/* ==========================================================================
   DiagHuman Design System — Modern Human-Tech Architecture
   Strictly Zero Gradients, 100% Solid Variants, Harmonious Logo Palette
   Primary 1: Diag Blue (#0973B7) • Primary 2: Diag Red (#C93627)
   Clean Modern Sans-Serif Typography (Be Vietnam Pro) • Cool Slate Tonal Zones
   ========================================================================== */

:root {
  color-scheme: light;

  /* Brand 1: Diag Blue & Variants (Logo Blue Half • Tech & Career) */
  --c-career-base: #0973b7;
  --c-career-dark: #064875;
  --c-career-light: #f0f7fc;
  --c-career-border: #b8dcf2;
  --c-career-text: #064875;

  /* Brand 2: Diag Red & Variants (Logo Red Half • Human & Biometrics) */
  --c-diag-base: #c93627;
  --c-diag-dark: #961f13;
  --c-diag-light: #fdf3f2;
  --c-diag-border: #f7cac6;
  --c-diag-text: #8a1b10;
  --c-diagnosis-base: var(--c-diag-base);
  --c-diagnosis-dark: var(--c-diag-dark);
  --c-diagnosis-light: var(--c-diag-light);
  --c-diagnosis-border: var(--c-diag-border);
  --c-diagnosis-text: var(--c-diag-text);

  /* Distinct Section Background Zones (Modern Neutral Slate Rhythms) */
  --bg-header: #ffffff;
  --bg-hero: #ffffff;
  --bg-products: #f8fafc;
  --bg-partners: #f1f5f9;
  --bg-news: #ffffff;
  --bg-faq: #f8fafc;
  --bg-contact: #f1f5f9;
  --bg-footer: #e2e8f0;

  /* Neutral Tone & Surface Palette (Cool Tech Slate) */
  --text-main: #0f172a;
  --text-muted: #475569;
  --text-dim: #334155;
  --border-rule: #e2e8f0;
  --border-subtle: #f1f5f9;

  /* Typography Scales (Modern Sans-Serif) */
  --font-sans: 'Be Vietnam Pro', system-ui, -apple-system, sans-serif;

  /* Corner Radii & Transitions */
  --radius-sm: 4px;
  --radius-md: 6px;
  --transition-fast: 160ms cubic-bezier(0.16, 1, 0.3, 1);
  --transition-normal: 240ms cubic-bezier(0.16, 1, 0.3, 1);
}

/* Base Reset & Core Setup */
*, *::before, *::after {
  box-sizing: border-box;
}

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

body {
  margin: 0;
  padding: 0;
  font-family: var(--font-sans);
  color: var(--text-main);
  background-color: var(--bg-hero);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Accessibility Skip Link */
.skip-link {
  position: absolute;
  top: 8px;
  left: 8px;
  z-index: 1000;
  padding: 10px 16px;
  background: var(--text-main);
  color: #ffffff;
  font-weight: 600;
  border-radius: var(--radius-sm);
  transform: translateY(-150%);
  transition: transform var(--transition-fast);
  text-decoration: none;
}

.skip-link:focus {
  transform: translateY(0);
}

/* Top Announcement Bar */
.top-announcement-bar {
  background-color: var(--c-career-dark);
  color: #ffffff;
  padding: 8px 16px;
  font-size: 0.84rem;
  border-bottom: 1px solid var(--c-career-border);
}

.announcement-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
  text-align: center;
}

.announcement-badge {
  background-color: var(--c-diag-base);
  color: #ffffff;
  font-size: 0.72rem;
  font-weight: 800;
  padding: 2px 8px;
  border-radius: var(--radius-sm);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.announcement-text {
  font-weight: 500;
}

.announcement-link {
  color: #ffffff;
  font-weight: 700;
  text-decoration: underline;
  text-underline-offset: 3px;
  margin-left: 4px;
}

.announcement-link:hover {
  color: var(--c-career-light);
}

a:focus-visible, button:focus-visible, span[tabindex="0"]:focus-visible, summary:focus-visible {
  outline: 2px solid var(--c-career-base);
  outline-offset: 3px;
}

