
  color: #E2E8F0;
  white-space: pre-wrap;
  word-break: break-word;
  tab-size: 2;
}

/* Syntax Highlight Accents */
.prompt-tag {
  color: var(--color-gold-300);
  font-weight: 700;
}

.prompt-directive {
  color: #38BDF8;
  font-weight: 600;
}

.prompt-constraint {
  color: #F87171;
}

/* Action Controls Row */
.action-controls-row {
  padding: 0 1.25rem 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.primary-actions-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 0.6rem;
}

@media (max-width: 600px) {
  .primary-actions-grid {
    grid-template-columns: 1fr;
  }
}

/* Approved Button Hierarchy & Brand Compliance */
/* IMPORTANT Accessibility Rule: Text on Desert Bronze (#C59B27) MUST be Obsidian (#0B0C0E) */
.btn-primary {
  background: var(--gradient-gold);
  color: var(--color-obsidian-950);
  border: none;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 0.875rem;
  padding: 0.65rem 1rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  transition: var(--transition);
  box-shadow: var(--shadow-gold);
  user-select: none;
}

.btn-primary:hover {
  background: var(--gradient-gold-hover);
  transform: translateY(-1px);
  box-shadow: 0 6px 24px rgba(197, 155, 39, 0.35);
}

.btn-secondary {
  background: var(--color-charcoal-800);
  color: var(--color-white);
  border: 1px solid var(--color-steel-600);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.8125rem;
  padding: 0.65rem 0.9rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  transition: var(--transition);
  user-select: none;
}

.btn-secondary:hover {
  background: var(--color-charcoal-700);
  border-color: var(--color-gold-500);
  color: var(--color-gold-300);
}

/* 1-Click Direct AI Launch Section */
.direct-launch-section {
  background: #121418;
  border: 1px solid var(--color-steel-600);
  border-radius: var(--radius-sm);
  padding: 0.75rem 1rem;
}

.direct-launch-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.5rem;
}

.direct-launch-title {
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-steel-400);
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.direct-launch-hint {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  color: var(--color-steel-500);
}

.ai-buttons-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(110px, 1fr));
  gap: 0.45rem;
}

.ai-launch-btn {
  background: var(--color-charcoal-800);
  border: 1px solid var(--color-steel-600);
  border-radius: var(--radius-sm);
  padding: 0.45rem 0.6rem;
  color: var(--color-white);
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 700;
  text-decoration: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.35rem;
  transition: var(--transition);
  user-select: none;
}

.ai-launch-btn:hover {
  border-color: var(--color-gold-500);
  color: var(--color-gold-300);
  background: var(--color-charcoal-700);
  transform: translateY(-1px);
}

.ai-launch-btn.claude-btn:hover { border-color: #D97706; color: #FBBF24; }
.ai-launch-btn.chatgpt-btn:hover { border-color: #10A37F; color: #34D399; }
.ai-launch-btn.gemini-btn:hover { border-color: #3B82F6; color: #60A5FA; }
.ai-launch-btn.perplexity-btn:hover { border-color: #22D3EE; color: #38BDF8; }
.ai-launch-btn.deepseek-btn:hover { border-color: #818CF8; color: #A5B4FC; }

/* ==========================================================================
   Section: Antigravity Token Saver & Usage Optimization Guide
   ========================================================================== */
.guide-section {
  margin-top: 4rem;
  background: var(--color-charcoal-900);
  border: 1px solid var(--color-steel-600);
  border-radius: var(--radius-lg);
  padding: 2.25rem 2rem;
  box-shadow: var(--shadow-lg);
  position: relative;
  overflow: hidden;
}

.guide-section::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient-gold);
}

.section-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background: rgba(197, 155, 39, 0.14);
  border: 1px solid rgba(197, 155, 39, 0.35);
  padding: 0.25rem 0.65rem;
  border-radius: var(--radius-pill);
  font-family: var(--font-mono);
  font-size: 0.7125rem;
  font-weight: 700;
  color: var(--color-gold-300);
  margin-bottom: 0.75rem;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 2.5vw, 2.1rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--color-white);
  margin-bottom: 0.5rem;
}

.section-subtitle {
  font-size: 0.95rem;
  color: var(--color-steel-400);
  max-width: 800px;
  line-height: 1.5;
  margin-bottom: 2rem;
}

