/* ==========================================================================
   RandomWordGenerator.us — Complete Production Stylesheet (Sections 1 to 18)
   ========================================================================== */

:root {
  --bg-canvas: #ffffff;
  --bg-subtle: #f8fafc;
  --bg-muted: #f1f5f9;
  --bg-elevated: #ffffff;

  --text-primary: #0f172a;
  --text-secondary: #334155;
  --text-muted: #64748b;

  --brand-primary: #0284c7;
  --brand-primary-hover: #0369a1;
  --brand-primary-soft: #e0f2fe;
  --brand-primary-border: #bae6fd;

  --brand-accent: #059669;
  --brand-accent-hover: #047857;
  --brand-accent-soft: #ecfdf5;
  --brand-accent-border: #a7f3d0;

  --danger-main: #dc2626;
  --danger-hover: #b91c1c;
  --danger-soft: #fef2f2;
  --danger-border: #fecaca;

  --warning-main: #d97706;
  --warning-soft: #fef3c7;
  --warning-border: #fde68a;

  --border-light: #e2e8f0;
  --border-input: #cbd5e1;
  --border-hover: #94a3b8;

  --shadow-xs: 0 1px 2px 0 rgba(15, 23, 42, 0.04);
  --shadow-sm: 0 1px 3px 0 rgba(15, 23, 42, 0.07), 0 1px 2px -1px rgba(15, 23, 42, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(15, 23, 42, 0.07), 0 2px 4px -2px rgba(15, 23, 42, 0.05);
  --shadow-focus: 0 0 0 3px rgba(2, 132, 199, 0.22);

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --radius-pill: 9999px;

  --font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
}

/* 1. CSS Reset & Base Foundations */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-canvas);
  color: var(--text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

img,
svg {
  display: block;
  max-width: 100%;
}

button,
input,
select,
textarea {
  font-family: inherit;
  font-size: inherit;
  line-height: inherit;
  color: inherit;
}

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

a:hover {
  color: var(--brand-primary-hover);
}

ul,
ol {
  list-style: none;
}

.hidden {
  display: none !important;
}

/* 2. Accessibility & Layout Containers */
.skip-link {
  position: absolute;
  top: -100px;
  left: 1rem;
  z-index: 999;
  background: var(--brand-primary);
  color: #ffffff;
  padding: 0.65rem 1.15rem;
  border-radius: var(--radius-sm);
  font-weight: 700;
  box-shadow: var(--shadow-md);
}

.skip-link:focus {
  top: 1rem;
  color: #ffffff;
  outline: 2px solid var(--text-primary);
}

.container {
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 1.25rem;
}

/* 3. Top Navigation Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border-light);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 68px;
  gap: 1rem;
}

.brand-logo {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  text-decoration: none;
  color: var(--text-primary);
  font-weight: 800;
  font-size: 1.2rem;
  letter-spacing: -0.025em;
}

.brand-logo:hover {
  color: var(--text-primary);
}

.brand-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 8px;
}

.brand-text {
  color: var(--text-primary);
}

.brand-domain {
  color: var(--brand-primary);
}

.main-nav .nav-list {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.main-nav .nav-list a {
  color: var(--text-secondary);
  font-size: 0.925rem;
  font-weight: 600;
  padding: 0.35rem 0.15rem;
  border-bottom: 2px solid transparent;
  transition: color 0.15s ease, border-color 0.15s ease;
}

.main-nav .nav-list a:hover,
.main-nav .nav-list a:focus-visible {
  color: var(--brand-primary);
  border-bottom-color: var(--brand-primary);
}

/* 4. Compact Hero Section */
.hero-section {
  padding: 2rem 0 1.25rem;
  background: linear-gradient(180deg, var(--bg-subtle) 0%, var(--bg-canvas) 100%);
  border-bottom: 1px solid var(--border-light);
}

.hero-inner {
  text-align: center;
  max-width: 820px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  padding: 0.28rem 0.85rem;
  border-radius: var(--radius-pill);
  background-color: var(--brand-primary-soft);
  border: 1px solid var(--brand-primary-border);
  color: var(--brand-primary-hover);
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 0.65rem;
}

.hero-section h1 {
  font-size: clamp(1.85rem, 3.2vw, 2.55rem);
  font-weight: 800;
  color: var(--text-primary);
  letter-spacing: -0.03em;
  line-height: 1.18;
  margin-bottom: 0.5rem;
}

