/* Noble Gas Landing Page Styles */
/* ================================ */

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

:root {
  --green-primary: #4CAF50;
  --green-dark: #388E3C;
  --green-light: #66BB6A;
  --green-subtle: #E8F5E9;
  --dark: #1a1a2e;
  --dark-gray: #333;
  --medium-gray: #666;
  --light-gray: #f5f5f5;
  --white: #fff;
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.08);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.12);
  --shadow-lg: 0 8px 32px rgba(0,0,0,0.16);
  --radius: 12px;
  --radius-sm: 8px;
  --transition: 0.3s ease;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: 'Urbanist', 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  color: var(--dark-gray);
  line-height: 1.6;
  background: var(--white);
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: var(--green-primary);
  text-decoration: none;
  transition: color var(--transition);
}

a:hover {
  color: var(--green-dark);
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ================================ */
/* Navigation */
/* ================================ */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(0,0,0,0.06);
  transition: box-shadow var(--transition);
}

.navbar.scrolled {
  box-shadow: var(--shadow-sm);
}

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

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--dark);
  letter-spacing: -0.5px;
}

.nav-logo .logo-img {
  width: 60px;
  height: auto;
  border-radius: 0;
  object-fit: contain;
}

.nav-logo .logo-icon {
  width: 36px;
  height: 36px;
  background: var(--green-primary);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: 900;
  font-size: 1.1rem;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
}

.nav-links a {
  color: var(--medium-gray);
  font-weight: 500;
  font-size: 0.95rem;
  transition: color var(--transition);
}

.nav-links a:hover {
  color: var(--green-primary);
}

.nav-cta {
  background: var(--green-primary);
  color: var(--white) !important;
  padding: 10px 24px;
  border-radius: 50px;
  font-weight: 600;
  font-size: 0.9rem;
  transition: background var(--transition), transform var(--transition);
}

.nav-cta:hover {
  background: var(--green-dark);
  color: var(--white) !important;
  transform: translateY(-1px);
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--dark);
  margin: 6px 0;
  transition: transform 0.3s ease, opacity 0.3s ease;
  transform-origin: center;
}

/* X icon when drawer is open */
.nav-toggle.active span:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
}
.nav-toggle.active span:nth-child(2) {
  opacity: 0;
}
.nav-toggle.active span:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
}

/* ================================ */
/* Hero Section */
/* ================================ */
.hero {
  padding: 140px 0 80px;
  background: linear-gradient(135deg, var(--green-subtle) 0%, var(--white) 60%);
  overflow: hidden;
}

.hero .container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.hero-content {
  max-width: 540px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--white);
  border: 1px solid rgba(76,175,80,0.2);
  padding: 6px 16px;
  border-radius: 50px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--green-primary);
  margin-bottom: 24px;
}

.hero-badge::before {
  content: '';
  width: 8px;
  height: 8px;
  background: var(--green-primary);
  border-radius: 50%;
}

.hero h1 {
  font-size: 3.2rem;
  font-weight: 800;
  color: var(--dark);
  line-height: 1.15;
  letter-spacing: -1px;
  margin-bottom: 20px;
}

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

.hero-description {
  font-size: 1.15rem;
  color: var(--medium-gray);
  line-height: 1.7;
  margin-bottom: 36px;
}

.store-badges {
  display: flex;
  gap: 16px;
  margin-bottom: 32px;
}

.store-badges a {
  display: block;
  transition: transform var(--transition), opacity var(--transition);
}

.store-badges a:hover {
  transform: translateY(-2px);
  opacity: 0.9;
}

.store-badges img {
  height: 48px;
  width: auto;
  max-width: 162px;
  object-fit: contain;
}

.store-badges a:first-child img {
  height: 48px;
  width: 162px;
  object-fit: contain;
}

.hero-stats {
  display: flex;
  gap: 40px;
}

.hero-stat {
  text-align: left;
}

.hero-stat .number {
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--dark);
}

.hero-stat .label {
  font-size: 0.85rem;
  color: var(--medium-gray);
  font-weight: 500;
}

/* Hero Screenshots */
.hero-screenshots {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 500px;
}

.phone-mockup {
  position: relative;
  width: 260px;
  border-radius: 36px;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  border: 8px solid #1a1a2e;
  background: #1a1a2e;
}