/* Layout Containers & Section Headers */
.section-container {
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 28px;
}

.architectural-index {
  display: inline-block;
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--c-career-base);
  margin-bottom: 12px;
}

.section-header {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 48px;
}

.section-title {
  margin: 0 0 14px;
  font-size: clamp(2rem, 3.2vw, 2.5rem);
  font-weight: 800;
  letter-spacing: -0.025em;
  color: var(--text-main);
  line-height: 1.2;
}

.section-subtitle {
  margin: 0 auto;
  font-size: 1.02rem;
  color: var(--text-muted);
  line-height: 1.65;
  max-width: 680px;
}

/* ==========================================================================
   Header / Topbar (#ffffff)
   ========================================================================== */
.header {
  background-color: var(--bg-header);
  border-bottom: 1px solid var(--border-rule);
  padding: 14px 0;
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-container {
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--text-main);
}

.brand-logo-img {
  display: block;
  object-fit: contain;
}

.brand-text {
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: -0.01em;
  display: inline-flex;
  align-items: center;
}

.brand-diag {
  color: var(--c-diagnosis-base); /* #C93627 Diag Red */
  font-weight: 800;
  letter-spacing: 0.02em;
}

.brand-human {
  color: var(--c-career-base); /* #0973B7 Diag Blue */
  font-weight: 800;
  letter-spacing: 0.02em;
}

.header-nav {
  display: flex;
  align-items: center;
  gap: 20px;
}

.nav-link {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-muted);
  text-decoration: none;
  padding: 6px 10px;
  border-radius: var(--radius-sm);
  transition: color var(--transition-fast), background-color var(--transition-fast);
}

.nav-link:hover {
  color: var(--text-main);
  background-color: var(--border-subtle);
}

.nav-link.active,
.nav-link[aria-current="page"]:not(.nav-link-cta) {
  color: var(--text-main);
  background-color: var(--border-subtle);
  font-weight: 700;
}

.nav-link-cta {
  background-color: var(--c-career-base);
  color: #ffffff !important;
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  transition: background-color var(--transition-fast), transform var(--transition-fast);
}

.nav-link-cta:hover {
  background-color: var(--c-career-dark);
  transform: translateY(-1px);
}

.nav-link-cta.active,
.nav-link-cta[aria-current="page"] {
  background-color: var(--c-career-dark);
  box-shadow: 0 0 0 2px rgba(9, 115, 183, 0.35);
}

/* ==========================================================================
   Section 1: Giới Thiệu (About) (#ffffff)
   ========================================================================== */
.about-section {
  background-color: var(--bg-hero);
  padding: 68px 0 76px;
}

.about-hero-grid {
  display: grid;
  grid-template-columns: 1.25fr 1fr;
  gap: 56px;
  align-items: center;
}

.about-title {
  margin: 0 0 20px;
  font-size: clamp(2.3rem, 4vw, 3.2rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.03em;
  color: var(--text-main);
}

.about-desc {
  margin: 0 0 32px;
  font-size: 1.05rem;
  color: var(--text-muted);
  line-height: 1.7;
  max-width: 580px;
}

.about-actions {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background-color: var(--c-career-base);
  color: #ffffff;
  padding: 14px 26px;
  font-size: 0.95rem;
  font-weight: 700;
  text-decoration: none;
  border-radius: var(--radius-sm);
  transition: background-color var(--transition-fast), transform var(--transition-fast);
}

.btn-primary:hover {
  background-color: var(--c-career-dark);
  transform: translateY(-2px);
}

.btn-primary .arrow-icon {
  width: 18px;
  height: 18px;
  stroke: currentColor;
  stroke-width: 2.2;
  fill: none;
  transition: transform var(--transition-fast);
}

.btn-primary:hover .arrow-icon {
  transform: translateX(4px);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background-color: #ffffff;
  color: var(--text-main);
  padding: 13px 22px;
  font-size: 0.95rem;
  font-weight: 700;
  text-decoration: none;
  border: 1px solid var(--border-rule);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

