/* ==========================================================================
   GyógyInfók - Clinical Reference Theme CSS
   Local CSS only - No remote dependencies
   ========================================================================== */

:root {
  --primary: #0f766e;
  --primary-hover: #0d9488;
  --primary-light: rgba(15, 118, 110, 0.06);
  --primary-border: rgba(15, 118, 110, 0.2);
  
  --secondary: #2563eb;
  --secondary-light: rgba(37, 99, 235, 0.06);
  --secondary-border: rgba(37, 99, 235, 0.2);

  --slate-dark: #0f172a;
  --slate-body: #334155;
  --slate-muted: #64748b;
  
  --bg-body: #f8fafc;
  --bg-panel: #ffffff;
  --bg-input: #f1f5f9;

  --border-color: #e2e8f0;
  --border-color-dark: #cbd5e1;

  --shadow-sm: 0 1px 3px rgba(15, 23, 42, 0.04);
  --shadow-md: 0 4px 16px rgba(15, 23, 42, 0.06), 0 1px 2px rgba(15, 23, 42, 0.04);
  --shadow-lg: 0 10px 30px rgba(15, 23, 42, 0.08);

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;

  --max-width: 1200px;
}

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

html {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, Cantarell, "Open Sans", "Helvetica Neue", sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: var(--slate-body);
  background-color: var(--bg-body);
  -webkit-font-smoothing: antialiased;
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background:
    radial-gradient(circle at 8% 4%, rgba(20, 184, 166, 0.08), transparent 28rem),
    linear-gradient(180deg, #fbfefd 0%, var(--bg-body) 38%, #eef5f5 100%);
}

/* Focus & Keyboard Accessibility */
:focus-visible {
  outline: 3px solid var(--secondary);
  outline-offset: 3px;
}

.skip-link {
  position: absolute;
  top: -100px;
  left: 1rem;
  background: var(--slate-dark);
  color: #ffffff;
  padding: 0.75rem 1.25rem;
  border-radius: var(--radius-sm);
  font-weight: 600;
  z-index: 9999;
  transition: top 0.2s ease;
  text-decoration: none;
}

.skip-link:focus {
  top: 1rem;
}

/* Layout Containers */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

.site-main {
  flex: 1;
  padding-bottom: 4rem;
}

/* Top Announcement Bar */
.top-bar {
  background: var(--slate-dark);
  color: #94a3b8;
  font-size: 0.8rem;
  padding: 0.4rem 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.top-bar-inner {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

.top-bar-divider {
  color: #475569;
}

/* App Header & Nav */
#app-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border-color);
  transition: all 0.2s ease;
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0.85rem 1.5rem;
}

.logo {
  font-size: 1.45rem;
  font-weight: 800;
  color: var(--slate-dark);
  text-decoration: none;
  letter-spacing: -0.03em;
  display: flex;
  align-items: center;
  gap: 0.15rem;
}

.logo span {
  color: var(--primary);
}

#nav-menu {
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

#nav-menu a {
  padding: 0.5rem 0.85rem;
  color: var(--slate-body);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  border-radius: var(--radius-sm);
  transition: all 0.15s ease;
}

#nav-menu a:hover {
  color: var(--primary);
  background: var(--primary-light);
}

#nav-menu a.active {
  color: var(--primary);
  font-weight: 700;
  background: var(--primary-light);
}

#nav-menu a.nav-btn-partner {
  background: var(--secondary);
  color: #ffffff !important;
  font-weight: 600;
  margin-left: 0.5rem;
  padding: 0.5rem 1rem;
  border-radius: var(--radius-md);
  box-shadow: 0 2px 8px rgba(37, 99, 235, 0.25);
}

#nav-menu a.nav-btn-partner:hover {
  background: #1d4ed8;
}

/* Hamburger Toggle for Mobile */
.hamburger {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  flex-direction: column;
  gap: 5px;
}

.hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--slate-dark);
  border-radius: 2px;
  transition: all 0.2s ease;
}

/* Bento Grid System */
.bento-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 1.25rem;
  margin-top: 2rem;
  margin-bottom: 3rem;
}

.bento-panel {
  background: var(--bg-panel);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  box-shadow: var(--shadow-md);
  display: flex;
  flex-direction: column;
  position: relative;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  overflow: hidden;
}