.phone-mockup img {
  width: 100%;
  display: block;
  border-radius: 28px;
}

.phone-mockup.secondary {
  position: absolute;
  width: 220px;
  opacity: 0.85;
  z-index: -1;
}

.phone-mockup.left {
  left: -20px;
  top: 40px;
  transform: rotate(-5deg);
}

.phone-mockup.right {
  right: -20px;
  top: 40px;
  transform: rotate(5deg);
}

/* ================================ */
/* Screenshots Gallery / Carousel */
/* ================================ */
.screenshots-section {
  padding: 80px 0;
  background: var(--light-gray);
}

.section-header {
  text-align: center;
  margin-bottom: 48px;
}

.section-header h2 {
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--dark);
  margin-bottom: 12px;
  letter-spacing: -0.5px;
}

.section-header p {
  font-size: 1.1rem;
  color: var(--medium-gray);
  max-width: 600px;
  margin: 0 auto;
}

.screenshots-carousel {
  display: flex;
  gap: 24px;
  overflow-x: auto;
  padding: 20px 0 40px;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}

.screenshots-carousel::-webkit-scrollbar {
  display: none;
}

.screenshot-card {
  flex: 0 0 auto;
  scroll-snap-align: center;
}

.screenshot-card .phone-frame {
  width: 240px;
  border-radius: 30px;
  overflow: hidden;
  box-shadow: var(--shadow-md);
  border: 6px solid #222;
  background: #222;
  transition: transform var(--transition);
}

.screenshot-card:hover .phone-frame {
  transform: translateY(-8px);
}

.screenshot-card .phone-frame img {
  width: 100%;
  border-radius: 24px;
}

.screenshot-card .caption {
  text-align: center;
  margin-top: 16px;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--dark-gray);
}

/* ================================ */
/* Features Section */
/* ================================ */
.features-section {
  padding: 100px 0;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.feature-card {
  padding: 32px;
  border-radius: var(--radius);
  background: var(--white);
  border: 1px solid rgba(0,0,0,0.06);
  transition: transform var(--transition), box-shadow var(--transition);
}

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.feature-icon {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  background: var(--green-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  margin-bottom: 20px;
}

.feature-card h3 {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 10px;
}

.feature-card p {
  font-size: 0.95rem;
  color: var(--medium-gray);
  line-height: 1.6;
}

/* ================================ */
/* CTA Section */
/* ================================ */
.cta-section {
  padding: 80px 0;
  background: linear-gradient(135deg, var(--green-primary), var(--green-dark));
  color: var(--white);
  text-align: center;
}

.cta-section h2 {
  font-size: 2.4rem;
  font-weight: 800;
  margin-bottom: 16px;
}

.cta-section p {
  font-size: 1.1rem;
  opacity: 0.9;
  margin-bottom: 36px;
  max-width: 500px;
  margin-left: auto;
  margin-right: auto;
}

.cta-buttons {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

/* CTA download card */
.cta-card {
  display: flex;
  align-items: center;
  background: rgba(255,255,255,0.1);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: 20px;
  padding: 40px 48px;
  max-width: 640px;
  margin: 0 auto;
  gap: 40px;
}

.cta-card-left {
  flex: 1;
  text-align: left;
}

.cta-card-left h3 {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 4px;
  color: #fff;
}

.cta-card-left p {
  font-size: 0.9rem;
  color: rgba(255,255,255,0.7);
  margin-bottom: 20px;
}

.cta-card-left .store-badges {
  display: flex;
  gap: 12px;
  margin-bottom: 16px;
}

.cta-card-left .store-badges img {
  height: 44px;
  width: auto;
  max-width: 148px;
  object-fit: contain;
}

.cta-card-left .store-badges a:first-child img {
  height: 44px;
  width: 148px;
  object-fit: contain;
}

.cta-guide-link {
  font-size: 0.85rem;
  color: rgba(255,255,255,0.7);
  text-decoration: none;
  font-weight: 500;
  transition: color 0.2s;
}

.cta-guide-link:hover {
  color: #fff;
}

.cta-card-divider {
  width: 1px;
  height: 140px;
  background: rgba(255,255,255,0.2);
  flex-shrink: 0;
}

