/* === CSS Custom Properties (DESIGN.md Tokens) === */
:root {
  /* Colors */
  --color-primary: #0a0a0a;
  --color-on-primary: #ffffff;
  --color-primary-soft: #181e25;
  --color-brand-coral: #ff5530;
  --color-brand-magenta: #ea5ec1;
  --color-brand-blue: #1456f0;
  --color-brand-blue-mid: #3b82f6;
  --color-brand-blue-deep: #1d4ed8;
  --color-brand-blue-700: #17437d;
  --color-brand-cyan: #3daeff;
  --color-brand-blue-200: #bfdbfe;
  --color-brand-purple: #a855f7;
  --color-canvas: #ffffff;
  --color-surface: #f7f8fa;
  --color-surface-soft: #f2f3f5;
  --color-hairline: #e5e7eb;
  --color-hairline-soft: #eaecf0;
  --color-ink: #0a0a0a;
  --color-ink-strong: #000000;
  --color-charcoal: #222222;
  --color-slate: #45515e;
  --color-steel: #5f5f5f;
  --color-stone: #8e8e93;
  --color-muted: #a8aab2;
  --color-success-bg: #e8ffea;
  --color-success-text: #1ba673;
  --color-on-dark: #ffffff;
  --color-footer-bg: #0a0a0a;

  /* Typography */
  --font-family: 'DM Sans', 'Inter', 'Helvetica Neue', Helvetica, Arial, sans-serif;
  --font-size-hero-display: 80px;
  --font-size-display-lg: 56px;
  --font-size-heading-lg: 40px;
  --font-size-heading-md: 32px;
  --font-size-heading-sm: 24px;
  --font-size-card-title: 20px;
  --font-size-subtitle: 18px;
  --font-size-body-md: 16px;
  --font-size-body-sm: 14px;
  --font-size-caption: 13px;
  --font-size-micro: 12px;
  --font-size-button-md: 14px;

  /* Border Radius */
  --rounded-xs: 4px;
  --rounded-sm: 6px;
  --rounded-md: 8px;
  --rounded-lg: 12px;
  --rounded-xl: 16px;
  --rounded-xxl: 20px;
  --rounded-xxxl: 24px;
  --rounded-hero: 32px;
  --rounded-full: 9999px;

  /* Spacing */
  --spacing-xxs: 4px;
  --spacing-xs: 8px;
  --spacing-sm: 12px;
  --spacing-md: 16px;
  --spacing-lg: 20px;
  --spacing-xl: 24px;
  --spacing-xxl: 32px;
  --spacing-xxxl: 40px;
  --spacing-section-sm: 48px;
  --spacing-section: 64px;
  --spacing-section-lg: 80px;
  --spacing-hero: 96px;

  /* Elevation */
  --shadow-subtle: rgba(0, 0, 0, 0.04) 0px 1px 2px 0px;
  --shadow-card: rgba(0, 0, 0, 0.08) 0px 4px 6px 0px;
  --shadow-atmospheric: rgba(0, 0, 0, 0.08) 0px 0px 22px 0px;
  --shadow-modal: rgba(36, 36, 36, 0.08) 0px 12px 16px -4px;

  /* Navbar */
  --navbar-height: 64px;
}

/* === Dark Mode === */
[data-theme="dark"] {
  --color-canvas: #0a0a0a;
  --color-surface: #141414;
  --color-surface-soft: #1a1a1a;
  --color-hairline: #2a2a2a;
  --color-hairline-soft: #222222;
  --color-ink: #f0f0f0;
  --color-ink-strong: #ffffff;
  --color-charcoal: #d4d4d4;
  --color-slate: #9ca3af;
  --color-steel: #9ca3af;
  --color-stone: #6b7280;
  --color-muted: #6b7280;

  --shadow-subtle: rgba(255, 255, 255, 0.04) 0px 1px 2px 0px;
  --shadow-card: rgba(255, 255, 255, 0.06) 0px 4px 6px 0px;
  --shadow-atmospheric: rgba(255, 255, 255, 0.06) 0px 0px 22px 0px;
  --shadow-modal: rgba(255, 255, 255, 0.08) 0px 12px 16px -4px;
}

[data-theme="dark"] body {
  transition: background-color 200ms ease, color 200ms ease;
}

[data-theme="dark"] .btn-dark {
  background-color: var(--color-on-dark);
  color: var(--color-primary);
  border: none;
}
[data-theme="dark"] .btn-dark:hover,
[data-theme="dark"] .btn-dark:active {
  background-color: #d4d4d4 !important;
  color: var(--color-primary) !important;
}

[data-theme="dark"] .btn-outline-dark {
  color: var(--color-on-dark);
  border: 1px solid var(--color-on-dark);
  background-color: transparent;
}
[data-theme="dark"] .btn-outline-dark:hover,
[data-theme="dark"] .btn-outline-dark:active {
  background-color: var(--color-on-dark) !important;
  color: var(--color-primary) !important;
}

[data-theme="dark"] .footer-section {
  border-top: 1px solid var(--color-hairline);
}

[data-theme="dark"] .theme-toggle-btn {
  background-color: var(--color-canvas);
  color: var(--color-ink);
  border: 1px solid var(--color-hairline);
}

[data-theme="dark"] .promo-banner {
  border-bottom: 1px solid var(--color-hairline);
}

/* === Theme Toggle Button (button-icon-circular) === */
.theme-toggle-btn {
  width: 36px;
  height: 36px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-canvas);
  color: var(--color-ink);
  border: 1px solid var(--color-hairline);
  border-radius: var(--rounded-full);
  font-size: 16px;
  cursor: pointer;
  padding: 0;
  transition: all 150ms ease;
  flex-shrink: 0;
}
.theme-toggle-btn:hover {
  background-color: var(--color-surface);
}

@media (max-width: 767.98px) {
  .theme-toggle-btn {
    width: 44px;
    height: 44px;
    font-size: 18px;
  }
}

/* === Reset & Base === */
* {
  box-sizing: border-box;
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size-body-md);
  font-weight: 400;
  line-height: 1.50;
  color: var(--color-charcoal);
  background-color: var(--color-canvas);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-family);
  font-weight: 600;
  color: var(--color-ink);
}

p {
  font-size: var(--font-size-body-md);
  line-height: 1.50;
  color: var(--color-charcoal);
}

a {
  color: var(--color-ink);
  text-decoration: none;
}

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

section {
  scroll-margin-top: var(--navbar-height);
}

/* Section rhythm: 80px padding-top, 80px padding-bottom */
section[id] {
  padding-top: var(--spacing-section-lg);
  padding-bottom: var(--spacing-section-lg);
}

/* Section background alternation */
.bg-surface {
  background-color: var(--color-surface);
}