/* Rules Grid */
.rules-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(360px, 1fr));
  gap: 1.25rem;
  margin-bottom: 2rem;
}

.rule-card {
  background: var(--color-charcoal-800);
  border: 1px solid var(--color-steel-600);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  transition: var(--transition);
}

.rule-card:hover {
  border-color: rgba(197, 155, 39, 0.45);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
}

.rule-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.75rem;
}

.rule-number-group {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.rule-number {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  font-weight: 800;
  background: var(--color-gold-500);
  color: var(--color-obsidian-950);
  width: 24px;
  height: 24px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.rule-title {
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--color-white);
  line-height: 1.3;
}

.rule-badge {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  font-weight: 700;
  background: rgba(34, 197, 94, 0.12);
  border: 1px solid rgba(34, 197, 94, 0.35);
  color: #4ade80;
  padding: 0.2rem 0.5rem;
  border-radius: var(--radius-pill);
  white-space: nowrap;
}

.rule-desc {
  font-size: 0.8125rem;
  color: var(--color-steel-400);
  line-height: 1.45;
}

.comparison-box {
  background: #111317;
  border: 1px solid var(--color-steel-600);
  border-radius: var(--radius-sm);
  padding: 0.65rem;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
}

.comparison-bad {
  color: #F87171;
  display: flex;
  gap: 0.4rem;
}

.comparison-good {
  color: #4ADE80;
  display: flex;
  gap: 0.4rem;
}

.rule-metric-footer {
  font-family: var(--font-mono);
  font-size: 0.7125rem;
  color: var(--color-gold-300);
  border-top: 1px solid rgba(74, 79, 89, 0.4);
  padding-top: 0.5rem;
  margin-top: auto;
}

/* Quick Inject CTA Banner */
.quick-inject-banner {
  background: linear-gradient(135deg, rgba(197, 155, 39, 0.15) 0%, rgba(24, 26, 31, 0.9) 100%);
  border: 1px solid rgba(197, 155, 39, 0.35);
  border-radius: var(--radius-md);
  padding: 1.25rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

@media (max-width: 768px) {
  .quick-inject-banner {
    flex-direction: column;
    align-items: flex-start;
  }
}

.quick-inject-info h4 {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: 0.25rem;
}

.quick-inject-info p {
  font-size: 0.85rem;
  color: var(--color-steel-400);
}

/* ==========================================================================
   Section: Prompt Academy & Video Masterclasses
   ========================================================================== */
.academy-section {
  margin-top: 4rem;
  background: var(--color-charcoal-900);
  border: 1px solid var(--color-steel-600);
  border-radius: var(--radius-lg);
  padding: 2.25rem 2rem;
  box-shadow: var(--shadow-lg);
}

.academy-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  margin-bottom: 2.5rem;
}

@media (max-width: 900px) {
  .academy-grid {
    grid-template-columns: 1fr;
  }
}

.academy-subcolumn-title {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.resource-cards-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.resource-card {
  background: var(--color-charcoal-800);
  border: 1px solid var(--color-steel-600);
  border-radius: var(--radius-md);
  padding: 1.15rem;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  text-decoration: none;
  color: var(--color-white);
  transition: var(--transition);
}

.resource-card:hover {
  border-color: var(--color-gold-500);
  background: var(--color-charcoal-700);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.4);
}

.resource-card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
}

.resource-card-provider {
  font-family: var(--font-mono);
  font-size: 0.7125rem;
  color: var(--color-gold-300);
  font-weight: 600;
}

.resource-badge {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  background: rgba(197, 155, 39, 0.12);
  border: 1px solid rgba(197, 155, 39, 0.3);
  color: var(--color-gold-300);
  padding: 0.15rem 0.45rem;
  border-radius: 4px;
}

.resource-card-title {
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--color-white);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.resource-card:hover .resource-card-title {
  color: var(--color-gold-300);
}

.resource-card-desc {
  font-size: 0.8125rem;
  color: var(--color-steel-400);
  line-height: 1.45;
}

/* Golden Rules Accordion List */
.cheat-sheet-section {
  border-top: 1px solid var(--color-steel-600);
  padding-top: 2rem;
}

.cheat-sheet-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

@media (max-width: 768px) {
  .cheat-sheet-grid {
    grid-template-columns: 1fr;
  }
}