.hero-subtitle {
  color: var(--text-secondary);
  font-size: clamp(0.96rem, 1.5vw, 1.08rem);
  max-width: 680px;
  margin: 0 auto;
}

/* 5. Primary Generator Workspace Grid */
.workspace-section {
  padding: 1.75rem 0 2.25rem;
}

.workspace-grid {
  display: grid;
  grid-template-columns: 350px minmax(0, 1fr);
  gap: 1.5rem;
  align-items: start;
}

/* 6. Left Filter Controls Card */
.controls-card {
  background-color: var(--bg-subtle);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 1.35rem;
  box-shadow: var(--shadow-sm);
  position: sticky;
  top: 84px;
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 0.85rem;
  margin-bottom: 1.1rem;
  border-bottom: 1px solid var(--border-light);
}

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

.btn-text {
  background: none;
  border: none;
  color: var(--brand-primary);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  padding: 0.2rem 0.4rem;
  border-radius: var(--radius-sm);
  transition: background-color 0.15s ease, color 0.15s ease;
}

.btn-text:hover {
  background-color: var(--brand-primary-soft);
  color: var(--brand-primary-hover);
}

.control-group {
  margin-bottom: 1rem;
}

.control-row-2col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
}

.label-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.35rem;
}

.control-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.35rem;
}

.label-row label {
  margin-bottom: 0;
}

.field-hint {
  font-size: 0.76rem;
  font-weight: 600;
  color: var(--text-muted);
}

input[type="number"],
input[type="text"],
select {
  width: 100%;
  height: 40px;
  padding: 0 0.75rem;
  background-color: var(--bg-elevated);
  border: 1px solid var(--border-input);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 0.925rem;
  font-weight: 500;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

input[type="text"] {
  text-transform: uppercase;
}

input[type="text"]::placeholder,
input[type="number"]::placeholder {
  text-transform: none;
  color: #94a3b8;
  font-weight: 400;
}

input[type="number"]:hover,
input[type="text"]:hover,
select:hover {
  border-color: var(--border-hover);
}

input[type="number"]:focus,
input[type="text"]:focus,
select:focus {
  outline: none;
  border-color: var(--brand-primary);
  box-shadow: var(--shadow-focus);
}

.count-input-wrapper {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.quick-count-pills {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 0.35rem;
}

.pill-btn {
  height: 30px;
  border: 1px solid var(--border-input);
  background-color: var(--bg-elevated);
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s ease;
}

.pill-btn:hover {
  border-color: var(--brand-primary);
  color: var(--brand-primary);
  background-color: var(--brand-primary-soft);
}

.pill-btn.active {
  background-color: var(--brand-primary);
  border-color: var(--brand-primary);
  color: #ffffff;
}

.toggles-box {
  background-color: var(--bg-elevated);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 0.75rem 0.85rem;
  margin: 1.1rem 0;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.toggle-item {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  cursor: pointer;
  user-select: none;
  margin-bottom: 0 !important;
}

.toggle-item input[type="checkbox"] {
  width: 17px;
  height: 17px;
  accent-color: var(--brand-primary);
  cursor: pointer;
  flex-shrink: 0;
}

.toggle-text {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.primary-actions {
  margin-top: 0.5rem;
}

/* 7. Buttons System */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  cursor: pointer;
  transition: background-color 0.15s ease, border-color 0.15s ease, color 0.15s ease, transform 0.08s ease;
  white-space: nowrap;
  user-select: none;
}

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

.btn:focus-visible {
  outline: none;
  box-shadow: var(--shadow-focus);
}

.btn-lg {
  width: 100%;
  height: 46px;
  padding: 0 1.25rem;
  font-size: 0.98rem;
  font-weight: 700;
  border-radius: var(--radius-md);
}

.btn-sm {
  height: 34px;
  padding: 0 0.75rem;
  font-size: 0.82rem;
}

.btn-primary {
  background-color: var(--brand-primary);
  border-color: var(--brand-primary);
  color: #ffffff;
  box-shadow: var(--shadow-xs);
}

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

.btn-accent {
  background-color: var(--brand-accent);
  border-color: var(--brand-accent);
  color: #ffffff;
  box-shadow: var(--shadow-xs);
}

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

.btn-secondary {
  background-color: var(--bg-elevated);
  border-color: var(--border-input);
  color: var(--text-secondary);
}

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

.btn-danger-outline {
  background-color: var(--bg-elevated);
  border-color: var(--danger-border);
  color: var(--danger-main);
}