/* === Promo Banner === */
.promo-banner {
  background-color: var(--color-primary);
  color: var(--color-on-primary);
  font-size: var(--font-size-body-sm);
  font-weight: 500;
  line-height: 1.50;
  padding: var(--spacing-sm) var(--spacing-lg);
  position: relative;
  z-index: 1030;
}
.promo-banner .container {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-xs);
}
.promo-banner-link {
  color: var(--color-brand-coral);
  font-weight: 600;
  margin-left: 4px;
  text-decoration: none;
}
.promo-banner-link:hover {
  text-decoration: underline;
}
.promo-banner-close {
  background: none;
  border: none;
  color: var(--color-muted);
  cursor: pointer;
  font-size: 18px;
  padding: 0 0 0 12px;
  line-height: 1;
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
}
.promo-banner-close:hover {
  color: var(--color-on-primary);
}

/* === Navbar === */
#navbar {
  background-color: var(--color-canvas);
  border-bottom: 1px solid var(--color-hairline-soft);
  height: var(--navbar-height);
  padding: 0;
  z-index: 1020;
}
#navbar .navbar-brand {
  font-family: var(--font-family);
  font-size: var(--font-size-heading-sm);
  font-weight: 600;
  color: var(--color-ink);
  letter-spacing: -0.5px;
}
#navbar .nav-link {
  font-family: var(--font-family);
  font-size: var(--font-size-body-sm);
  font-weight: 400;
  color: var(--color-charcoal);
  padding: var(--spacing-xs) var(--spacing-md) !important;
  transition: color 150ms ease;
}
#navbar .nav-link:hover,
#navbar .nav-link.active {
  color: var(--color-ink);
  font-weight: 500;
}
#navbar .navbar-toggler {
  border: none;
  padding: var(--spacing-xs);
  color: var(--color-ink);
  font-size: 24px;
}
#navbar .navbar-toggler:focus {
  box-shadow: none;
}
#navbar .navbar-actions {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
}

@media (max-width: 991.98px) {
  #navbar .navbar-collapse {
    background-color: var(--color-canvas);
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--color-hairline);
  }
  #navbar .navbar-actions {
    margin-top: var(--spacing-sm);
  }
}

/* === Buttons === */

/* Override Bootstrap buttons to match DESIGN.md */
.btn {
  font-family: var(--font-family);
  font-size: var(--font-size-button-md);
  font-weight: 600;
  line-height: 1.40;
  padding: 11px 24px;
  border-radius: var(--rounded-full);
  transition: all 150ms ease;
}

.btn-primary,
.btn-dark {
  background-color: var(--color-primary);
  color: var(--color-on-primary);
  border: none;
}
.btn-primary:hover,
.btn-primary:active,
.btn-dark:hover,
.btn-dark:active {
  background-color: var(--color-charcoal) !important;
  color: var(--color-on-primary) !important;
}

.btn-outline-dark {
  color: var(--color-ink);
  border: 1px solid var(--color-ink);
  background-color: transparent;
}
.btn-outline-dark:hover,
.btn-outline-dark:active {
  background-color: var(--color-ink) !important;
  color: var(--color-on-primary) !important;
}

.btn-outline-light {
  color: var(--color-on-dark);
  border: 1px solid var(--color-on-dark);
  background-color: transparent;
}
.btn-outline-light:hover,
.btn-outline-light:active {
  background-color: var(--color-on-dark) !important;
  color: var(--color-ink) !important;
}

.btn-sm {
  padding: 8px 18px;
  font-size: 13px;
}

.btn-lg {
  padding: 14px 32px;
  font-size: 15px;
}

/* === Badges === */
.badge-custom {
  display: inline-block;
  font-family: var(--font-family);
  font-size: var(--font-size-caption);
  font-weight: 600;
  line-height: 1.50;
  padding: 4px 10px;
  border-radius: var(--rounded-full);
}

.badge-new {
  background-color: var(--color-brand-coral);
  color: var(--color-on-dark);
}

.badge-beta {
  background-color: var(--color-brand-blue-200);
  color: var(--color-brand-blue-deep);
}

.badge-success {
  background-color: var(--color-success-bg);
  color: var(--color-success-text);
}

/* === Form Inputs === */
.form-control {
  font-family: var(--font-family);
  font-size: var(--font-size-body-md);
  color: var(--color-ink);
  background-color: var(--color-canvas);
  border: 1px solid var(--color-hairline);
  border-radius: var(--rounded-md);
  padding: var(--spacing-sm) var(--spacing-md);
  height: 40px;
}
.form-control:focus {
  border-color: var(--color-brand-blue-deep);
  border-width: 2px;
  box-shadow: none;
}
textarea.form-control {
  height: auto;
  min-height: 120px;
}

/* === Card Base === */
.card-base {
  background-color: var(--color-canvas);
  border: 1px solid var(--color-hairline);
  border-radius: var(--rounded-xl);
  padding: var(--spacing-xl);
}

.card-feature {
  background-color: var(--color-surface);
  border: none;
  border-radius: var(--rounded-xl);
  padding: var(--spacing-xxl);
}

/* === Section Title === */
.section-title {
  margin-bottom: var(--spacing-section);
}
.section-title h2 {
  font-size: var(--font-size-heading-lg);
  font-weight: 600;
  letter-spacing: -1px;
  line-height: 1.20;
  color: var(--color-ink);
  margin-bottom: var(--spacing-md);
}
.section-title p {
  font-size: var(--font-size-subtitle);
  font-weight: 500;
  line-height: 1.50;
  color: var(--color-steel);
  max-width: 600px;
}
.section-title.text-center p {
  margin-left: auto;
  margin-right: auto;
}

/* === About Section === */
.about-heading {
  font-size: var(--font-size-heading-lg);
  font-weight: 600;
  letter-spacing: -1px;
  line-height: 1.20;
  color: var(--color-ink);
  margin-bottom: var(--spacing-lg);
}
.about-text {
  font-size: var(--font-size-body-md);
  font-weight: 400;
  line-height: 1.50;
  color: var(--color-charcoal);
  margin-bottom: var(--spacing-md);
}
.value-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-canvas);
  border-radius: var(--rounded-lg);
  font-size: 22px;
  color: var(--color-brand-blue);
}
.card-feature h4 {
  font-size: var(--font-size-card-title);
  font-weight: 600;
  line-height: 1.40;
  color: var(--color-ink);
  margin-bottom: var(--spacing-xs);
}
.card-feature p {
  font-size: var(--font-size-body-sm);
  font-weight: 400;
  line-height: 1.50;
  color: var(--color-steel);
  margin-bottom: 0;
}

.about-image-wrap {
  position: relative;
}
.about-main-image {
  border-radius: var(--rounded-xxl);
  width: 100%;
  height: auto;
  min-height: 400px;
  background-color: var(--color-surface);
  object-fit: cover;
}
.about-floating-card {
  position: absolute;
  bottom: var(--spacing-xl);
  left: var(--spacing-xl);
  background-color: var(--color-canvas);
  border-radius: var(--rounded-lg);
  padding: var(--spacing-md) var(--spacing-lg);
  box-shadow: var(--shadow-card);
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-size: var(--font-size-body-sm);
}
.about-floating-card i {
  font-size: 24px;
  color: var(--color-brand-coral);
}
.about-floating-card strong {
  display: block;
  font-size: var(--font-size-body-sm);
  font-weight: 600;
  color: var(--color-ink);
  line-height: 1.3;
}
.about-floating-card span {
  display: block;
  font-size: var(--font-size-caption);
  color: var(--color-steel);
}