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

/* About Stats Panel */
.about-stats-panel {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.stat-card {
  display: flex;
  align-items: flex-start;
  gap: 20px;
  background-color: #ffffff;
  border: 1px solid var(--border-rule);
  border-radius: var(--radius-sm);
  padding: 22px 24px;
  box-shadow: 0 2px 8px rgba(15, 23, 42, 0.03);
  transition: border-color var(--transition-fast), transform var(--transition-fast);
}

.stat-card:hover {
  border-color: var(--c-career-base);
  transform: translateX(4px);
}

.stat-num {
  font-size: 2.3rem;
  font-weight: 800;
  line-height: 1;
  color: var(--c-career-base);
  flex-shrink: 0;
  width: 48px;
  letter-spacing: -0.03em;
}

.stat-card:nth-child(2) .stat-num {
  color: var(--c-diag-base);
}

.stat-card:nth-child(3) .stat-num {
  color: var(--text-main);
}

.stat-info {
  flex: 1;
}

.stat-label {
  margin: 0 0 4px;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-main);
}

.stat-sub {
  margin: 0;
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.5;
}

/* ==========================================================================
   Section 2: Sản Phẩm (Products) (#f8fafc)
   ========================================================================== */
.products-section {
  background-color: var(--bg-products);
  border-top: 1px solid var(--border-rule);
  border-bottom: 1px solid var(--border-rule);
  padding: 72px 0 84px;
}

.portals-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 36px;
  margin-bottom: 56px;
}

.portal-card {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  border-radius: var(--radius-md);
  border: 2px solid;
  padding: 36px 34px 34px;
  background-color: #ffffff;
  position: relative;
  transition: transform var(--transition-normal), box-shadow var(--transition-normal), border-color var(--transition-normal);
}

.portal-card:hover {
  transform: translateY(-5px);
}

/* Cổng 01: Career Personality (Diag Blue) */
.portal-career {
  border-color: var(--c-career-border);
}

.portal-career:hover {
  border-color: var(--c-career-base);
  box-shadow: 0 14px 28px rgba(9, 115, 183, 0.1);
}

.portal-career .card-num {
  color: var(--c-career-dark);
}

.portal-career .card-category {
  color: var(--c-career-text);
  background-color: var(--c-career-light);
  border: 1px solid var(--c-career-border);
}

.portal-career .card-title {
  color: var(--c-career-dark);
}

.portal-career .card-emblem-wrap {
  color: var(--c-career-base);
}

/* Cổng 02: DiagnosisHub (Diag Red) */
.portal-diagnosis {
  border-color: var(--c-diag-border);
}

.portal-diagnosis:hover {
  border-color: var(--c-diag-base);
  box-shadow: 0 14px 28px rgba(201, 54, 39, 0.1);
}

.portal-diagnosis .card-num {
  color: var(--c-diag-dark);
}

.portal-diagnosis .card-category {
  color: var(--c-diag-text);
  background-color: var(--c-diag-light);
  border: 1px solid var(--c-diag-border);
}

.portal-diagnosis .card-title {
  color: var(--c-diag-dark);
}

.portal-diagnosis .card-emblem-wrap {
  color: var(--c-diag-base);
}

.card-meta {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 24px;
}

.card-meta-left {
  display: flex;
  align-items: center;
  gap: 12px;
}

.card-num {
  font-size: 1.8rem;
  font-weight: 800;
  line-height: 1;
  letter-spacing: -0.03em;
}

.card-category {
  display: inline-block;
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  text-transform: uppercase;
  width: fit-content;
}

.card-emblem-wrap {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: transform var(--transition-normal);
}

.portal-card:hover .card-emblem-wrap {
  transform: scale(1.08) rotate(4deg);
}

.portal-emblem {
  width: 38px;
  height: 38px;
}

.card-heading-group {
  margin-bottom: 22px;
}

.card-title {
  margin: 0 0 10px;
  font-size: clamp(1.8rem, 2.6vw, 2.3rem);
  font-weight: 800;
  letter-spacing: -0.025em;
  line-height: 1.2;
}