.bento-panel:hover {
  box-shadow: var(--shadow-lg);
}

.span-12 { grid-column: span 12; }
.span-8 { grid-column: span 8; }
.span-6 { grid-column: span 6; }
.span-4 { grid-column: span 4; }
.row-2 { grid-row: span 2; }

/* Bento Badges & Titles */
.bento-badge {
  align-self: flex-start;
  display: inline-block;
  padding: 0.25rem 0.65rem;
  background: var(--primary-light);
  color: var(--primary);
  border: 1px solid var(--primary-border);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border-radius: 999px;
  margin-bottom: 1rem;
}

.bento-badge.badge-neutral {
  background: #f1f5f9;
  color: #475569;
  border-color: #cbd5e1;
}

.bento-badge.badge-blue {
  background: var(--secondary-light);
  color: var(--secondary);
  border-color: var(--secondary-border);
}

.panel-title {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--slate-dark);
  margin-bottom: 0.75rem;
  letter-spacing: 0.02em;
}

.panel-icon {
  width: 1.15rem;
  height: 1.15rem;
  color: var(--primary);
  flex-shrink: 0;
}

.hero-panel h1 {
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  font-weight: 800;
  line-height: 1.25;
  color: var(--slate-dark);
  margin-bottom: 1rem;
}

.hero-panel h1 span {
  color: var(--primary);
}

.hero-panel {
  background: linear-gradient(135deg, #ffffff 0%, #f1fbf9 100%);
  border-color: rgba(15, 118, 110, 0.18);
}

.hero-panel::after {
  content: "";
  position: absolute;
  width: 15rem;
  height: 15rem;
  right: -7rem;
  bottom: -8rem;
  border: 1px solid rgba(15, 118, 110, 0.12);
  border-radius: 50%;
  box-shadow: 0 0 0 2rem rgba(15, 118, 110, 0.035), 0 0 0 4rem rgba(15, 118, 110, 0.025);
  pointer-events: none;
}

.panel-text {
  font-size: 0.95rem;
  color: var(--slate-body);
  line-height: 1.65;
  margin-bottom: 1rem;
}

.panel-text.lead-text {
  font-size: 1.1rem;
}

.panel-text.tiny-text {
  font-size: 0.85rem;
  color: var(--slate-muted);
}

/* Callout Blocks */
.callout-block {
  background: var(--bg-body);
  border: 1px solid var(--border-color);
  border-left: 4px solid var(--primary);
  border-radius: var(--radius-md);
  padding: 1.15rem;
  margin-top: auto;
  font-size: 0.9rem;
}

.callout-block.orvosok-callout {
  display: flex;
  gap: 0.85rem;
  background: rgba(37, 99, 235, 0.03);
  border-color: var(--secondary-border);
  border-left-color: var(--secondary);
}

.callout-block.highlight-callout {
  background: var(--primary-light);
  border-color: var(--primary-border);
  border-left-color: var(--primary);
  margin-top: 1.5rem;
}

.callout-block.warning-callout {
  background: #fffbe6;
  border-color: #ffe58f;
  border-left-color: #faad14;
}

.callout-icon {
  color: var(--secondary);
  flex-shrink: 0;
  margin-top: 0.15rem;
}

.callout-content a,
.callout-block a {
  color: var(--secondary);
  font-weight: 700;
  text-decoration: underline;
}

/* Bento Link CTA */
.bento-link {
  margin-top: auto;
  padding-top: 1rem;
  display: inline-flex;
  align-items: center;
  color: var(--primary);
  font-weight: 700;
  font-size: 0.9rem;
  text-decoration: none;
  transition: gap 0.2s ease;
}

.bento-link:hover {
  text-decoration: underline;
  color: var(--primary-hover);
}

/* Milestones Timeline Panel */
.milestones-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  font-size: 0.88rem;
  color: var(--slate-body);
  margin-top: 0.5rem;
}

.milestone-item {
  padding: 0.5rem 0.75rem;
  background: var(--bg-body);
  border-radius: var(--radius-sm);
  border-left: 3px solid var(--border-color-dark);
}

