/* ==========================================================================
   profb77.com Design System & UI Component Library
   Specialized for iGaming & Consumer Advocacy under gambling-website-ui-ux-designer
   ========================================================================== */

:root {
  /* --- Color Tokens: Surfaces & Backgrounds --- */
  --bg-base: #0a0e17;
  --bg-surface: #111827;
  --bg-elevated: #1e293b;
  --bg-card: #131d2e;
  --bg-card-hover: #1b283d;
  --bg-glass: rgba(17, 24, 39, 0.85);

  /* --- Color Tokens: Brand & Accents --- */
  --accent-cyan: #0ea5e9;
  --accent-cyan-hover: #38bdf8;
  --accent-glow: rgba(14, 165, 233, 0.2);
  --accent-gold: #f59e0b;
  --accent-gold-glow: rgba(245, 158, 11, 0.2);
  --accent-emerald: #10b981;
  --accent-crimson: #ef4444;

  /* --- Color Tokens: Typography & Text --- */
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --text-inverse: #0f172a;

  /* --- Borders & Outlines --- */
  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-medium: rgba(255, 255, 255, 0.15);
  --border-accent: rgba(14, 165, 233, 0.4);
  --border-gold: rgba(245, 158, 11, 0.35);

  /* --- Typography Scale --- */
  --font-main: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;

  /* --- Spacing System --- */
  --sp-1: 0.25rem;  /* 4px */
  --sp-2: 0.5rem;   /* 8px */
  --sp-3: 0.75rem;  /* 12px */
  --sp-4: 1rem;     /* 16px */
  --sp-5: 1.25rem;  /* 20px */
  --sp-6: 1.5rem;   /* 24px */
  --sp-8: 2rem;     /* 32px */
  --sp-10: 2.5rem;  /* 40px */
  --sp-12: 3rem;    /* 48px */
  --sp-16: 4rem;    /* 64px */

  /* --- Radius Scale --- */
  --r-sm: 6px;
  --r-md: 10px;
  --r-lg: 16px;
  --r-xl: 24px;
  --r-pill: 9999px;

  /* --- Shadows & Elevation --- */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.25);
  --shadow-md: 0 8px 24px -6px rgba(0, 0, 0, 0.45);
  --shadow-lg: 0 20px 40px -15px rgba(0, 0, 0, 0.6);
  --shadow-glow: 0 0 25px -5px var(--accent-glow);

  /* --- Transitions --- */
  --transition-fast: 0.18s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-base: 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

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

body {
  background-color: var(--bg-base);
  color: var(--text-primary);
  font-family: var(--font-main);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

main {
  flex: 1;
  width: 100%;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: var(--accent-cyan);
  text-decoration: none;
  transition: color var(--transition-fast);
}

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

/* --- Layout Containers --- */
.container {
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 var(--sp-6);
}

.container-narrow {
  width: 100%;
  max-width: 920px;
  margin: 0 auto;
  padding: 0 var(--sp-6);
}

/* --- Navigation & Header --- */
.site-header {
  background: var(--bg-glass);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-subtle);
  position: sticky;
  top: 0;
  z-index: 1000;
  transition: background-color var(--transition-base);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.brand-wrapper {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  text-decoration: none;
}

.brand-logo-img {
  width: 44px;
  height: 44px;
  border-radius: var(--r-sm);
  border: 1px solid var(--border-gold);
  background: #000;
  object-fit: cover;
}

.brand-name {
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  background: linear-gradient(135deg, #ffffff 40%, var(--accent-gold) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.nav-desktop {
  display: flex;
  align-items: center;
  gap: var(--sp-6);
  list-style: none;
}

.nav-desktop a {
  color: var(--text-secondary);
  font-size: 0.95rem;
  font-weight: 500;
  padding: var(--sp-2) 0;
  position: relative;
}

.nav-desktop a:hover,
.nav-desktop a.active {
  color: var(--text-primary);
}

.nav-desktop a.active::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--accent-cyan);
  border-radius: var(--r-pill);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
}

.mobile-menu-btn {
  display: none;
  background: transparent;
  border: 1px solid var(--border-medium);
  border-radius: var(--r-sm);
  color: var(--text-primary);
  width: 42px;
  height: 42px;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}