@media (max-width: 991.98px) {
  .about-image-wrap {
    margin-top: var(--spacing-xxl);
  }
}

/* === Hero Section === */
.hero-section {
  padding-top: var(--spacing-hero);
  padding-bottom: var(--spacing-hero);
  background-color: var(--color-canvas);
}
.hero-content {
  max-width: 780px;
  margin: 0 auto;
}
.hero-title {
  font-size: var(--font-size-hero-display);
  font-weight: 600;
  line-height: 1.10;
  letter-spacing: -2px;
  color: var(--color-ink);
  margin-bottom: var(--spacing-xl);
}
.hero-subtitle {
  font-size: var(--font-size-subtitle);
  font-weight: 500;
  line-height: 1.50;
  color: var(--color-steel);
  margin-bottom: var(--spacing-xxl);
}
.hero-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-section);
}
.hero-stats {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-xxxl);
}
.hero-stat-item {
  text-align: center;
}
.hero-stat-number {
  display: block;
  font-size: var(--font-size-heading-lg);
  font-weight: 600;
  line-height: 1.20;
  letter-spacing: -1px;
  color: var(--color-ink);
  margin-bottom: var(--spacing-xxs);
}
.hero-stat-label {
  display: block;
  font-size: var(--font-size-body-sm);
  font-weight: 400;
  line-height: 1.50;
  color: var(--color-steel);
}

/* Hero responsive */
@media (max-width: 1023.98px) {
  .hero-title {
    font-size: 56px;
    letter-spacing: -1.5px;
  }
  .hero-stats {
    gap: var(--spacing-xxl);
  }
}
@media (max-width: 767.98px) {
  .hero-title {
    font-size: 40px;
    letter-spacing: -1px;
  }
  .hero-stats {
    flex-direction: column;
    gap: var(--spacing-xl);
  }
}
@media (max-width: 479.98px) {
  .hero-title {
    font-size: 32px;
    letter-spacing: -0.5px;
  }
  .hero-section {
    padding-top: var(--spacing-section);
    padding-bottom: var(--spacing-section);
  }
  .hero-actions {
    flex-direction: column;
    width: 100%;
  }
  .hero-actions .btn {
    width: 100%;
  }
}

/* === Services Grid (Vibrant Product Cards) === */
.services-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-xl);
}

.service-card {
  position: relative;
  border-radius: var(--rounded-hero);
  padding: var(--spacing-xxl);
  color: var(--color-on-dark);
  display: flex;
  flex-direction: column;
  min-height: 340px;
}
.service-card .badge-custom {
  position: absolute;
  top: var(--spacing-xl);
  right: var(--spacing-xl);
}
.service-card-coral {
  background: linear-gradient(135deg, var(--color-brand-coral), #ff7750);
}
.service-card-magenta {
  background: linear-gradient(135deg, var(--color-brand-magenta), #f070d0);
}
.service-card-blue {
  background: linear-gradient(135deg, var(--color-brand-blue), #3875f5);
}
.service-card-purple {
  background: linear-gradient(135deg, var(--color-brand-purple), #b870f9);
}
.service-card-title {
  font-size: var(--font-size-heading-sm);
  font-weight: 600;
  line-height: 1.30;
  color: inherit;
  margin-top: auto;
  margin-bottom: var(--spacing-sm);
}
.service-card-desc {
  font-size: var(--font-size-body-sm);
  font-weight: 400;
  line-height: 1.50;
  color: rgba(255,255,255,0.80);
  margin-bottom: var(--spacing-lg);
}
.service-card-link {
  font-size: var(--font-size-body-sm);
  font-weight: 500;
  color: var(--color-on-dark);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xxs);
  margin-top: auto;
}
.service-card-link:hover {
  text-decoration: underline;
}
.service-card-link i {
  font-size: 14px;
  transition: transform 150ms ease;
}
.service-card-link:hover i {
  transform: translateX(3px);
}

/* Responsive: 4-col → 2-col on tablet → horizontal scroll on mobile */
@media (max-width: 1023.98px) {
  .services-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (max-width: 767.98px) {
  .services-grid {
    display: flex;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    gap: var(--spacing-md);
    padding-bottom: var(--spacing-md);
  }
  .service-card {
    min-width: 280px;
    scroll-snap-align: start;
    flex-shrink: 0;
  }
}

/* === AI Product Tiles === */
.ai-product-tile {
  background-color: var(--color-canvas);
  border: 1px solid var(--color-hairline);
  border-radius: var(--rounded-xxxl);
  padding: var(--spacing-xl);
  height: 100%;
  transition: box-shadow 150ms ease;
}
.ai-product-tile:hover {
  box-shadow: var(--shadow-atmospheric);
}
.tile-icon-wrap {
  width: 64px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-surface);
  border-radius: var(--rounded-xl);
  font-size: 28px;
  color: var(--color-brand-blue);
  margin-bottom: var(--spacing-lg);
}
.tile-title {
  font-size: var(--font-size-card-title);
  font-weight: 600;
  line-height: 1.40;
  color: var(--color-ink);
  margin-bottom: var(--spacing-sm);
}
.tile-desc {
  font-size: var(--font-size-body-sm);
  font-weight: 400;
  line-height: 1.50;
  color: var(--color-steel);
  margin-bottom: 0;
}

/* === Blog Section === */
.post-item {
  background-color: var(--color-canvas);
  border: 1px solid var(--color-hairline);
  border-radius: var(--rounded-xl);
  overflow: hidden;
  height: 100%;
  transition: box-shadow 150ms ease;
}
.post-item:hover {
  box-shadow: var(--shadow-card);
}
.post-img {
  position: relative;
  overflow: hidden;
  height: 220px;
}
.post-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  min-height: 220px;
  background-color: var(--color-surface);
}
.post-date {
  position: absolute;
  top: var(--spacing-md);
  left: var(--spacing-md);
  background-color: var(--color-brand-coral);
  color: var(--color-on-dark);
  font-size: var(--font-size-caption);
  font-weight: 600;
  padding: 4px 10px;
  border-radius: var(--rounded-full);
}
.post-content {
  padding: var(--spacing-xl);
  display: flex;
  flex-direction: column;
  flex: 1;
}
.post-title {
  font-size: var(--font-size-card-title);
  font-weight: 600;
  line-height: 1.40;
  color: var(--color-ink);
  margin-bottom: var(--spacing-sm);
}
.post-meta {
  font-size: var(--font-size-body-sm);
  font-weight: 400;
  color: var(--color-steel);
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  margin-bottom: var(--spacing-md);
}
.post-meta i {
  font-size: 14px;
  margin-right: 2px;
}
.post-meta .separator {
  width: 4px;
  height: 4px;
  border-radius: var(--rounded-full);
  background-color: var(--color-hairline);
}
.post-readmore {
  font-size: var(--font-size-body-sm);
  font-weight: 500;
  color: var(--color-ink);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xxs);
  margin-top: auto;
}
.post-readmore:hover {
  text-decoration: underline;
}
.post-readmore i {
  font-size: 12px;
  transition: transform 150ms ease;
}
.post-readmore:hover i {
  transform: translateX(3px);
}