.btn-danger-outline:hover {
  background-color: var(--danger-soft);
  border-color: var(--danger-main);
  color: var(--danger-hover);
}

/* 8. Right Results Column & Toolbar */
.results-column {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  min-width: 0;
}

.results-card,
.favorites-card {
  background-color: var(--bg-subtle);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 1.35rem;
  box-shadow: var(--shadow-sm);
}

.results-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.85rem;
  padding-bottom: 1rem;
  margin-bottom: 1.15rem;
  border-bottom: 1px solid var(--border-light);
}

.results-meta {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 0.6rem;
}

.count-badge {
  font-size: 1.05rem;
  font-weight: 800;
  color: var(--text-primary);
}

.pool-info {
  font-size: 0.84rem;
  font-weight: 500;
  color: var(--text-muted);
}

.toolbar-buttons {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.45rem;
}

.status-toast {
  background-color: var(--brand-accent-soft);
  border: 1px solid var(--brand-accent-border);
  color: var(--brand-accent-hover);
  padding: 0.65rem 1rem;
  border-radius: var(--radius-sm);
  font-size: 0.88rem;
  font-weight: 600;
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* 9. Dynamic Words Grid */
.words-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(265px, 1fr));
  gap: 0.9rem;
  max-height: 680px;
  overflow-y: auto;
  padding-right: 0.25rem;
}

.words-grid::-webkit-scrollbar {
  width: 7px;
}

.words-grid::-webkit-scrollbar-track {
  background: var(--bg-muted);
  border-radius: 4px;
}

.words-grid::-webkit-scrollbar-thumb {
  background: #cbd5e1;
  border-radius: 4px;
}

.words-grid::-webkit-scrollbar-thumb:hover {
  background: #94a3b8;
}

.empty-state {
  grid-column: 1 / -1;
  text-align: center;
  padding: 3.5rem 1.5rem;
  background-color: var(--bg-elevated);
  border: 1px dashed var(--border-input);
  border-radius: var(--radius-md);
  color: var(--text-muted);
}

/* 10. Saved Favorite Words Panel & Word Cards */
.word-card {
  background-color: var(--bg-elevated);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 1.05rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 0.75rem;
  box-shadow: var(--shadow-xs);
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.word-card:hover {
  border-color: var(--brand-primary-border);
  box-shadow: var(--shadow-sm);
}

.word-card-header,
.word-card-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.5rem;
}

.word-card-body {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
  flex: 1 1 auto;
}

.word-card-footer,
.word-actions,
.word-card-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  padding-top: 0.6rem;
  border-top: 1px solid var(--bg-muted);
  margin-top: auto;
}

.word-title,
.word-term {
  font-size: 1.32rem;
  font-weight: 800;
  color: var(--text-primary);
  letter-spacing: -0.02em;
  line-height: 1.25;
  word-break: break-word;
}

.word-length-pill {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--text-muted);
  background-color: var(--bg-subtle);
  border: 1px solid var(--border-light);
  padding: 0.12rem 0.45rem;
  border-radius: 4px;
}

.word-badges,
.word-meta-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin-top: 0.35rem;
}

.badge,
.meta-tag {
  display: inline-flex;
  align-items: center;
  padding: 0.14rem 0.48rem;
  border-radius: 4px;
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  background-color: var(--brand-primary-soft);
  color: var(--brand-primary-hover);
}

.badge-syl,
.meta-syl {
  background-color: var(--bg-muted);
  color: var(--text-secondary);
}

.badge-diff,
.meta-diff-easy {
  background-color: var(--brand-accent-soft);
  color: var(--brand-accent-hover);
}

.meta-diff-medium {
  background-color: var(--warning-soft);
  color: var(--warning-main);
}

.meta-diff-hard {
  background-color: #f3e8ff;
  color: #6b21a8;
}

.word-meaning,
.word-definition {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

.word-example {
  font-size: 0.84rem;
  color: var(--text-muted);
  font-style: italic;
  border-left: 2px solid var(--brand-primary);
  padding-left: 0.6rem;
  margin-top: 0.25rem;
}

.copy-word-btn,
.fav-word-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.35rem;
  height: 30px;
  padding: 0 0.65rem;
  font-size: 0.78rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-input);
  background-color: var(--bg-elevated);
  color: var(--text-secondary);
  cursor: pointer;
  transition: background-color 0.15s ease, border-color 0.15s ease, color 0.15s ease;
}