/* Mobile Drawer */
.mobile-drawer {
  position: fixed;
  top: 72px;
  right: 0;
  bottom: 0;
  width: 280px;
  background: var(--bg-surface);
  border-left: 1px solid var(--border-subtle);
  padding: var(--sp-6);
  transform: translateX(100%);
  transition: transform var(--transition-base);
  z-index: 999;
  display: flex;
  flex-direction: column;
  gap: var(--sp-4);
}

.mobile-drawer.is-open {
  transform: translateX(0);
}

.mobile-drawer a {
  color: var(--text-secondary);
  font-size: 1.05rem;
  font-weight: 600;
  padding: var(--sp-3) 0;
  border-bottom: 1px solid var(--border-subtle);
}

.mobile-drawer a:hover,
.mobile-drawer a.active {
  color: var(--accent-cyan);
}

/* --- UI Component: Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--sp-2);
  padding: var(--sp-3) var(--sp-6);
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: var(--r-md);
  cursor: pointer;
  transition: all var(--transition-fast);
  border: none;
  text-decoration: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent-cyan) 0%, #0284c7 100%);
  color: #fff;
  box-shadow: 0 4px 14px rgba(14, 165, 233, 0.35);
}

.btn-primary:hover {
  background: linear-gradient(135deg, var(--accent-cyan-hover) 0%, #0369a1 100%);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(14, 165, 233, 0.5);
}

.btn-secondary {
  background: var(--bg-elevated);
  color: var(--text-primary);
  border: 1px solid var(--border-medium);
}

.btn-secondary:hover {
  background: var(--bg-card-hover);
  border-color: var(--accent-cyan);
  color: #fff;
}

.btn-gold {
  background: linear-gradient(135deg, var(--accent-gold) 0%, #d97706 100%);
  color: #111;
  font-weight: 700;
}

.btn-gold:hover {
  background: linear-gradient(135deg, #fbbf24 0%, #b45309 100%);
  transform: translateY(-2px);
  color: #111;
}

/* --- UI Component: Pills & Badges --- */
.badge-pill {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  padding: var(--sp-1) var(--sp-3);
  font-size: 0.8rem;
  font-weight: 700;
  border-radius: var(--r-pill);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.badge-cyan {
  background: rgba(14, 165, 233, 0.12);
  border: 1px solid rgba(14, 165, 233, 0.3);
  color: var(--accent-cyan-hover);
}

.badge-gold {
  background: rgba(245, 158, 11, 0.12);
  border: 1px solid rgba(245, 158, 11, 0.3);
  color: var(--accent-gold);
}

.badge-emerald {
  background: rgba(16, 185, 129, 0.12);
  border: 1px solid rgba(16, 185, 129, 0.3);
  color: var(--accent-emerald);
}

/* --- UI Component: Breadcrumbs --- */
.breadcrumb-trail {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--sp-2);
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: var(--sp-4);
}

.breadcrumb-trail a {
  color: var(--text-secondary);
}

.breadcrumb-trail a:hover {
  color: var(--accent-cyan);
}

.breadcrumb-separator {
  color: var(--text-muted);
}

/* --- UI Component: Hero Banner & Image Elements --- */
.page-hero {
  padding: var(--sp-10) 0 var(--sp-8);
  border-bottom: 1px solid var(--border-subtle);
  background: radial-gradient(circle at 50% 0%, rgba(14, 165, 233, 0.08) 0%, transparent 60%);
}

.hero-featured-image-box {
  width: 100%;
  max-width: 1160px;
  margin: var(--sp-8) auto 0;
  border-radius: var(--r-lg);
  overflow: hidden;
  border: 1px solid var(--border-medium);
  box-shadow: var(--shadow-lg);
  background: #000;
}

.hero-featured-image-box img {
  width: 100%;
  height: auto;
  aspect-ratio: 1200 / 630;
  object-fit: cover;
}

/* --- UI Component: 3x2 Grid Box & Placecards --- */
.grid-3x2-section {
  padding: var(--sp-12) 0;
}

.section-header-row {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: var(--sp-8);
  flex-wrap: wrap;
  gap: var(--sp-4);
}

.section-headline {
  font-size: 2rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  margin-bottom: var(--sp-2);
}

.section-subtext {
  color: var(--text-secondary);
  font-size: 1.05rem;
  max-width: 680px;
}