/* === Testimonials Section === */
.testimonials-swiper {
  padding-bottom: 48px;
}
.testimonial-card {
  background-color: var(--color-canvas);
  border: 1px solid var(--color-hairline);
  border-radius: var(--rounded-xl);
  padding: var(--spacing-xxl);
  margin: 0 auto;
  max-width: 640px;
}
.testimonial-stars {
  color: var(--color-brand-coral);
  font-size: var(--font-size-body-md);
  margin-bottom: var(--spacing-md);
}
.testimonial-text {
  font-size: var(--font-size-body-md);
  font-weight: 400;
  line-height: 1.50;
  color: var(--color-charcoal);
  margin-bottom: var(--spacing-xl);
  font-style: italic;
}
.testimonial-author {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}
.testimonial-avatar {
  width: 48px;
  height: 48px;
  border-radius: var(--rounded-full);
  object-fit: cover;
  background-color: var(--color-surface);
}
.testimonial-author strong {
  display: block;
  font-size: var(--font-size-body-sm);
  font-weight: 600;
  color: var(--color-ink);
  line-height: 1.3;
}
.testimonial-author span {
  display: block;
  font-size: var(--font-size-caption);
  font-weight: 400;
  color: var(--color-steel);
}
.swiper-pagination-bullet {
  background-color: var(--color-hairline);
  opacity: 1;
}
.swiper-pagination-bullet-active {
  background-color: var(--color-primary);
}

/* === Stats Section === */
.stats-section {
  background-color: var(--color-canvas);
}
.stat-card {
  padding: var(--spacing-xl);
}
.stat-card .stat-number {
  font-size: var(--font-size-heading-lg);
  font-weight: 600;
  line-height: 1.20;
  letter-spacing: -1px;
  color: var(--color-ink);
  margin-bottom: var(--spacing-xs);
}
.stat-card .stat-label {
  font-size: var(--font-size-body-sm);
  font-weight: 400;
  line-height: 1.50;
  color: var(--color-steel);
}

/* === CTA Section (promo-cta-card) === */
.cta-section {
  background-color: var(--color-canvas);
}
.cta-card {
  background: linear-gradient(135deg, var(--color-brand-coral), #ff7750);
  border-radius: var(--rounded-hero);
  padding: var(--spacing-section);
  color: var(--color-on-dark);
}
.cta-title {
  font-size: var(--font-size-heading-md);
  font-weight: 600;
  line-height: 1.25;
  letter-spacing: -0.5px;
  color: inherit;
  margin-bottom: var(--spacing-xs);
}
.cta-text {
  font-size: var(--font-size-body-md);
  font-weight: 400;
  line-height: 1.50;
  color: rgba(255,255,255,0.85);
  margin-bottom: 0;
}
.cta-card .btn-outline-light {
  color: var(--color-on-dark);
  border-color: var(--color-on-dark);
}
.cta-card .btn-outline-light:hover {
  background-color: var(--color-on-dark) !important;
  color: var(--color-brand-coral) !important;
}

/* === Contact Section === */
.contact-info-item {
  display: flex;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-xl);
}
.contact-info-item i {
  font-size: 24px;
  color: var(--color-brand-blue);
  flex-shrink: 0;
  margin-top: 4px;
}
.contact-info-item strong {
  display: block;
  font-size: var(--font-size-body-md);
  font-weight: 600;
  color: var(--color-ink);
  margin-bottom: var(--spacing-xxs);
}
.contact-info-item p {
  font-size: var(--font-size-body-sm);
  font-weight: 400;
  color: var(--color-steel);
  margin-bottom: 0;
  line-height: 1.50;
}

.contact-form label {
  font-size: var(--font-size-body-sm);
  font-weight: 500;
  color: var(--color-charcoal);
  margin-bottom: var(--spacing-xxs);
}

/* === Footer === */
.footer-section {
  background-color: var(--color-footer-bg);
  color: var(--color-on-dark);
  padding: var(--spacing-section) 0 0;
}
.footer-brand {
  font-size: var(--font-size-heading-sm);
  font-weight: 600;
  color: var(--color-on-dark);
  text-decoration: none;
  display: block;
  margin-bottom: var(--spacing-xxs);
}
.footer-tagline {
  font-size: var(--font-size-body-sm);
  font-weight: 400;
  color: var(--color-muted);
  margin-bottom: var(--spacing-md);
}
.footer-desc {
  font-size: var(--font-size-body-sm);
  font-weight: 400;
  color: var(--color-muted);
  line-height: 1.50;
  margin-bottom: var(--spacing-xl);
}
.footer-social {
  display: flex;
  gap: var(--spacing-md);
}
.footer-social a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border: 1px solid var(--color-hairline);
  border-radius: var(--rounded-full);
  color: var(--color-on-dark);
  font-size: 16px;
  text-decoration: none;
  transition: border-color 150ms ease;
}
.footer-social a:hover {
  border-color: var(--color-on-dark);
}
.footer-section h4 {
  font-size: var(--font-size-body-sm);
  font-weight: 500;
  color: var(--color-on-dark);
  margin-bottom: var(--spacing-md);
}
.footer-section ul {
  list-style: none;
  padding: 0;
  margin: 0;
}
.footer-section ul li {
  margin-bottom: var(--spacing-xxs);
}
.footer-section ul li a {
  font-size: var(--font-size-body-sm);
  font-weight: 400;
  color: var(--color-muted);
  text-decoration: none;
  padding: var(--spacing-xxs) 0;
  display: inline-block;
  transition: color 150ms ease;
}
.footer-section ul li a:hover {
  color: var(--color-on-dark);
}
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  margin-top: var(--spacing-section);
  padding: var(--spacing-xl) 0;
  text-align: center;
}
.footer-bottom p {
  font-size: var(--font-size-body-sm);
  font-weight: 400;
  color: var(--color-muted);
  margin-bottom: 0;
}

@media (max-width: 767.98px) {
  .cta-card {
    text-align: center;
    padding: var(--spacing-xxl);
  }
  .cta-card .col-lg-4 {
    text-align: center !important;
  }
}

/* === Page Header (Inner Pages) === */
.page-header {
  background-color: var(--color-surface);
  padding: var(--spacing-xxxl) 0;
  border-bottom: 1px solid var(--color-hairline-soft);
}
.page-header h1 {
  font-size: var(--font-size-heading-lg);
  font-weight: 600;
  letter-spacing: -1px;
  line-height: 1.20;
  color: var(--color-ink);
  margin-bottom: var(--spacing-xs);
}
.page-header .breadcrumb {
  margin-bottom: 0;
  padding: 0;
  background: none;
}
.page-header .breadcrumb-item {
  font-size: var(--font-size-body-sm);
  font-weight: 400;
  color: var(--color-steel);
}
.page-header .breadcrumb-item a {
  color: var(--color-steel);
  text-decoration: none;
}
.page-header .breadcrumb-item a:hover {
  color: var(--color-ink);
}
.page-header .breadcrumb-item.active {
  color: var(--color-ink);
  font-weight: 500;
}
.page-header .breadcrumb-item + .breadcrumb-item::before {
  color: var(--color-stone);
}