.card-lead {
  margin: 0;
  font-size: 0.96rem;
  color: var(--text-muted);
  line-height: 1.55;
}

.feature-list {
  list-style: none;
  padding: 0;
  margin: 0 0 32px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.feature-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 14px;
  background-color: var(--bg-products);
  border: 1px solid var(--border-rule);
  border-radius: var(--radius-sm);
  font-size: 0.92rem;
  font-weight: 500;
}

.feature-label {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text-main);
}

.check-icon {
  width: 16px;
  height: 16px;
  stroke: currentColor;
  stroke-width: 2.2;
  fill: none;
  stroke-linecap: round;
  stroke-linejoin: round;
  flex-shrink: 0;
}

.portal-career .check-icon {
  color: var(--c-career-base);
}

.portal-diagnosis .check-icon {
  color: var(--c-diag-base);
}

.tooltip-trigger {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: help;
  color: var(--text-dim);
  padding: 6px;
  min-width: 28px;
  min-height: 28px;
  border-radius: var(--radius-sm);
  transition: color var(--transition-fast), background-color var(--transition-fast);
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
}

.tooltip-trigger:hover,
.tooltip-trigger:focus,
.tooltip-trigger:focus-within,
.tooltip-trigger:active {
  color: var(--text-main);
  background-color: var(--border-rule);
}

.info-icon {
  width: 15px;
  height: 15px;
  stroke: currentColor;
  stroke-width: 1.8;
  fill: none;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.tooltip-box {
  position: absolute;
  bottom: calc(100% + 8px);
  right: 0;
  width: 260px;
  background-color: #0f172a;
  color: #ffffff;
  padding: 10px 14px;
  font-size: 0.8rem;
  font-weight: 400;
  line-height: 1.45;
  border-radius: var(--radius-sm);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.18);
  pointer-events: none;
  opacity: 0;
  visibility: hidden;
  transform: translateY(4px);
  transition: opacity var(--transition-normal), transform var(--transition-normal), visibility var(--transition-normal);
  z-index: 50;
}

.tooltip-box::after {
  content: '';
  position: absolute;
  top: 100%;
  right: 8px;
  border-width: 5px;
  border-style: solid;
  border-color: #0f172a transparent transparent transparent;
}

.tooltip-trigger:hover .tooltip-box,
.tooltip-trigger:focus .tooltip-box,
.tooltip-trigger:focus-within .tooltip-box,
.tooltip-trigger:active .tooltip-box {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.portal-cta {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  width: 100%;
  padding: 15px 22px;
  font-size: 0.96rem;
  font-weight: 700;
  text-decoration: none;
  border-radius: var(--radius-sm);
  color: #ffffff;
  transition: background-color var(--transition-fast), transform var(--transition-fast);
}

.arrow-icon {
  width: 18px;
  height: 18px;
  stroke: currentColor;
  stroke-width: 2.2;
  fill: none;
  stroke-linecap: round;
  stroke-linejoin: round;
  transition: transform var(--transition-fast);
}

.portal-cta:hover .external-arrow,
.panel-cta-btn:hover .external-arrow {
  transform: translate(3px, -3px);
}

.cta-career {
  background-color: var(--c-career-base);
}

.cta-career:hover {
  background-color: var(--c-career-dark);
}

.cta-diagnosis {
  background-color: var(--c-diag-base);
}

.cta-diagnosis:hover {
  background-color: var(--c-diag-dark);
}

/* Chooser Interactive Tabs (#chooser) */
.chooser-container {
  max-width: 860px;
  margin: 0 auto;
}

.chooser-header {
  text-align: center;
  margin-bottom: 28px;
}

.chooser-title {
  margin: 0 0 8px;
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--text-main);
  letter-spacing: -0.02em;
}

.chooser-subtitle {
  margin: 0;
  font-size: 0.96rem;
  color: var(--text-muted);
}

.chooser-tabs {
  display: flex;
  justify-content: center;
  gap: 14px;
  margin-bottom: 24px;
  flex-wrap: wrap;
}