.copy-word-btn:hover,
.fav-word-btn:hover {
  background-color: var(--bg-muted);
  border-color: var(--border-hover);
  color: var(--text-primary);
}

.copy-word-btn.copied {
  background-color: var(--brand-accent-soft);
  border-color: var(--brand-accent-border);
  color: var(--brand-accent-hover);
}

.fav-word-btn.is-favorite,
.fav-btn.active,
.btn-fav-active {
  background-color: var(--warning-soft);
  border-color: var(--warning-border);
  color: var(--warning-main);
}

.words-grid.compact-mode {
  grid-template-columns: repeat(auto-fill, minmax(170px, 1fr));
  gap: 0.6rem;
}

.words-grid.compact-mode .word-card {
  padding: 0.7rem 0.85rem;
  gap: 0.45rem;
}

.words-grid.compact-mode .word-title {
  font-size: 1.08rem;
}

.favorites-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.75rem;
  padding-bottom: 0.85rem;
  margin-bottom: 0.95rem;
  border-bottom: 1px solid var(--border-light);
}

.favorites-title-group {
  display: flex;
  align-items: center;
  gap: 0.55rem;
}

.fav-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 24px;
  height: 24px;
  padding: 0 0.45rem;
  border-radius: var(--radius-pill);
  background-color: var(--brand-primary);
  color: #ffffff;
  font-size: 0.78rem;
  font-weight: 700;
}

.favorites-chips-container {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  min-height: 42px;
  align-items: center;
}

.empty-fav-msg {
  font-size: 0.88rem;
  color: var(--text-muted);
}

.fav-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  background-color: var(--bg-elevated);
  border: 1px solid var(--border-input);
  border-radius: var(--radius-pill);
  padding: 0.3rem 0.75rem;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-primary);
  box-shadow: var(--shadow-xs);
}

.fav-chip-text {
  font-weight: 600;
  color: var(--text-primary);
}

.fav-chip-copy {
  background: none;
  border: none;
  color: var(--brand-primary);
  font-size: 0.78rem;
  font-weight: 600;
  cursor: pointer;
  padding: 0 0.2rem;
}

.fav-chip-copy:hover {
  color: var(--brand-primary-hover);
  text-decoration: underline;
}

.fav-chip-remove {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background-color: var(--danger-soft);
  color: var(--danger-main);
  border: none;
  font-size: 0.85rem;
  font-weight: 700;
  line-height: 1;
  cursor: pointer;
}

.fav-chip-remove:hover {
  background-color: var(--danger-main);
  color: #ffffff;
}

/* 11. Quick Preset Internal Filter Bar */
.presets-bar-section {
  padding-bottom: 2.25rem;
}

.presets-bar {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.55rem;
  background-color: var(--bg-subtle);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 0.85rem 1.15rem;
}

.presets-label {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text-secondary);
  margin-right: 0.25rem;
}

.preset-link {
  display: inline-flex;
  align-items: center;
  padding: 0.32rem 0.75rem;
  background-color: var(--bg-elevated);
  border: 1px solid var(--border-input);
  border-radius: var(--radius-pill);
  color: var(--text-secondary);
  font-size: 0.82rem;
  font-weight: 600;
  transition: all 0.15s ease;
}

.preset-link:hover {
  border-color: var(--brand-primary);
  background-color: var(--brand-primary-soft);
  color: var(--brand-primary-hover);
}

/* 12. SEO Content Sections */
.info-section {
  padding: 3.5rem 0;
  border-top: 1px solid var(--border-light);
}

.section-alt {
  background-color: var(--bg-subtle);
}

.section-header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 2.25rem;
}

.section-header h2 {
  font-size: clamp(1.5rem, 2.5vw, 2rem);
  font-weight: 800;
  color: var(--text-primary);
  letter-spacing: -0.025em;
  margin-bottom: 0.45rem;
}

.section-header p {
  color: var(--text-secondary);
  font-size: 1rem;
}

.steps-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.25rem;
}

.step-card {
  background-color: var(--bg-subtle);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  box-shadow: var(--shadow-xs);
}

.step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  background-color: var(--brand-primary-soft);
  color: var(--brand-primary-hover);
  font-family: var(--font-mono);
  font-size: 0.88rem;
  font-weight: 800;
  margin-bottom: 0.85rem;
}

.step-card h3 {
  font-size: 1.08rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.45rem;
}