/* === Blog List Article === */
.blog-list-article {
  background-color: var(--color-canvas);
  border: 1px solid var(--color-hairline);
  border-radius: var(--rounded-xl);
  overflow: hidden;
  margin-bottom: var(--spacing-xxl);
  transition: box-shadow 150ms ease;
}
.blog-list-article:hover {
  box-shadow: var(--shadow-card);
}
.blog-list-article .post-img {
  height: 280px;
}
.blog-list-article .post-content {
  padding: var(--spacing-xxl);
}
.blog-list-article .title {
  font-size: var(--font-size-heading-sm);
  font-weight: 600;
  line-height: 1.30;
  color: var(--color-ink);
  margin-bottom: var(--spacing-sm);
}
.blog-list-article .title a {
  color: var(--color-ink);
  text-decoration: none;
}
.blog-list-article .title a:hover {
  text-decoration: underline;
}
.meta-top {
  font-size: var(--font-size-body-sm);
  font-weight: 400;
  color: var(--color-steel);
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-md);
}
.meta-top i {
  font-size: 14px;
  margin-right: 3px;
}
.meta-top .separator {
  width: 4px;
  height: 4px;
  border-radius: var(--rounded-full);
  background-color: var(--color-hairline);
}
.blog-list-article .content-excerpt {
  font-size: var(--font-size-body-md);
  font-weight: 400;
  line-height: 1.50;
  color: var(--color-charcoal);
  margin-bottom: var(--spacing-lg);
}
.read-more {
  font-size: var(--font-size-body-sm);
  font-weight: 500;
  color: var(--color-ink);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xxs);
}
.read-more:hover {
  text-decoration: underline;
}
.read-more i {
  font-size: 12px;
  transition: transform 150ms ease;
}
.read-more:hover i {
  transform: translateX(3px);
}

/* === Sidebar === */
.sidebar .widget-item {
  background-color: var(--color-canvas);
  border: 1px solid var(--color-hairline);
  border-radius: var(--rounded-xl);
  padding: var(--spacing-xl);
  margin-bottom: var(--spacing-xxl);
}
.widget-title {
  font-size: var(--font-size-card-title);
  font-weight: 600;
  line-height: 1.40;
  color: var(--color-ink);
  margin-bottom: var(--spacing-lg);
  padding-bottom: var(--spacing-sm);
  border-bottom: 2px solid var(--color-primary);
}

/* Search Widget */
.search-widget .search-form {
  position: relative;
}
.search-widget .search-form input {
  font-family: var(--font-family);
  font-size: var(--font-size-body-sm);
  color: var(--color-ink);
  background-color: var(--color-surface);
  border: 1px solid var(--color-hairline);
  border-radius: var(--rounded-md);
  padding: var(--spacing-xs) var(--spacing-md);
  padding-right: 40px;
  height: 40px;
  width: 100%;
}
.search-widget .search-form input:focus {
  outline: none;
  border-color: var(--color-brand-blue-deep);
  border-width: 2px;
}
.search-widget .search-form button {
  position: absolute;
  right: 4px;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  color: var(--color-steel);
  font-size: 16px;
  cursor: pointer;
  padding: var(--spacing-xs);
}
.search-widget .search-form button:hover {
  color: var(--color-ink);
}

/* Categories Widget */
.categories-widget ul {
  list-style: none;
  padding: 0;
  margin: 0;
}
.categories-widget ul li {
  border-bottom: 1px solid var(--color-hairline-soft);
}
.categories-widget ul li:last-child {
  border-bottom: none;
}
.categories-widget ul li a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: var(--font-size-body-sm);
  font-weight: 400;
  color: var(--color-charcoal);
  text-decoration: none;
  padding: var(--spacing-sm) 0;
  transition: color 150ms ease;
}
.categories-widget ul li a:hover {
  color: var(--color-brand-blue);
}
.categories-widget ul li a span {
  font-size: var(--font-size-caption);
  color: var(--color-muted);
  background-color: var(--color-surface);
  padding: 2px 8px;
  border-radius: var(--rounded-full);
}

/* Recent Posts Widget */
.recent-posts-widget .recent-post-item {
  display: flex;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-md);
}
.recent-posts-widget .recent-post-item:last-child {
  margin-bottom: 0;
}
.recent-posts-widget .recent-post-img {
  width: 72px;
  height: 72px;
  border-radius: var(--rounded-md);
  object-fit: cover;
  flex-shrink: 0;
  background-color: var(--color-surface);
}
.recent-posts-widget .recent-post-info {
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.recent-posts-widget .recent-post-info a {
  font-size: var(--font-size-body-sm);
  font-weight: 500;
  color: var(--color-ink);
  text-decoration: none;
  line-height: 1.40;
  display: block;
  margin-bottom: 2px;
}
.recent-posts-widget .recent-post-info a:hover {
  text-decoration: underline;
}
.recent-posts-widget .recent-post-date {
  font-size: var(--font-size-caption);
  font-weight: 400;
  color: var(--color-steel);
}

/* Tags Widget */
.tags-widget .tags-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-xs);
}
.tags-widget .tags-list a {
  display: inline-block;
  font-size: var(--font-size-caption);
  font-weight: 400;
  color: var(--color-charcoal);
  text-decoration: none;
  background-color: var(--color-surface);
  border: 1px solid var(--color-hairline);
  border-radius: var(--rounded-full);
  padding: 4px 12px;
  transition: all 150ms ease;
}
.tags-widget .tags-list a:hover {
  background-color: var(--color-primary);
  color: var(--color-on-primary);
  border-color: var(--color-primary);
}

/* === Blog Pagination === */
.blog-pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-xs);
  margin-top: var(--spacing-xxl);
}
.blog-pagination a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  font-size: var(--font-size-body-sm);
  font-weight: 500;
  color: var(--color-charcoal);
  text-decoration: none;
  border: 1px solid var(--color-hairline);
  border-radius: var(--rounded-full);
  transition: all 150ms ease;
}
.blog-pagination a:hover {
  background-color: var(--color-primary);
  color: var(--color-on-primary);
  border-color: var(--color-primary);
}
.blog-pagination a.active {
  background-color: var(--color-primary);
  color: var(--color-on-primary);
  border-color: var(--color-primary);
}
.blog-pagination a.prev,
.blog-pagination a.next {
  width: auto;
  padding: 0 var(--spacing-md);
  font-size: var(--font-size-body-sm);
}
.blog-pagination a.prev i,
.blog-pagination a.next i {
  font-size: 14px;
}
.blog-pagination a.disabled {
  color: var(--color-muted);
  pointer-events: none;
  border-color: var(--color-hairline-soft);
}