/* Filter Tabs */
.filter-tabs-bar {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  overflow-x: auto;
  padding-bottom: var(--sp-2);
  margin-bottom: var(--sp-6);
}

.tab-btn {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  padding: var(--sp-2) var(--sp-4);
  border-radius: var(--r-pill);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
  transition: all var(--transition-fast);
}

.tab-btn:hover {
  background: var(--bg-elevated);
  color: var(--text-primary);
}

.tab-btn.active {
  background: var(--accent-cyan);
  border-color: var(--accent-cyan);
  color: #fff;
}

/* 3x2 Grid Container */
.grid-3x2 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--sp-6);
  margin-bottom: var(--sp-8);
}

/* Placecard Component */
.placecard {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--r-lg);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-base), border-color var(--transition-base), box-shadow var(--transition-base);
}

.placecard:hover {
  transform: translateY(-5px);
  border-color: var(--border-accent);
  box-shadow: var(--shadow-hover);
  background: var(--bg-card-hover);
}

.placecard-media {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  background: #020617;
  overflow: hidden;
}

.placecard-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.placecard:hover .placecard-media img {
  transform: scale(1.04);
}

.placecard-badge-overlay {
  position: absolute;
  top: var(--sp-3);
  left: var(--sp-3);
  z-index: 2;
}

.placecard-content {
  padding: var(--sp-5);
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.placecard-meta {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: var(--sp-3);
}

.placecard-title {
  font-size: 1.15rem;
  font-weight: 700;
  line-height: 1.35;
  color: var(--text-primary);
  margin-bottom: var(--sp-3);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.placecard-title a {
  color: inherit;
}

.placecard-title a:hover {
  color: var(--accent-cyan-hover);
}

.placecard-excerpt {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.5;
  margin-bottom: var(--sp-5);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  flex-grow: 1;
}

.placecard-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid var(--border-subtle);
  padding-top: var(--sp-4);
  margin-top: auto;
}

.placecard-author {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
}

.author-avatar-sm {
  width: 24px;
  height: 24px;
  border-radius: var(--r-pill);
  background: var(--bg-elevated);
  border: 1px solid var(--border-medium);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--accent-cyan);
}

.author-name-sm {
  font-size: 0.8rem;
  color: var(--text-secondary);
}

.placecard-cta {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--accent-cyan);
  display: flex;
  align-items: center;
  gap: var(--sp-1);
}

/* --- UI Component: Pagination Bar --- */
.pagination-container {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--sp-2);
  margin-top: var(--sp-8);
}

.page-btn {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  min-width: 40px;
  height: 40px;
  padding: 0 var(--sp-3);
  border-radius: var(--r-md);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}

.page-btn:hover:not(:disabled) {
  background: var(--bg-elevated);
  border-color: var(--accent-cyan);
  color: var(--text-primary);
}

.page-btn.active {
  background: var(--accent-cyan);
  border-color: var(--accent-cyan);
  color: #fff;
  font-weight: 700;
}

.page-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

/* --- UI Component: Contextual Media & Architecture Box --- */
.context-media-box {
  background: var(--bg-card);
  border: 1px solid var(--border-medium);
  border-radius: var(--r-xl);
  padding: var(--sp-8);
  margin: var(--sp-12) 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--sp-8);
  align-items: center;
  position: relative;
  overflow: hidden;
}

.context-media-box::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(14, 165, 233, 0.08) 0%, transparent 70%);
  pointer-events: none;
}

.context-img-wrapper {
  border-radius: var(--r-lg);
  overflow: hidden;
  border: 1px solid var(--border-accent);
  box-shadow: var(--shadow-md);
}

.context-img-wrapper img {
  width: 100%;
  height: auto;
  aspect-ratio: 800 / 500;
  object-fit: cover;
}

/* --- UI Component: E-E-A-T Author & Reviewer Card --- */
.eeat-author-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-medium);
  border-left: 4px solid var(--accent-cyan);
  border-radius: var(--r-lg);
  padding: var(--sp-6);
  margin: var(--sp-8) 0;
  display: flex;
  gap: var(--sp-5);
  align-items: flex-start;
}

.eeat-avatar {
  width: 64px;
  height: 64px;
  border-radius: var(--r-pill);
  border: 2px solid var(--accent-cyan);
  object-fit: cover;
  flex-shrink: 0;
}