.cta-card-right {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.cta-qr-img {
  width: 160px;
  height: 160px;
  border-radius: 16px;
  padding: 10px;
  background: #fff;
}

.cta-card-right span {
  font-size: 11px;
  color: rgba(255,255,255,0.5);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  font-weight: 500;
}

@media (max-width: 640px) {
  .cta-card {
    flex-direction: column;
    padding: 28px 24px;
    gap: 24px;
  }
  .cta-card-left { text-align: center; }
  .cta-card-left .store-badges { justify-content: center; }
  .cta-card-divider { width: 80%; height: 1px; }
  .cta-qr-img { width: 140px; height: 140px; }
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: 50px;
  font-weight: 600;
  font-size: 1rem;
  transition: transform var(--transition), background var(--transition);
  cursor: pointer;
  border: none;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn-white {
  background: var(--white);
  color: var(--green-primary);
}

.btn-white:hover {
  background: #f0f0f0;
  color: var(--green-dark);
}

.btn-outline {
  background: transparent;
  color: var(--white);
  border: 2px solid rgba(255,255,255,0.4);
}

.btn-outline:hover {
  border-color: var(--white);
  background: rgba(255,255,255,0.1);
  color: var(--white);
}

/* ================================ */
/* Footer */
/* ================================ */
.footer {
  padding: 60px 0 30px;
  background: var(--dark);
  color: rgba(255,255,255,0.7);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}

.footer-brand .footer-logo {
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--white);
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.footer-brand .footer-logo .logo-icon {
  width: 32px;
  height: 32px;
  background: var(--green-primary);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: 900;
  font-size: 0.9rem;
}

.footer-brand p {
  font-size: 0.95rem;
  line-height: 1.6;
  max-width: 300px;
}

.footer-address {
  font-style: normal;
  font-size: 0.85rem;
  color: rgba(255,255,255,0.5);
  margin-top: 12px;
  line-height: 1.5;
}

.footer-col h4 {
  color: var(--white);
  font-weight: 700;
  font-size: 0.95rem;
  margin-bottom: 20px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.footer-col ul {
  list-style: none;
}

.footer-col li {
  margin-bottom: 12px;
}

.footer-col a {
  color: rgba(255,255,255,0.6);
  font-size: 0.9rem;
  transition: color var(--transition);
}

.footer-col a:hover {
  color: var(--green-light);
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.85rem;
}

/* ================================ */
/* Responsive */
/* ================================ */
@media (max-width: 968px) {
  .hero .container {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .hero-content {
    max-width: 100%;
  }

  .hero h1 {
    font-size: 2.4rem;
  }

  .store-badges {
    justify-content: center;
  }

  .hero-stats {
    justify-content: center;
  }

  .hero-screenshots {
    min-height: 400px;
  }

  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }

  /* ── Right-side slide drawer ── */
  .nav-links {
    position: fixed !important;
    top: 0 !important;
    right: 0 !important;
    bottom: 0 !important;
    left: auto !important;
    width: 260px !important;
    height: 100vh !important;
    min-height: 100vh !important;
    margin: 0 !important;
    padding: 80px 24px 40px !important;
    background: #ffffff !important;
    flex-direction: column !important;
    align-items: stretch !important;
    flex-shrink: 0 !important;
    gap: 0 !important;
    list-style: none !important;
    box-shadow: -8px 0 30px rgba(0,0,0,0.15) !important;
    z-index: 1000 !important;
    transform: translateX(100%) !important;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1) !important;
    overflow-y: auto !important;
  }

  .nav-links.open {
    transform: translateX(0) !important;
  }

  .nav-links li {
    list-style: none;
  }

  .nav-links li a {
    display: block;
    padding: 14px 8px;
    font-size: 1rem;
    font-weight: 500;
    color: #222;
    border-bottom: 1px solid #f0f0f0;
    text-decoration: none;
    transition: color 0.15s, background 0.15s;
  }

  .nav-links li a:hover {
    color: var(--green-primary);
    background: #f9fafb;
  }

  .nav-links li:last-child a {
    border-bottom: none;
  }

  .nav-links .nav-cta {
    margin-top: 16px;
    text-align: center;
    display: block;
    color: #fff !important;
    border-bottom: none !important;
    border-radius: 8px;
    padding: 12px 8px !important;
  }