.blog-pagination ul li {
  list-style-type: none;
}

/* === Smooth Scroll === */
html {
  scroll-behavior: smooth;
}

/* === Focus Visible === */
:focus-visible {
  outline: 2px solid var(--color-brand-blue-deep);
  outline-offset: 2px;
}

/* === Section Background Alternation === */
#about,
#features,
#blog,
#cta,
#contact {
  background-color: var(--color-canvas);
}
#services,
#stats,
#testimonials {
  background-color: var(--color-canvas);
}
#about.bg-surface,
#features.bg-surface,
#blog.bg-surface {
  background-color: var(--color-surface);
}

/* === Responsive Utility === */
@media (max-width: 479.98px) {
  .btn-lg {
    padding: 12px 24px;
    font-size: var(--font-size-button-md);
  }
}

/* === Page Header (inner pages) === */
.page-header {
  background-color: var(--color-surface);
  padding: var(--spacing-section) 0;
  position: relative;
}
.page-header h1 {
  font-size: var(--font-size-heading-lg);
  font-weight: 600;
  line-height: 1.20;
  letter-spacing: -1px;
  color: var(--color-ink);
  margin-bottom: var(--spacing-xs);
}

/* Breadcrumbs */
.breadcrumbs {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  font-size: var(--font-size-body-sm);
  font-weight: 400;
  color: var(--color-steel);
  list-style: none;
  padding: 0;
  margin: 0;
}
.breadcrumbs li {
  display: inline-flex;
  align-items: center;
}
.breadcrumbs li + li::before {
  content: "/";
  margin-right: var(--spacing-xs);
  color: var(--color-muted);
}
.breadcrumbs a {
  color: var(--color-steel);
  text-decoration: none;
}
.breadcrumbs a:hover {
  color: var(--color-ink);
}
.breadcrumbs .active {
  color: var(--color-ink);
  font-weight: 500;
}

/* === Inner Page Content === */
.inner-page-content {
  padding: var(--spacing-section) 0;
}
.inner-page-content .content h2 {
  font-size: var(--font-size-heading-md);
  font-weight: 600;
  line-height: 1.25;
  letter-spacing: -0.5px;
  color: var(--color-ink);
  margin-bottom: var(--spacing-md);
  margin-top: var(--spacing-section);
}
.inner-page-content .content h2:first-child {
  margin-top: 0;
}
.inner-page-content .content h3 {
  font-size: var(--font-size-heading-sm);
  font-weight: 600;
  line-height: 1.30;
  color: var(--color-ink);
  margin-bottom: var(--spacing-sm);
  margin-top: var(--spacing-xl);
}
.inner-page-content .content p {
  font-size: var(--font-size-body-md);
  font-weight: 400;
  line-height: 1.50;
  color: var(--color-charcoal);
  margin-bottom: var(--spacing-md);
}
.inner-page-content .content ul,
.inner-page-content .content ol {
  font-size: var(--font-size-body-md);
  font-weight: 400;
  line-height: 1.50;
  color: var(--color-charcoal);
  margin-bottom: var(--spacing-md);
  padding-left: var(--spacing-xl);
}
.inner-page-content .content li {
  margin-bottom: var(--spacing-xs);
}
.inner-page-content .content blockquote {
  font-size: var(--font-size-body-md);
  font-weight: 400;
  line-height: 1.50;
  color: var(--color-slate);
  border-left: 3px solid var(--color-brand-coral);
  padding-left: var(--spacing-lg);
  margin: var(--spacing-xl) 0;
}

/* Content Max Width */
.content-max-width {
  max-width: 780px;
  margin: 0 auto;
}

/* === Blog Detail Section === */
.blog-detail-section {
  padding-top: var(--spacing-section-lg);
  padding-bottom: var(--spacing-section-lg);
}

/* === Blog Detail Article === */
.blog-detail-article .post-img {
  border-radius: var(--rounded-xxl);
  overflow: hidden;
  margin-bottom: var(--spacing-xxl);
}
.blog-detail-article .post-img img {
  width: 100%;
  height: auto;
  min-height: 400px;
  background-color: var(--color-surface);
  object-fit: cover;
  border-radius: var(--rounded-xxl);
}
.blog-detail-article .title {
  font-size: var(--font-size-heading-lg);
  font-weight: 600;
  line-height: 1.20;
  letter-spacing: -1px;
  color: var(--color-ink);
  margin-bottom: var(--spacing-md);
}
.blog-detail-article .meta-top {
  font-size: var(--font-size-body-sm);
  font-weight: 400;
  color: var(--color-steel);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--spacing-xs);
  margin-bottom: var(--spacing-xl);
  padding-bottom: var(--spacing-xl);
  border-bottom: 1px solid var(--color-hairline);
}
.blog-detail-article .meta-top i {
  font-size: 14px;
  margin-right: 2px;
}
.blog-detail-article .meta-top .separator {
  width: 4px;
  height: 4px;
  border-radius: var(--rounded-full);
  background-color: var(--color-hairline);
}
.blog-detail-article .content h3 {
  font-size: var(--font-size-heading-sm);
  font-weight: 600;
  line-height: 1.30;
  color: var(--color-ink);
  margin-bottom: var(--spacing-sm);
  margin-top: var(--spacing-xl);
}
.blog-detail-article .content p {
  font-size: var(--font-size-body-md);
  font-weight: 400;
  line-height: 1.50;
  color: var(--color-charcoal);
  margin-bottom: var(--spacing-md);
}
.blog-detail-article .content blockquote {
  font-size: var(--font-size-body-md);
  font-weight: 400;
  line-height: 1.50;
  color: var(--color-slate);
  border-left: 3px solid var(--color-brand-coral);
  padding: var(--spacing-sm) 0 var(--spacing-sm) var(--spacing-lg);
  margin: var(--spacing-xl) 0;
  background-color: var(--color-surface);
  border-radius: 0 var(--rounded-sm) var(--rounded-sm) 0;
}
.blog-detail-article .content blockquote p {
  margin-bottom: 0;
  color: var(--color-slate);
}
.blog-detail-article .content img {
  border-radius: var(--rounded-lg);
  margin: var(--spacing-xl) 0;
  max-width: 100%;
  height: auto;
}
.blog-detail-article .meta-bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  gap: var(--spacing-xl);
  margin-top: var(--spacing-xxl);
  padding-top: var(--spacing-xl);
  border-top: 1px solid var(--color-hairline);
}
.blog-detail-article .meta-bottom .meta-cats,
.blog-detail-article .meta-bottom .meta-tags {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  flex-wrap: wrap;
}
.blog-detail-article .meta-bottom .meta-label {
  font-size: var(--font-size-body-sm);
  font-weight: 600;
  color: var(--color-ink);
}
.blog-detail-article .meta-bottom .meta-label i {
  margin-right: 2px;
}
.blog-detail-article .meta-bottom .meta-cats a,
.blog-detail-article .meta-bottom .meta-tags a {
  font-size: var(--font-size-caption);
  font-weight: 500;
  color: var(--color-steel);
  text-decoration: none;
  padding: 2px 10px;
  border-radius: var(--rounded-full);
  background-color: var(--color-surface);
  transition: all 150ms ease;
}
.blog-detail-article .meta-bottom .meta-tags a::before {
  content: "#";
}
.blog-detail-article .meta-bottom .meta-cats a:hover,
.blog-detail-article .meta-bottom .meta-tags a:hover {
  background-color: var(--color-ink);
  color: var(--color-on-dark);
}