.step-card p {
  font-size: 0.92rem;
  color: var(--text-secondary);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.25rem;
}

.feature-box {
  background-color: var(--bg-elevated);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 1.4rem;
  box-shadow: var(--shadow-xs);
}

.feature-box h3 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.45rem;
}

.feature-box p {
  font-size: 0.92rem;
  color: var(--text-secondary);
}

.two-col-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2.5rem;
  align-items: start;
}

.content-block h2 {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--text-primary);
  letter-spacing: -0.02em;
  margin-bottom: 1rem;
}

.content-block p {
  color: var(--text-secondary);
  font-size: 0.96rem;
  margin-bottom: 1rem;
}

.check-list {
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
}

.check-list li {
  position: relative;
  padding-left: 1.65rem;
  font-size: 0.95rem;
  color: var(--text-secondary);
}

.check-list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  top: 0.05rem;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background-color: var(--brand-accent-soft);
  color: var(--brand-accent-hover);
  font-size: 0.75rem;
  font-weight: 900;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.faq-list {
  max-width: 840px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.faq-item {
  background-color: var(--bg-elevated);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-xs);
}

.faq-item summary {
  padding: 1.1rem 1.35rem;
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-primary);
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

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

.faq-item summary::after {
  content: "+";
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--brand-primary);
  line-height: 1;
}

.faq-item[open] summary::after {
  content: "−";
}

.faq-answer {
  padding: 0.9rem 1.35rem 1.2rem;
  color: var(--text-secondary);
  font-size: 0.94rem;
  border-top: 1px solid var(--bg-muted);
}

/* 13. Site Footer & Legal Details */
.site-footer {
  background-color: #0f172a;
  color: #cbd5e1;
  padding: 3.5rem 0 2rem;
  margin-top: 1rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 2.5rem;
  padding-bottom: 2.25rem;
  border-bottom: 1px solid #1e293b;
}

.site-footer .brand-text {
  color: #ffffff;
}

.site-footer .brand-domain {
  color: #38bdf8;
}

.footer-desc {
  margin-top: 0.75rem;
  font-size: 0.9rem;
  color: #94a3b8;
  max-width: 420px;
}

.footer-nav-col h3 {
  color: #ffffff;
  font-size: 0.92rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 0.85rem;
}

.footer-nav-col ul {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.footer-nav-col a {
  color: #94a3b8;
  font-size: 0.9rem;
}

.footer-nav-col a:hover {
  color: #ffffff;
}

.footer-legal-panels {
  padding: 1.5rem 0;
  border-bottom: 1px solid #1e293b;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 0.75rem;
}

.legal-detail {
  background-color: #1e293b;
  border: 1px solid #334155;
  border-radius: var(--radius-sm);
  padding: 0.65rem 0.9rem;
}

.legal-detail summary {
  font-size: 0.84rem;
  font-weight: 600;
  color: #e2e8f0;
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.legal-detail summary::-webkit-details-marker {
  display: none;
}

.legal-detail summary::after {
  content: "+";
  color: #38bdf8;
  font-weight: 700;
}

.legal-detail[open] summary::after {
  content: "−";
}

.legal-body {
  margin-top: 0.65rem;
  padding-top: 0.65rem;
  border-top: 1px solid #334155;
  font-size: 0.82rem;
  color: #cbd5e1;
}

.legal-body a {
  color: #38bdf8;
}

.footer-bottom {
  padding-top: 1.5rem;
  text-align: center;
  font-size: 0.84rem;
  color: #64748b;
}

/* 14. Responsive Breakpoints */
@media (max-width: 980px) {
  .workspace-grid {
    grid-template-columns: 1fr;
  }

  .controls-card {
    position: static;
  }

  .two-col-content {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }

  .footer-brand {
    grid-column: 1 / -1;
  }
}

@media (max-width: 640px) {
  .header-inner {
    flex-direction: column;
    padding: 0.75rem 0;
    gap: 0.6rem;
  }

  .main-nav .nav-list {
    gap: 1rem;
    flex-wrap: wrap;
    justify-content: center;
  }

  .results-toolbar,
  .favorites-header {
    flex-direction: column;
    align-items: stretch;
  }

  .toolbar-buttons {
    width: 100%;
  }

  .toolbar-buttons .btn {
    flex: 1 1 auto;
  }

  .words-grid {
    grid-template-columns: 1fr;
    max-height: none;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 1.75rem;
  }
}