  .nav-links .nav-cta:hover {
    background: var(--green-dark) !important;
  }

  /* Backdrop */
  .nav-backdrop {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0);
    z-index: 999;
    pointer-events: none;
    transition: background 0.3s;
  }

  .nav-backdrop.open {
    background: rgba(0, 0, 0, 0.4);
    pointer-events: auto;
  }

  .nav-toggle {
    display: block;
    z-index: 1001;
  }
}

@media (max-width: 640px) {
  .hero {
    padding: 120px 0 60px;
  }

  .hero h1 {
    font-size: 2rem;
  }

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

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 12px;
    text-align: center;
  }

  .cta-section h2 {
    font-size: 1.8rem;
  }

  .phone-mockup.secondary {
    display: none;
  }

  .hero-screenshots {
    min-height: 350px;
  }

  .hero-stats {
    flex-direction: row;
    gap: 12px;
    justify-content: center;
  }

  .hero-stat .number {
    font-size: 1.1rem;
  }

  .hero-stat .label {
    font-size: 0.7rem;
  }
}

/* Developer attribution (hidden) */
.dev-credit {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ================================ */
/* Guide Page Styles */
/* ================================ */
.guide-layout {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 48px;
  padding: 100px 0 60px;
  min-height: 100vh;
}

.guide-sidebar {
  position: sticky;
  top: 96px;
  height: fit-content;
  max-height: calc(100vh - 120px);
  overflow-y: auto;
}

.guide-sidebar h3 {
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--medium-gray);
  margin-bottom: 16px;
}

.guide-toc {
  list-style: none;
}

.guide-toc li {
  margin-bottom: 4px;
}

.guide-toc a {
  display: block;
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  color: var(--medium-gray);
  font-size: 0.9rem;
  font-weight: 500;
  transition: all var(--transition);
  border-left: 3px solid transparent;
}

.guide-toc a:hover,
.guide-toc a.active {
  color: var(--green-primary);
  background: var(--green-subtle);
  border-left-color: var(--green-primary);
}

.guide-actions {
  margin-top: 24px;
  padding-top: 24px;
  border-top: 1px solid rgba(0,0,0,0.08);
}

.guide-actions .btn {
  width: 100%;
  justify-content: center;
  font-size: 0.9rem;
  padding: 10px 20px;
  background: var(--green-primary);
  color: var(--white);
  border-radius: var(--radius-sm);
}

.guide-actions .btn:hover {
  background: var(--green-dark);
}

/* Guide Content */
.guide-content {
  max-width: 800px;
}

.guide-header {
  margin-bottom: 48px;
  padding-bottom: 32px;
  border-bottom: 1px solid rgba(0,0,0,0.08);
}

.guide-header h1 {
  font-size: 2.4rem;
  font-weight: 800;
  color: var(--dark);
  margin-bottom: 12px;
}

.guide-header p {
  font-size: 1.1rem;
  color: var(--medium-gray);
}

.guide-section {
  margin-bottom: 64px;
}

.guide-section h2 {
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--green-subtle);
}

.guide-section p {
  font-size: 1rem;
  color: var(--dark-gray);
  line-height: 1.7;
  margin-bottom: 20px;
}

.guide-section ul {
  margin-bottom: 20px;
  padding-left: 24px;
}

.guide-section li {
  margin-bottom: 8px;
  font-size: 0.95rem;
  line-height: 1.6;
}

.guide-screenshots {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
  margin: 24px 0;
}

.guide-screenshot {
  flex: 0 0 auto;
}

.guide-screenshot .phone-frame {
  width: 260px;
  border-radius: 28px;
  overflow: hidden;
  box-shadow: var(--shadow-md);
  border: 5px solid #222;
  background: #222;
}

.guide-screenshot .phone-frame img {
  width: 100%;
  border-radius: 23px;
}

.guide-screenshot figcaption {
  text-align: center;
  margin-top: 10px;
  font-size: 0.85rem;
  color: var(--medium-gray);
  font-weight: 500;
}

/* Guide Responsive */
@media (max-width: 968px) {
  .guide-layout {
    grid-template-columns: 1fr;
  }