/* === Author Bio === */
.author-bio {
  display: flex;
  gap: var(--spacing-lg);
  align-items: flex-start;
  background-color: var(--color-surface);
  border: 1px solid var(--color-hairline);
  border-radius: var(--rounded-xl);
  padding: var(--spacing-xl);
  margin-top: var(--spacing-xxl);
}
.author-bio img {
  width: 80px;
  height: 80px;
  border-radius: var(--rounded-full);
  object-fit: cover;
  background-color: var(--color-hairline-soft);
  flex-shrink: 0;
}
.author-bio .author-info h4 {
  font-size: var(--font-size-card-title);
  font-weight: 600;
  line-height: 1.40;
  color: var(--color-ink);
  margin-bottom: var(--spacing-xxs);
}
.author-bio .author-info p {
  font-size: var(--font-size-body-sm);
  font-weight: 400;
  line-height: 1.50;
  color: var(--color-steel);
  margin-bottom: var(--spacing-sm);
}
.author-bio .author-social {
  display: flex;
  gap: var(--spacing-sm);
}
.author-bio .author-social a {
  font-size: 16px;
  color: var(--color-steel);
  transition: color 150ms ease;
}
.author-bio .author-social a:hover {
  color: var(--color-ink);
}
@media (max-width: 575.98px) {
  .author-bio {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }
  .author-bio .author-social {
    justify-content: center;
  }
}

/* === Comments Section === */
.comments-section {
  margin-top: var(--spacing-xxl);
  padding-top: var(--spacing-xxl);
  border-top: 1px solid var(--color-hairline);
}
.comments-section h3 {
  font-size: var(--font-size-heading-sm);
  font-weight: 600;
  line-height: 1.30;
  color: var(--color-ink);
  margin-bottom: var(--spacing-xl);
}
.comment {
  display: flex;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-xl);
}
.comment.comment-reply {
  margin-left: 64px;
  padding-left: var(--spacing-xl);
  border-left: 2px solid var(--color-hairline);
}
.comment-img {
  flex-shrink: 0;
}
.comment-img img {
  width: 48px;
  height: 48px;
  border-radius: var(--rounded-full);
  object-fit: cover;
  background-color: var(--color-hairline-soft);
}
.comment-body {
  flex: 1;
}
.comment h5 {
  font-size: var(--font-size-body-md);
  font-weight: 600;
  line-height: 1.40;
  color: var(--color-ink);
  margin-bottom: 2px;
}
.comment h5 .comment-date {
  font-size: var(--font-size-caption);
  font-weight: 400;
  color: var(--color-muted);
  margin-left: var(--spacing-xs);
}
.comment p {
  font-size: var(--font-size-body-sm);
  font-weight: 400;
  line-height: 1.50;
  color: var(--color-charcoal);
  margin-bottom: var(--spacing-xs);
}
.comment-reply-link {
  font-size: var(--font-size-caption);
  font-weight: 500;
  color: var(--color-brand-blue-deep);
  text-decoration: none;
}
.comment-reply-link:hover {
  text-decoration: underline;
}
@media (max-width: 575.98px) {
  .comment.comment-reply {
    margin-left: 24px;
    padding-left: var(--spacing-md);
  }
}

/* === Comment Form Section === */
.comment-form-section {
  margin-top: var(--spacing-xxl);
  padding-top: var(--spacing-xxl);
  border-top: 1px solid var(--color-hairline);
}
.comment-form-section h3 {
  font-size: var(--font-size-heading-sm);
  font-weight: 600;
  line-height: 1.30;
  color: var(--color-ink);
  margin-bottom: var(--spacing-xs);
}
.comment-form-section p {
  font-size: var(--font-size-body-sm);
  font-weight: 400;
  color: var(--color-steel);
  margin-bottom: var(--spacing-xl);
}
.comment-form .form-group {
  margin-bottom: var(--spacing-md);
}
.comment-form .form-label {
  font-size: var(--font-size-body-sm);
  font-weight: 500;
  color: var(--color-ink);
  margin-bottom: var(--spacing-xxs);
}
.comment-form .form-control {
  font-family: var(--font-family);
  font-size: var(--font-size-body-sm);
  color: var(--color-ink);
  background-color: var(--color-canvas);
  border: 1px solid var(--color-hairline);
  border-radius: var(--rounded-md);
  padding: var(--spacing-sm) var(--spacing-md);
  height: 40px;
  width: 100%;
}
.comment-form textarea.form-control {
  height: auto;
  min-height: 140px;
}
.comment-form .form-control:focus {
  border-color: var(--color-brand-blue-deep);
  border-width: 2px;
  box-shadow: none;
  outline: none;
}

/* === Author Bio === */
.author-bio {
  background-color: var(--color-canvas);
  border: 1px solid var(--color-hairline);
  border-radius: var(--rounded-xl);
  padding: var(--spacing-xxl);
  display: flex;
  gap: var(--spacing-xl);
  align-items: flex-start;
  margin-bottom: var(--spacing-xxl);
}
.author-bio .author-avatar {
  width: 120px;
  height: 120px;
  border-radius: var(--rounded-full);
  object-fit: cover;
  flex-shrink: 0;
  background-color: var(--color-surface);
}
.author-bio .author-info h2 {
  font-size: var(--font-size-heading-sm);
  font-weight: 600;
  line-height: 1.30;
  color: var(--color-ink);
  margin-bottom: var(--spacing-xs);
}
.author-bio .author-info p {
  font-size: var(--font-size-body-sm);
  font-weight: 400;
  line-height: 1.50;
  color: var(--color-charcoal);
  margin-bottom: var(--spacing-md);
}
.author-bio .author-social {
  display: flex;
  gap: var(--spacing-sm);
}
.author-bio .author-social a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border: 1px solid var(--color-hairline);
  border-radius: var(--rounded-full);
  color: var(--color-steel);
  font-size: 16px;
  text-decoration: none;
  transition: all 150ms ease;
}
.author-bio .author-social a:hover {
  background-color: var(--color-primary);
  color: var(--color-on-primary);
  border-color: var(--color-primary);
}

@media (max-width: 575.98px) {
  .author-bio {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }
  .author-bio .author-social {
    justify-content: center;
  }
}

/* === Blog Detail Header === */
.blog-detail-header {
  margin-bottom: var(--spacing-xxl);
}
.blog-detail-meta {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-md);
}
.reading-time {
  font-size: var(--font-size-caption);
  font-weight: 400;
  color: var(--color-steel);
}
.blog-detail-article .title {
  font-size: var(--font-size-heading-lg);
  font-weight: 600;
  line-height: 1.20;
  letter-spacing: -1px;
  color: var(--color-ink);
  margin-bottom: var(--spacing-md);
}
.blog-detail-article .meta-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--spacing-md);
  font-size: var(--font-size-body-sm);
  font-weight: 400;
  color: var(--color-steel);
  margin-bottom: var(--spacing-xl);
  padding-bottom: var(--spacing-xl);
  border-bottom: 1px solid var(--color-hairline);
}
.meta-top-left {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
}
.meta-author,
.meta-date {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xxs);
  color: var(--color-steel);
}
.meta-separator {
  width: 4px;
  height: 4px;
  border-radius: var(--rounded-full);
  background-color: var(--color-hairline);
  margin: 0 var(--spacing-xxs);
}