.tab-btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 13px 22px;
  font-family: var(--font-sans);
  font-size: 0.92rem;
  font-weight: 700;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-rule);
  background-color: #ffffff;
  color: var(--text-muted);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.tab-btn:hover {
  color: var(--text-main);
  border-color: var(--text-dim);
}

.tab-btn.active-career {
  background-color: var(--c-career-base);
  border-color: var(--c-career-dark);
  color: #ffffff;
  box-shadow: 0 4px 12px rgba(9, 115, 183, 0.16);
}

.tab-btn.active-diagnosis {
  background-color: var(--c-diag-base);
  border-color: var(--c-diag-dark);
  color: #ffffff;
  box-shadow: 0 4px 12px rgba(201, 54, 39, 0.16);
}

.chooser-panel {
  display: none;
}

.chooser-panel.active {
  display: block;
  animation: appearUp 0.35s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.panel-card {
  background-color: #ffffff;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-rule);
  padding: 34px 38px;
  box-shadow: 0 4px 16px rgba(15, 23, 42, 0.04);
}

.panel-grid {
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  gap: 36px;
  align-items: start;
}

.panel-col-title {
  font-size: 1.05rem;
  font-weight: 700;
  margin: 0 0 10px;
  color: var(--text-main);
  letter-spacing: -0.01em;
}

.panel-desc {
  margin: 0 0 18px;
  font-size: 0.92rem;
  color: var(--text-muted);
  line-height: 1.6;
}

.step-flow {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.step-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 0.9rem;
  color: var(--text-main);
  line-height: 1.5;
}

.step-badge {
  flex-shrink: 0;
  width: 22px;
  height: 22px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 800;
  margin-top: 1px;
}

.panel-career .step-badge {
  background-color: var(--c-career-light);
  color: var(--c-career-text);
  border: 1px solid var(--c-career-border);
}

.panel-diagnosis .step-badge {
  background-color: var(--c-diag-light);
  color: var(--c-diag-text);
  border: 1px solid var(--c-diag-border);
}

.panel-footer-action {
  margin-top: 28px;
  padding-top: 20px;
  border-top: 1px solid var(--border-rule);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}

.panel-target-user {
  font-size: 0.88rem;
  color: var(--text-dim);
}

.panel-target-user strong {
  color: var(--text-main);
}

.panel-cta-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 22px;
  font-size: 0.92rem;
  font-weight: 700;
  text-decoration: none;
  border-radius: var(--radius-sm);
  color: #ffffff;
  transition: background-color var(--transition-fast), transform var(--transition-fast);
}

.panel-career .panel-cta-btn {
  background-color: var(--c-career-base);
}

.panel-career .panel-cta-btn:hover {
  background-color: var(--c-career-dark);
}

.panel-diagnosis .panel-cta-btn {
  background-color: var(--c-diag-base);
}

.panel-diagnosis .panel-cta-btn:hover {
  background-color: var(--c-diag-dark);
}

/* ==========================================================================
   Section 3: Các Đối Tác Đồng Hành (Partners) (#f1f5f9)
   ========================================================================== */
.partners-section {
  background-color: var(--bg-partners);
  border-bottom: 1px solid var(--border-rule);
  padding: 72px 0 80px;
}

.partners-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.partner-card {
  background-color: #ffffff;
  border: 1px solid var(--border-rule);
  border-radius: var(--radius-sm);
  padding: 28px 24px;
  display: flex;
  flex-direction: column;
  box-shadow: 0 2px 6px rgba(15, 23, 42, 0.02);
  transition: transform var(--transition-fast), border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.partner-card:hover {
  transform: translateY(-4px);
  border-color: var(--c-career-base);
  box-shadow: 0 8px 18px rgba(15, 23, 42, 0.06);
}

.partner-logo-mark {
  width: 48px;
  height: 48px;
  color: var(--c-career-base);
  margin-bottom: 18px;
}

.partner-svg {
  width: 100%;
  height: 100%;
}

.partner-name {
  margin: 0 0 8px;
  font-size: 1.32rem;
  font-weight: 700;
  color: var(--text-main);
  line-height: 1.35;
  letter-spacing: -0.015em;
}