  .guide-sidebar {
    position: relative;
    top: 0;
    max-height: none;
    border-bottom: 1px solid rgba(0,0,0,0.08);
    padding-bottom: 24px;
    margin-bottom: 24px;
  }

  .guide-toc {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
  }

  .guide-toc a {
    border-left: none;
    border-bottom: 3px solid transparent;
    padding: 6px 12px;
    font-size: 0.85rem;
  }

  .guide-toc a:hover,
  .guide-toc a.active {
    border-left-color: transparent;
    border-bottom-color: var(--green-primary);
  }
}

@media (max-width: 640px) {
  .guide-screenshots {
    flex-direction: column;
    align-items: center;
  }

  .guide-screenshot .phone-frame {
    width: 220px;
  }

  .guide-header h1 {
    font-size: 1.8rem;
  }
}

/* ================================ */
/* Guide Hero */
/* ================================ */
.guide-hero {
  background: linear-gradient(135deg, var(--green-dark), var(--green-primary));
  color: var(--white);
  padding: 120px 0 60px;
  text-align: center;
}

.guide-hero-badge {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  padding: 6px 16px;
  border: 1px solid rgba(255,255,255,0.3);
  border-radius: 100px;
  margin-bottom: 20px;
  color: rgba(255,255,255,0.9);
}

.guide-hero h1 {
  font-size: 3rem;
  font-weight: 900;
  margin-bottom: 16px;
  letter-spacing: -1px;
}

.guide-hero-subtitle {
  font-size: 1.15rem;
  color: rgba(255,255,255,0.85);
  max-width: 640px;
  margin: 0 auto 32px;
  line-height: 1.7;
}

.guide-hero-stats {
  display: flex;
  justify-content: center;
  gap: 40px;
  margin-bottom: 32px;
}

.guide-hero-stat {
  font-size: 0.95rem;
  color: rgba(255,255,255,0.75);
}

.guide-hero-stat strong {
  color: var(--white);
  font-weight: 800;
  font-size: 1.1rem;
}

.guide-hero-actions {
  display: flex;
  justify-content: center;
  gap: 12px;
}

.btn-white {
  background: var(--white);
  color: var(--green-dark);
  font-weight: 700;
}

.btn-white:hover {
  background: var(--light-gray);
}

.btn-outline-white {
  background: transparent;
  color: var(--white);
  border: 2px solid rgba(255,255,255,0.4);
  font-weight: 600;
}

.btn-outline-white:hover {
  background: rgba(255,255,255,0.1);
  border-color: rgba(255,255,255,0.7);
}

/* Guide Intro Card */
.guide-intro-card {
  background: var(--green-subtle);
  border: 1px solid rgba(76, 175, 80, 0.15);
  border-radius: var(--radius);
  padding: 24px 28px;
  margin-bottom: 48px;
  font-size: 1rem;
  line-height: 1.7;
  color: var(--dark-gray);
}

/* TOC Numbered */
.toc-num {
  display: inline-block;
  font-weight: 800;
  font-size: 0.8rem;
  color: var(--green-primary);
  margin-right: 8px;
  min-width: 20px;
}

/* Footer logo image */
.footer-brand .footer-logo .logo-img {
  width: 60px;
  height: auto;
  border-radius: 0;
  object-fit: contain;
}

/* Guide Hero responsive */
@media (max-width: 640px) {
  .guide-hero { padding: 100px 0 40px; }
  .guide-hero h1 { font-size: 2.2rem; }
  .guide-hero-stats { flex-direction: column; gap: 12px; }
  .guide-hero-actions { flex-direction: column; align-items: center; }
}

/* ================================ */
/* Print Styles (for guide) */
/* ================================ */
@media print {
  .navbar,
  .guide-sidebar,
  .guide-actions,
  .guide-hero,
  .footer {
    display: none !important;
  }

  .guide-layout {
    grid-template-columns: 1fr;
    padding-top: 0;
  }

  .guide-section {
    break-inside: avoid;
  }

  .guide-screenshot .phone-frame {
    border: 1px solid #ccc;
    box-shadow: none;
  }

  body {
    font-size: 12pt;
    color: #000;
  }

  a {
    color: #000;
    text-decoration: underline;
  }
}