.eeat-meta-wrap h4 {
  font-size: 1.15rem;
  color: var(--text-primary);
  margin-bottom: var(--sp-1);
}

.eeat-role-badge {
  font-size: 0.8rem;
  color: var(--accent-gold);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: var(--sp-2);
}

.eeat-desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.5;
  margin-bottom: var(--sp-3);
}

.eeat-verifier-tag {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  font-size: 0.8rem;
  color: var(--accent-emerald);
  font-weight: 600;
}

/* --- UI Component: Table of Contents (Editorial Sticky) --- */
.post-layout-grid {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: var(--sp-10);
  margin-top: var(--sp-8);
}

.toc-sidebar {
  position: sticky;
  top: 96px;
  height: fit-content;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--r-lg);
  padding: var(--sp-5);
}

.toc-title {
  font-size: 0.95rem;
  font-weight: 800;
  text-transform: uppercase;
  color: var(--text-muted);
  letter-spacing: 1px;
  margin-bottom: var(--sp-4);
}

.toc-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--sp-2);
}

.toc-list a {
  color: var(--text-secondary);
  font-size: 0.88rem;
  display: block;
  padding: var(--sp-1) 0;
  line-height: 1.4;
  border-left: 2px solid transparent;
  padding-left: var(--sp-3);
  transition: all var(--transition-fast);
}

.toc-list a:hover {
  color: var(--accent-cyan);
  border-left-color: var(--accent-cyan);
}

/* --- UI Component: Content Callout & Alert Bundles --- */
.callout-box {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--r-lg);
  padding: var(--sp-6);
  margin: var(--sp-6) 0;
}

.callout-key-takeaways {
  border-left: 4px solid var(--accent-gold);
  background: rgba(245, 158, 11, 0.04);
}

.callout-key-takeaways h3 {
  color: var(--accent-gold);
  font-size: 1.15rem;
  margin-bottom: var(--sp-3);
}

.callout-key-takeaways ul {
  padding-left: var(--sp-5);
  color: var(--text-secondary);
  font-size: 0.95rem;
}

.callout-key-takeaways li {
  margin-bottom: var(--sp-2);
}

/* --- UI Component: Comparison Tables --- */
.table-responsive-wrapper {
  width: 100%;
  overflow-x: auto;
  border-radius: var(--r-lg);
  border: 1px solid var(--border-medium);
  margin: var(--sp-6) 0;
  background: var(--bg-surface);
}

.matrix-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.92rem;
}

.matrix-table th {
  background: var(--bg-elevated);
  padding: var(--sp-4) var(--sp-5);
  font-weight: 700;
  color: var(--text-primary);
  border-bottom: 1px solid var(--border-medium);
}

.matrix-table td {
  padding: var(--sp-4) var(--sp-5);
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border-subtle);
}

.matrix-table tr:hover td {
  background: rgba(255, 255, 255, 0.02);
  color: var(--text-primary);
}

/* --- UI Component: Step-by-Step Pill Walkthrough --- */
.step-walkthrough-list {
  display: flex;
  flex-direction: column;
  gap: var(--sp-4);
  margin: var(--sp-6) 0;
}

.step-card {
  display: flex;
  gap: var(--sp-4);
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--r-lg);
  padding: var(--sp-5);
  align-items: flex-start;
}

.step-pill-number {
  width: 36px;
  height: 36px;
  border-radius: var(--r-pill);
  background: var(--accent-cyan);
  color: #fff;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 1rem;
}

.step-body h4 {
  font-size: 1.1rem;
  color: var(--text-primary);
  margin-bottom: var(--sp-1);
}

.step-body p {
  color: var(--text-secondary);
  font-size: 0.92rem;
  line-height: 1.5;
}

/* --- UI Component: FAQ Accordion --- */
.faq-accordion-group {
  display: flex;
  flex-direction: column;
  gap: var(--sp-3);
  margin: var(--sp-6) 0;
}

.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--r-md);
  overflow: hidden;
  transition: border-color var(--transition-fast);
}

.faq-item.is-active {
  border-color: var(--accent-cyan);
}

.faq-question-btn {
  width: 100%;
  padding: var(--sp-4) var(--sp-5);
  background: transparent;
  border: none;
  color: var(--text-primary);
  font-size: 1.05rem;
  font-weight: 700;
  text-align: left;
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
}