.milestone-item.active-milestone {
  background: var(--primary-light);
  border-left-color: var(--primary);
  color: var(--primary);
  font-weight: 700;
}

/* Search Box Widget */
.bento-search-box {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 0.6rem 0.85rem;
  margin-bottom: 1rem;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.bento-search-box:focus-within {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-light);
}

.bento-search-box.search-box-large {
  max-width: 560px;
  padding: 0.75rem 1rem;
}

.search-icon {
  width: 1.1rem;
  height: 1.1rem;
  color: var(--slate-muted);
  flex-shrink: 0;
}

.bento-search-box input {
  width: 100%;
  border: none;
  background: transparent;
  outline: none;
  font-size: 0.9rem;
  color: var(--slate-dark);
}

/* BNO List Items */
.bento-bno-list {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
  max-height: 220px;
  overflow-y: auto;
  padding-right: 0.25rem;
  margin-bottom: 0.5rem;
}

.bno-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.5rem 0.75rem;
  background: var(--bg-body);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  transition: background 0.15s ease;
}

.bno-item:hover {
  background: #f1f5f9;
}

.bno-item .code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-weight: 700;
  color: var(--primary);
  background: var(--primary-light);
  padding: 0.15rem 0.45rem;
  border-radius: 4px;
  font-size: 0.8rem;
  flex-shrink: 0;
}

.bno-item .name {
  color: var(--slate-dark);
  font-weight: 500;
}

/* Phone Simulator Chatbot */
.phone-simulator {
  background: var(--slate-dark);
  border-radius: var(--radius-md);
  border: 1px solid #334155;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  height: 240px;
  margin-bottom: 0.5rem;
}

.phone-simulator-large {
  height: 320px;
  max-width: 480px;
  margin-top: 1rem;
}

.phone-simulator-header {
  background: #1e293b;
  color: #f8fafc;
  font-size: 0.78rem;
  font-weight: 600;
  padding: 0.5rem 0.75rem;
  text-align: center;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  border-bottom: 1px solid #334155;
}

.phone-simulator-body {
  flex: 1;
  padding: 0.75rem;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.phone-sms-msg {
  max-width: 85%;
  padding: 0.5rem 0.75rem;
  border-radius: 12px;
  font-size: 0.8rem;
  line-height: 1.4;
}

.phone-sms-msg.recv {
  background: #334155;
  color: #f8fafc;
  align-self: flex-start;
  border-bottom-left-radius: 2px;
}

.phone-sms-msg.sent {
  background: var(--primary);
  color: #ffffff;
  align-self: flex-end;
  border-bottom-right-radius: 2px;
}

.phone-simulator-footer {
  display: flex;
  gap: 0.4rem;
  padding: 0.5rem;
  background: #1e293b;
  border-top: 1px solid #334155;
}

.phone-simulator-footer input {
  flex: 1;
  background: #0f172a;
  border: 1px solid #334155;
  color: #ffffff;
  padding: 0.4rem 0.65rem;
  border-radius: 6px;
  font-size: 0.8rem;
  outline: none;
}

.phone-simulator-footer button {
  background: var(--primary);
  color: #ffffff;
  border: none;
  padding: 0.4rem 0.75rem;
  border-radius: 6px;
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
}

.phone-simulator-footer button:hover {
  background: var(--primary-hover);
}

/* Calculator Console Widget */
.calc-console-row {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
}

.calc-console-row input {
  flex: 1;
  padding: 0.55rem 0.75rem;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  background: var(--bg-input);
  outline: none;
}

.calc-console-row input:focus {
  border-color: var(--primary);
}

.calc-console-row button {
  background: var(--primary);
  color: #ffffff;
  border: none;
  padding: 0.55rem 1rem;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
}

.calc-console-result {
  background: var(--bg-body);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 0.85rem;
  margin-bottom: 0.5rem;
}

.calc-res-title {
  font-weight: 700;
  color: var(--primary);
  font-size: 0.9rem;
}

.calc-res-val {
  margin-top: 0.25rem;
  font-weight: 600;
  color: var(--slate-dark);
  font-size: 0.88rem;
}

.calc-res-sub {
  margin-top: 0.25rem;
  font-size: 0.78rem;
  color: var(--slate-muted);
}