.partner-role {
  margin: 0;
  font-size: 0.86rem;
  color: var(--text-muted);
  line-height: 1.55;
}

/* ==========================================================================
   Section 4: Tin Tức Sức Khỏe Não Bộ (News) (#ffffff)
   ========================================================================== */
.news-section {
  background-color: var(--bg-news);
  padding: 72px 0 80px;
  border-bottom: 1px solid var(--border-rule);
}

.news-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.news-card {
  background-color: var(--bg-products);
  border: 1px solid var(--border-rule);
  border-radius: var(--radius-sm);
  padding: 28px 26px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: transform var(--transition-fast), border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.news-card:hover {
  transform: translateY(-4px);
  border-color: var(--c-career-base);
  box-shadow: 0 8px 20px rgba(15, 23, 42, 0.06);
}

.news-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 14px;
}

.news-tag {
  font-size: 0.72rem;
  font-weight: 700;
  padding: 3px 8px;
  border-radius: var(--radius-sm);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.tag-science {
  background-color: var(--c-career-light);
  color: var(--c-career-text);
  border: 1px solid var(--c-career-border);
}

.tag-psychology {
  background-color: var(--c-diag-light);
  color: var(--c-diag-text);
  border: 1px solid var(--c-diag-border);
}

.tag-career {
  background-color: var(--bg-header);
  color: var(--text-main);
  border: 1px solid var(--border-rule);
}

.news-date {
  font-size: 0.78rem;
  color: var(--text-dim);
  font-weight: 600;
}

.news-card-title {
  margin: 0 0 12px;
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--text-main);
  line-height: 1.35;
  letter-spacing: -0.015em;
}

.news-card-excerpt {
  margin: 0 0 20px;
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.6;
}

.news-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 14px;
  border-top: 1px solid var(--border-rule);
}

.news-read-time {
  font-size: 0.78rem;
  color: var(--text-dim);
  font-weight: 500;
}

.news-link {
  font-size: 0.84rem;
  font-weight: 700;
  color: var(--c-career-base);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.news-link:hover {
  color: var(--c-career-dark);
  text-decoration: underline;
}

/* ==========================================================================
   Section 5: FAQ Accordion (#f8fafc)
   ========================================================================== */
.faq-section {
  background-color: var(--bg-faq);
  border-bottom: 1px solid var(--border-rule);
  padding: 68px 0;
}

.faq-list {
  max-width: 820px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.faq-item {
  background-color: #ffffff;
  border: 1px solid var(--border-rule);
  border-radius: var(--radius-sm);
  overflow: hidden;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.faq-item[open] {
  border-color: var(--c-career-border);
  box-shadow: 0 4px 14px rgba(15, 23, 42, 0.04);
}

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 24px;
  font-size: 1.02rem;
  font-weight: 700;
  color: var(--text-main);
  cursor: pointer;
  list-style: none;
  user-select: none;
}

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

.faq-icon {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  stroke: var(--text-muted);
  stroke-width: 2.2;
  transition: transform var(--transition-normal), stroke var(--transition-fast);
}

.faq-item[open] .faq-icon {
  transform: rotate(45deg);
  stroke: var(--c-career-base);
}

.faq-answer {
  padding: 0 24px 22px;
  font-size: 0.94rem;
  color: var(--text-muted);
  line-height: 1.65;
  border-top: 1px solid var(--border-subtle);
  padding-top: 16px;
}

/* ==========================================================================
   Section 6: Liên Hệ Trực Tiếp (Contact) (#f1f5f9)
   ========================================================================== */
.contact-section {
  background-color: var(--bg-contact);
  padding: 72px 0 80px;
  border-bottom: 1px solid var(--border-rule);
}

.contact-hub-grid {
  display: grid;
  grid-template-columns: 1.15fr 1.35fr;
  gap: 40px;
  align-items: start;
}

.contact-profile-card {
  background-color: #ffffff;
  border: 1px solid var(--border-rule);
  border-radius: var(--radius-sm);
  padding: 32px 30px;
  box-shadow: 0 2px 8px rgba(15, 23, 42, 0.03);
}