/* === Social Share === */
.social-share {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
}
.social-share span {
  font-size: var(--font-size-caption);
  font-weight: 500;
  color: var(--color-steel);
  margin-right: var(--spacing-xxs);
}
.button-icon-circular {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border: 1px solid var(--color-hairline);
  border-radius: var(--rounded-full);
  color: var(--color-ink);
  font-size: 16px;
  text-decoration: none;
  transition: border-color 150ms ease;
}
.button-icon-circular:hover {
  border-color: var(--color-ink);
}
.social-share-bottom {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  margin-top: var(--spacing-xxl);
  padding-top: var(--spacing-xl);
  border-top: 1px solid var(--color-hairline);
}
.social-share-bottom span {
  font-size: var(--font-size-body-sm);
  font-weight: 500;
  color: var(--color-charcoal);
}
.social-share-icons {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
}

/* === Badge Code (Tag) === */
.badge-code {
  display: inline-block;
  font-size: var(--font-size-caption);
  font-weight: 600;
  line-height: 1.50;
  color: var(--color-brand-blue-deep);
  background-color: var(--color-brand-blue-200);
  border-radius: var(--rounded-sm);
  padding: 2px 6px;
  text-decoration: none;
  transition: opacity 150ms ease;
}
.badge-code:hover {
  opacity: 0.8;
  color: var(--color-brand-blue-deep);
}

/* === Post Category Badge (blog list) === */
.post-category-badge {
  margin-bottom: var(--spacing-sm);
  display: inline-block;
  max-width: fit-content;
}

/* === Post Excerpt === */
.post-excerpt {
  font-size: var(--font-size-body-md);
  font-weight: 400;
  line-height: 1.50;
  color: var(--color-charcoal);
  margin-bottom: var(--spacing-lg);
}

/* === Pill Tabs (Categories & Tags Sidebar) === */
.pill-tabs-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-xs);
  list-style: none;
  padding: 0;
  margin: 0;
}
.pill-tab {
  display: inline-block;
  font-size: var(--font-size-body-sm);
  font-weight: 500;
  line-height: 1.50;
  color: var(--color-steel);
  background-color: var(--color-canvas);
  border: 1px solid var(--color-hairline);
  border-radius: var(--rounded-full);
  padding: var(--spacing-xs) var(--spacing-md);
  text-decoration: none;
  transition: all 150ms ease;
}
.pill-tab:hover {
  background-color: var(--color-primary);
  color: var(--color-on-primary);
  border-color: var(--color-primary);
}

/* === Search Pill (sidebar) === */
.search-form {
  position: relative;
}
.search-pill {
  font-family: var(--font-family);
  font-size: var(--font-size-body-sm);
  font-weight: 400;
  color: var(--color-ink);
  background-color: var(--color-surface);
  border: 1px solid var(--color-hairline);
  border-radius: var(--rounded-md);
  padding: var(--spacing-xs) var(--spacing-md);
  padding-right: 40px;
  height: 36px;
  width: 100%;
}
.search-pill:focus {
  outline: none;
  border-color: var(--color-brand-blue-deep);
  border-width: 2px;
}
.search-form button,
.search-btn {
  position: absolute;
  right: 4px;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  color: var(--color-steel);
  font-size: 16px;
  cursor: pointer;
  padding: var(--spacing-xs);
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
}
.search-form button:hover,
.search-btn:hover {
  color: var(--color-ink);
}

/* === Recent Post Item === */
.recent-post-item {
  padding: var(--spacing-sm) 0;
  border-bottom: 1px solid var(--color-hairline-soft);
}
.recent-post-item:last-child {
  border-bottom: none;
  padding-bottom: 0;
}
.recent-post-item h4 {
  font-size: var(--font-size-body-sm);
  font-weight: 500;
  line-height: 1.40;
  margin-bottom: 2px;
}
.recent-post-item h4 a {
  color: var(--color-ink);
  text-decoration: none;
}
.recent-post-item h4 a:hover {
  text-decoration: underline;
}
.recent-post-date {
  font-size: var(--font-size-caption);
  font-weight: 400;
  color: var(--color-steel);
}

/* === Tags List (sidebar) === */
.tags-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-xs);
  list-style: none;
  padding: 0;
  margin: 0;
}

/* === Author Bio (blog detail) === */
.author-bio.card-feature {
  display: flex;
  gap: var(--spacing-lg);
  align-items: flex-start;
  background-color: var(--color-surface);
  border-radius: var(--rounded-xl);
  padding: var(--spacing-xxl);
  margin-top: var(--spacing-xxl);
}
.author-avatar {
  flex-shrink: 0;
  width: 64px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-canvas);
  border-radius: var(--rounded-full);
  font-size: 32px;
  color: var(--color-steel);
}
.author-info h4 {
  font-size: var(--font-size-card-title);
  font-weight: 600;
  line-height: 1.40;
  color: var(--color-ink);
  margin-bottom: var(--spacing-xxs);
}
.author-info p {
  font-size: var(--font-size-body-sm);
  font-weight: 400;
  line-height: 1.50;
  color: var(--color-charcoal);
  margin-bottom: 0;
}

/* === Blog List Article card-base === */
.blog-list-article.card-base {
  overflow: hidden;
  height: 100%;
  transition: box-shadow 150ms ease;
  padding: 0;
}
.blog-list-article.card-base:hover {
  box-shadow: var(--shadow-card);
}
.blog-list-article .post-content {
  padding: var(--spacing-xl);
}
.blog-list-article .title {
  font-size: var(--font-size-heading-sm);
  font-weight: 600;
  line-height: 1.30;
  color: var(--color-ink);
  margin-bottom: var(--spacing-sm);
}
.blog-list-article .title a {
  color: var(--color-ink);
  text-decoration: none;
}
.blog-list-article .title a:hover {
  text-decoration: underline;
}

/* === Search Results Header === */
.search-results-header {
  padding-bottom: var(--spacing-md);
  border-bottom: 1px solid var(--color-hairline);
}
.search-results-title {
  font-size: var(--font-size-heading-sm);
  font-weight: 600;
  line-height: 1.30;
  color: var(--color-ink);
  margin-bottom: var(--spacing-xxs);
}
.search-results-count {
  font-size: var(--font-size-body-sm);
  font-weight: 400;
  color: var(--color-steel);
  margin-bottom: 0;
}

/* === Responsive Blog === */
@media (max-width: 575.98px) {
  .author-bio.card-feature {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }
  .blog-detail-article .meta-top {
    flex-direction: column;
    align-items: flex-start;
  }
}