.calc-widget-large {
  max-width: 540px;
  background: var(--bg-panel);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
  margin-top: 1rem;
}

/* FTAR File Tree */
.tree-box {
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 0.85rem;
  height: 160px;
  overflow-y: auto;
  margin-bottom: 0.5rem;
}

.tree-box-large {
  height: 260px;
  max-width: 680px;
  margin-top: 1rem;
}

.file-tree {
  list-style: none;
  padding: 0;
  margin: 0;
  font-size: 0.85rem;
}

.file-tree-node {
  margin-bottom: 0.35rem;
}

.file-tree-dir {
  font-weight: 700;
  color: var(--slate-dark);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.4rem;
  user-select: none;
}

.file-tree-dir::before {
  content: "";
  width: 0.9rem;
  height: 0.65rem;
  border: 1.5px solid var(--primary);
  border-radius: 2px;
  display: inline-block;
  flex: 0 0 auto;
  background: linear-gradient(var(--primary-light) 0 35%, transparent 35%);
}

.file-tree-dir.expanded::before {
  background: var(--primary-light);
}

.file-tree-sub {
  list-style: none;
  padding-left: 1.25rem;
  margin-top: 0.35rem;
  display: none;
}

.file-tree-sub.open {
  display: block;
}

.file-tree-file a {
  color: var(--secondary);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}

.file-tree-file a::before {
  content: "";
  width: 0.65rem;
  height: 0.78rem;
  border: 1.5px solid var(--secondary);
  border-radius: 2px;
  display: inline-block;
  flex: 0 0 auto;
}

.file-tree-file a:hover {
  text-decoration: underline;
}

/* Tables */
table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.25rem 0;
  font-size: 0.9rem;
  background: var(--bg-panel);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  overflow: hidden;
}

th, td {
  padding: 0.75rem 1rem;
  text-align: left;
  border-bottom: 1px solid var(--border-color);
}

th {
  background: #f1f5f9;
  color: var(--slate-dark);
  font-weight: 700;
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

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

/* Editorial Sections & Guidance Grids */
.home-editorial-section {
  margin-top: 2rem;
  margin-bottom: 3rem;
}

.editorial-card {
  background: var(--bg-panel);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 2rem;
  box-shadow: var(--shadow-sm);
}

.editorial-topics-section {
  margin-top: 3rem;
}

.section-header {
  margin-bottom: 1.5rem;
}

.section-header h2 {
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--slate-dark);
  margin-top: 0.25rem;
}

.topic-cards-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
}

.topic-card {
  background: var(--bg-panel);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  text-decoration: none;
  color: var(--slate-body);
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-sm);
  transition: all 0.2s ease;
}

.topic-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  border-color: var(--primary-border);
}

.topic-card-header {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin-bottom: 0.75rem;
}

.topic-card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--slate-dark);
}

.topic-card p {
  font-size: 0.9rem;
  line-height: 1.6;
  margin-bottom: 1.25rem;
  color: var(--slate-body);
}

.card-arrow {
  margin-top: auto;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--primary);
}

/* Guidance Grid on Dental/Interior */
.guidance-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.25rem;
  margin-top: 1.25rem;
}

.guidance-card {
  background: var(--bg-panel);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.15rem;
}

/* Single Page Structure */
.breadcrumb-nav {
  margin-top: 1.5rem;
  margin-bottom: 1rem;
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  list-style: none;
  font-size: 0.85rem;
  color: var(--slate-muted);
}

.breadcrumb li::after {
  content: "/";
  margin-left: 0.5rem;
  color: var(--border-color-dark);
}

.breadcrumb li:last-child::after {
  content: "";
}

.breadcrumb a {
  color: var(--slate-muted);
  text-decoration: none;
}

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

.single-page-header {
  margin-bottom: 2rem;
}

.single-page-header h1 {
  font-size: clamp(2rem, 4vw, 2.8rem);
  font-weight: 800;
  color: var(--slate-dark);
  margin-top: 0.35rem;
  line-height: 1.2;
}

.single-page-lead {
  font-size: 1.15rem;
  color: var(--slate-body);
  line-height: 1.65;
  margin-top: 0.75rem;
  max-width: 800px;
}