.cheat-sheet-item {
  background: var(--color-charcoal-800);
  border: 1px solid var(--color-steel-600);
  border-radius: var(--radius-sm);
  padding: 0.85rem 1rem;
}

.cheat-sheet-title {
  font-family: var(--font-display);
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--color-gold-300);
  margin-bottom: 0.3rem;
}

.cheat-sheet-desc {
  font-size: 0.775rem;
  color: var(--color-steel-400);
  line-height: 1.45;
}

/* ==========================================================================
   Toast Notification System
   ========================================================================== */
.toast-container {
  position: fixed;
  bottom: 1.75rem;
  right: 1.75rem;
  z-index: 999;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  pointer-events: none;
}

.toast {
  pointer-events: auto;
  background: #15181F;
  border: 1px solid var(--color-gold-500);
  border-radius: var(--radius-sm);
  padding: 0.75rem 1.15rem;
  color: var(--color-white);
  font-family: var(--font-display);
  font-size: 0.8125rem;
  font-weight: 600;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.8), 0 0 16px rgba(197, 155, 39, 0.25);
  display: flex;
  align-items: center;
  gap: 0.6rem;
  animation: toastIn 0.25s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.toast.toast-success {
  border-color: var(--color-status-success);
}

.toast-icon {
  color: var(--color-status-success);
  font-size: 1rem;
}

@keyframes toastIn {
  from {
    opacity: 0;
    transform: translateY(12px) scale(0.95);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

/* ==========================================================================
   Saved Prompts Modal / Drawer
   ========================================================================== */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(8px);
  z-index: 200;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
}

.modal-overlay.is-active {
  display: flex;
}

.modal-card {
  background: #14171E;
  border: 1px solid var(--color-steel-600);
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: 680px;
  max-height: 85vh;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  animation: modalScale 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes modalScale {
  from {
    opacity: 0;
    transform: scale(0.96);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

.modal-header {
  padding: 1.15rem 1.5rem;
  background: #101216;
  border-bottom: 1px solid var(--color-steel-600);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-title {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--color-white);
}

.modal-close-btn {
  background: transparent;
  border: none;
  color: var(--color-steel-500);
  font-size: 1.25rem;
  cursor: pointer;
  transition: var(--transition);
}

.modal-close-btn:hover {
  color: var(--color-white);
}

.modal-body {
  padding: 1.5rem;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.saved-prompts-list {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.saved-prompt-item {
  background: var(--color-charcoal-800);
  border: 1px solid var(--color-steel-600);
  border-radius: var(--radius-sm);
  padding: 0.85rem 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.saved-prompt-name {
  font-family: var(--font-display);
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--color-white);
}

.saved-prompt-meta {
  font-family: var(--font-mono);
  font-size: 0.7125rem;
  color: var(--color-steel-500);
}

.saved-prompt-actions {
  display: flex;
  gap: 0.4rem;
}

/* ==========================================================================
   Accessibility & Keyboard Navigation (WCAG 2.1 AAA Compliance)
   ========================================================================== */
:focus-visible {
  outline: 2px solid var(--color-gold-300);
  outline-offset: 2px;
}

button:focus-visible,
a:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible,
.model-pill:focus-visible,
.framework-chip:focus-visible,
.preset-chip:focus-visible,
.guardrail-checkbox-label:focus-visible,
.compiled-prompt-code:focus-visible {
  outline: 2px solid var(--color-gold-300) !important;
  outline-offset: 2px !important;
  box-shadow: 0 0 14px rgba(197, 155, 39, 0.4) !important;
}

/* ==========================================================================
   Footer
   ========================================================================== */
footer.app-footer {
  margin-top: auto;
  background: #090A0C;
  border-top: 1px solid var(--color-steel-600);
  padding: 2.5rem 1.5rem;
  color: var(--color-steel-500);
  font-size: 0.8125rem;
}

.footer-container {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1.5rem;
}

.footer-left {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.footer-brand {
  font-family: var(--font-display);
  font-weight: 800;
  color: var(--color-white);
  font-size: 0.95rem;
}

.footer-right {
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

.footer-link {
  color: var(--color-steel-400);
  text-decoration: none;
  transition: var(--transition);
}

.footer-link:hover {
  color: var(--color-gold-300);
}