.faq-icon {
  font-size: 1.25rem;
  color: var(--accent-cyan);
  transition: transform var(--transition-fast);
}

.faq-item.is-active .faq-icon {
  transform: rotate(45deg);
}

.faq-answer-panel {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease-out;
  background: var(--bg-surface);
}

.faq-answer-inner {
  padding: var(--sp-5);
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.6;
  border-top: 1px solid var(--border-subtle);
}

/* --- UI Component: Interactive Functional Calculator --- */
.calculator-card {
  background: var(--bg-card);
  border: 1px solid var(--border-medium);
  border-radius: var(--r-xl);
  padding: var(--sp-8);
  box-shadow: var(--shadow-md);
}

.calc-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--sp-8);
  margin-top: var(--sp-6);
}

.form-group {
  margin-bottom: var(--sp-5);
}

.form-label {
  display: block;
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--text-secondary);
  margin-bottom: var(--sp-2);
}

.form-input {
  width: 100%;
  padding: var(--sp-3) var(--sp-4);
  background: var(--bg-elevated);
  border: 1px solid var(--border-medium);
  border-radius: var(--r-md);
  color: var(--text-primary);
  font-size: 1rem;
  outline: none;
  transition: border-color var(--transition-fast);
}

.form-input:focus {
  border-color: var(--accent-cyan);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

.calc-results-panel {
  background: var(--bg-elevated);
  border: 1px solid var(--border-accent);
  border-radius: var(--r-lg);
  padding: var(--sp-6);
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: var(--sp-4);
}

.calc-stat-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid var(--border-subtle);
  padding-bottom: var(--sp-3);
}

.calc-stat-label {
  font-size: 0.9rem;
  color: var(--text-muted);
}

.calc-stat-value {
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--accent-gold);
}

/* --- Institutional Trust Ribbons --- */
.trust-ribbon-bar {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--sp-8);
  padding: var(--sp-6);
  background: rgba(255, 255, 255, 0.02);
  border-radius: var(--r-lg);
  border: 1px solid var(--border-subtle);
  margin: var(--sp-12) 0;
  text-align: center;
}

.trust-item strong {
  display: block;
  font-size: 0.95rem;
  color: var(--text-primary);
}

.trust-item span {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* --- Site Footer --- */
.site-footer {
  background: #060911;
  border-top: 1px solid var(--border-subtle);
  padding: var(--sp-12) 0 var(--sp-8);
  margin-top: auto;
}

.footer-main-grid {
  display: grid;
  grid-template-columns: 2fr repeat(3, 1fr);
  gap: var(--sp-8);
  margin-bottom: var(--sp-8);
}

.footer-brand img {
  width: 44px;
  height: 44px;
  border-radius: var(--r-sm);
  margin-bottom: var(--sp-4);
}

.footer-col h4 {
  color: var(--text-primary);
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: var(--sp-4);
}

.footer-col ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--sp-2);
}

.footer-col a {
  color: var(--text-muted);
  font-size: 0.9rem;
}

.footer-col a:hover {
  color: var(--accent-cyan);
}

.footer-bottom-row {
  border-top: 1px solid var(--border-subtle);
  padding-top: var(--sp-6);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: var(--sp-4);
  font-size: 0.85rem;
  color: var(--text-muted);
}

.badge-21 {
  background: var(--accent-crimson);
  color: #fff;
  font-weight: 800;
  padding: 0.2rem 0.5rem;
  border-radius: 4px;
  font-size: 0.8rem;
}

/* --- Responsive Media Queries --- */
@media (max-width: 1080px) {
  .grid-3x2 {
    grid-template-columns: repeat(2, 1fr);
  }
  .context-media-box {
    grid-template-columns: 1fr;
  }
  .footer-main-grid {
    grid-template-columns: 1fr 1fr;
  }
  .post-layout-grid {
    grid-template-columns: 1fr;
  }
  .toc-sidebar {
    display: none;
  }
}

@media (max-width: 768px) {
  .nav-desktop {
    display: none;
  }
  .mobile-menu-btn {
    display: flex;
  }
  .grid-3x2 {
    grid-template-columns: 1fr;
  }
  .calc-grid {
    grid-template-columns: 1fr;
  }
  .footer-main-grid {
    grid-template-columns: 1fr;
  }
  .section-headline {
    font-size: 1.6rem;
  }
}