.single-grid {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 2rem;
}

.single-article {
  background: var(--bg-panel);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 2rem;
  box-shadow: var(--shadow-sm);
}

/* Prose Typography */
.prose h2 {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--slate-dark);
  margin-top: 1.75rem;
  margin-bottom: 0.75rem;
  border-bottom: 2px solid var(--primary-light);
  padding-bottom: 0.35rem;
}

.prose h3 {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--slate-dark);
  margin-top: 1.25rem;
  margin-bottom: 0.5rem;
}

.prose p {
  margin-bottom: 1.15rem;
  line-height: 1.7;
}

.prose ul, .prose ol {
  margin-bottom: 1.15rem;
  padding-left: 1.5rem;
}

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

/* FAQ Accordion Section */
.faq-section {
  margin-top: 2.5rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border-color);
}

.faq-accordion {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-top: 1rem;
}

.faq-item {
  background: var(--bg-body);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: border-color 0.15s ease;
}

.faq-item[open] {
  border-color: var(--primary-border);
}

.faq-question {
  padding: 0.85rem 1.15rem;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--slate-dark);
  cursor: pointer;
  user-select: none;
}

.faq-question:hover {
  background: #f1f5f9;
}

.faq-answer {
  padding: 0 1.15rem 1rem 1.15rem;
  font-size: 0.9rem;
  color: var(--slate-body);
  line-height: 1.6;
}

/* Single Sidebar */
.single-sidebar {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.sidebar-card {
  background: var(--bg-panel);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
  box-shadow: var(--shadow-sm);
}

.sidebar-card-title {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 700;
  color: var(--slate-dark);
  font-size: 0.95rem;
  margin-bottom: 0.75rem;
}

.highlights-list {
  list-style: none;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  font-size: 0.85rem;
}

.highlights-list li {
  position: relative;
  padding-left: 1.25rem;
  color: var(--slate-body);
}

.highlights-list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--primary);
  font-weight: 800;
}

.partner-card {
  border-color: var(--secondary-border);
  background: rgba(37, 99, 235, 0.02);
}

.partner-card h4 {
  font-size: 1rem;
  color: var(--slate-dark);
  margin-bottom: 0.5rem;
}

.partner-card p {
  font-size: 0.85rem;
  color: var(--slate-muted);
  margin-bottom: 1rem;
}

.btn-sidebar-partner {
  display: block;
  text-align: center;
  background: var(--secondary);
  color: #ffffff;
  text-decoration: none;
  font-weight: 700;
  font-size: 0.85rem;
  padding: 0.65rem 1rem;
  border-radius: var(--radius-md);
  transition: background 0.15s ease;
}

.btn-sidebar-partner:hover {
  background: #1d4ed8;
}

.sidebar-nav-links {
  list-style: none;
  padding: 0;
  margin-top: 0.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  font-size: 0.85rem;
}

.sidebar-nav-links a {
  color: var(--slate-body);
  text-decoration: none;
  padding: 0.35rem 0.5rem;
  border-radius: var(--radius-sm);
  display: block;
}

.sidebar-nav-links a:hover {
  background: var(--primary-light);
  color: var(--primary);
}

/* Global Footer */
#app-footer {
  background: var(--slate-dark);
  color: #94a3b8;
  padding-top: 3.5rem;
  padding-bottom: 2rem;
  border-top: 1px solid #1e293b;
}

.footer-container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 2.5rem;
  margin-bottom: 2.5rem;
}

.footer-col h4 {
  color: #f8fafc;
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 1rem;
  letter-spacing: 0.02em;
}

.footer-col ul {
  list-style: none;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  font-size: 0.88rem;
}

.footer-col ul a {
  color: #94a3b8;
  text-decoration: none;
  transition: color 0.15s ease;
}

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

.footer-logo {
  color: #ffffff;
  margin-bottom: 0.75rem;
}

.brand-desc {
  font-size: 0.88rem;
  line-height: 1.6;
  margin-bottom: 1.25rem;
  max-width: 420px;
}

.partner-badge-box {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  font-size: 0.82rem;
  background: #1e293b;
  padding: 0.75rem 1rem;
  border-radius: var(--radius-md);
  border: 1px solid #334155;
  width: fit-content;
}

.partner-link {
  color: #60a5fa;
  font-weight: 700;
  text-decoration: none;
}

.partner-link:hover {
  text-decoration: underline;
}

.footer-bottom {
  border-top: 1px solid #1e293b;
  padding-top: 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.8rem;
  color: #64748b;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.footer-bottom .disclaimer {
  font-size: 0.75rem;
}

/* Button UI Components */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--primary);
  color: #ffffff;
  font-weight: 700;
  font-size: 0.9rem;
  padding: 0.65rem 1.25rem;
  border-radius: var(--radius-md);
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: background 0.15s ease;
}

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

.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-body);
  color: var(--slate-dark);
  font-weight: 600;
  font-size: 0.9rem;
  padding: 0.65rem 1.25rem;
  border-radius: var(--radius-md);
  text-decoration: none;
  border: 1px solid var(--border-color);
  transition: background 0.15s ease;
}

.btn-secondary:hover {
  background: #e2e8f0;
}

/* Responsive Styles */
@media (max-width: 1024px) {
  .span-8, .span-6, .span-4 {
    grid-column: span 12;
  }
  .row-2 {
    grid-row: auto;
  }
  .single-grid {
    grid-template-columns: 1fr;
  }
  .topic-cards-grid {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .hamburger {
    display: flex;
  }

  #nav-menu {
    position: fixed;
    top: 60px;
    left: 0;
    right: 0;
    background: #ffffff;
    border-bottom: 1px solid var(--border-color);
    flex-direction: column;
    align-items: stretch;
    padding: 1rem 1.5rem;
    gap: 0.5rem;
    display: none;
    box-shadow: var(--shadow-lg);
  }

  #nav-menu.open {
    display: flex;
  }

  .hamburger.open span:nth-child(1) {
    transform: rotate(45deg) translate(5deg, 5deg);
  }
  .hamburger.open span:nth-child(2) {
    opacity: 0;
  }
  .hamburger.open span:nth-child(3) {
    transform: rotate(-45deg) translate(5deg, -5deg);
  }

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

  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 900px) {
  .container,
  .footer-container,
  .top-bar-inner {
    padding-left: 1rem;
    padding-right: 1rem;
  }

  .single-article {
    padding: 1.5rem;
    min-width: 0;
    overflow: hidden;
  }

  .prose {
    min-width: 0;
  }

  .prose table {
    display: block;
    width: 100%;
    min-width: 0;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }

  .prose pre {
    max-width: 100%;
    overflow-x: auto;
  }
}

@media (max-width: 640px) {
  .top-bar-inner {
    gap: 0.35rem 0.5rem;
    justify-content: flex-start;
    flex-wrap: wrap;
    font-size: 0.7rem;
    line-height: 1.35;
  }

  .top-bar-divider {
    display: none;
  }

  .nav-container {
    padding: 0.75rem 1rem;
  }

  #nav-menu {
    top: 58px;
    padding: 0.75rem 1rem 1rem;
  }

  #nav-menu a {
    padding: 0.7rem 0.75rem;
  }

  .site-main {
    padding-bottom: 2.5rem;
  }

  .bento-grid {
    gap: 0.85rem;
    margin-top: 1rem;
    margin-bottom: 2rem;
  }

  .bento-panel,
  .single-article,
  .sidebar-card,
  .editorial-card {
    padding: 1.1rem;
    border-radius: 13px;
  }

  .hero-panel h1 {
    font-size: clamp(1.65rem, 8vw, 2.15rem);
  }

  .panel-text.lead-text,
  .single-page-lead {
    font-size: 1rem;
  }

  .calc-console-row {
    flex-wrap: wrap;
  }

  .calc-console-row input,
  .calc-console-row button {
    min-width: 0;
  }

  .calc-console-row input {
    flex: 1 1 9rem;
  }

  .calc-console-row button {
    flex: 0 0 auto;
  }

  .phone-simulator-large {
    height: 290px;
  }

  .phone-simulator-footer {
    flex-wrap: wrap;
  }

  .phone-simulator-footer input {
    min-width: 0;
    flex-basis: 8rem;
  }

  .footer-grid {
    gap: 1.5rem;
  }

  .footer-bottom {
    font-size: 0.75rem;
  }
}