.profile-header {
  display: flex;
  align-items: center;
  gap: 18px;
  margin-bottom: 20px;
}

.profile-avatar-wrap {
  width: 58px;
  height: 58px;
  border-radius: 50%;
  background-color: var(--c-career-light);
  border: 1px solid var(--c-career-border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--c-career-base);
  flex-shrink: 0;
}

.profile-svg {
  width: 32px;
  height: 32px;
}

.contact-person-name {
  margin: 0 0 4px;
  font-size: 1.45rem;
  font-weight: 800;
  color: var(--text-main);
  letter-spacing: -0.02em;
}

.contact-person-role {
  margin: 0 0 8px;
  font-size: 0.88rem;
  color: var(--text-muted);
}

.contact-status-tag {
  display: inline-block;
  font-size: 0.74rem;
  font-weight: 700;
  padding: 2px 8px;
  background-color: var(--c-career-light);
  border: 1px solid var(--c-career-border);
  color: var(--c-career-text);
  border-radius: var(--radius-sm);
}

.contact-profile-desc {
  margin: 0;
  font-size: 0.94rem;
  color: var(--text-muted);
  line-height: 1.65;
}

.contact-channels-panel {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.channel-card {
  background-color: #ffffff;
  border: 1px solid var(--border-rule);
  border-radius: var(--radius-sm);
  padding: 18px 22px;
  display: flex;
  align-items: center;
  gap: 18px;
  box-shadow: 0 2px 6px rgba(15, 23, 42, 0.02);
  transition: border-color var(--transition-fast), transform var(--transition-fast);
}

.channel-card:hover {
  border-color: var(--c-career-base);
  transform: translateX(4px);
}

.channel-icon-wrap {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  background-color: var(--bg-products);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--c-career-base);
  flex-shrink: 0;
}

.channel-svg {
  width: 22px;
  height: 22px;
}

.channel-body {
  flex: 1;
}

.channel-label {
  display: block;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--text-dim);
  margin-bottom: 2px;
}

.channel-value {
  display: block;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-main);
  text-decoration: none;
  line-height: 1.3;
}

.channel-value:hover {
  color: var(--c-career-base);
  text-decoration: underline;
}

.channel-sub {
  display: block;
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-top: 2px;
}

.channel-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 8px 16px;
  font-size: 0.85rem;
  font-weight: 700;
  text-decoration: none;
  border: 1px solid var(--c-career-base);
  border-radius: var(--radius-sm);
  color: var(--c-career-base);
  background-color: transparent;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.channel-btn:hover {
  background-color: var(--c-career-base);
  color: #ffffff;
}

/* ==========================================================================
   Footer (#e2e8f0)
   ========================================================================== */
.footer {
  background-color: var(--bg-footer);
  border-top: 1px solid var(--border-rule);
  padding: 56px 0 28px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 48px;
  margin-bottom: 40px;
}

.footer-brand-lockup {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
}

.footer-brand-title {
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: -0.01em;
  display: inline-flex;
  align-items: center;
}

.footer-desc {
  margin: 0 0 16px;
  font-size: 0.92rem;
  color: var(--text-muted);
  max-width: 440px;
  line-height: 1.6;
}

.footer-coords {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--text-dim);
}

.coord-divider {
  color: var(--text-dim);
}

.footer-heading {
  margin: 0 0 16px;
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-main);
  letter-spacing: -0.01em;
}

.footer-quick-links {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px 20px;
}

.footer-quick-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.88rem;
  font-weight: 600;
  transition: color var(--transition-fast);
}

.footer-quick-links a:hover {
  color: var(--text-main);
}

.footer-bottom-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 24px;
  border-top: 1px solid var(--border-rule);
  font-size: 0.82rem;
  color: var(--text-muted);
}

.copyright {
  margin: 0;
}

.footer-sub-links {
  font-size: 0.82rem;
  color: var(--text-dim);
  font-weight: 600;
}

/* ==========================================================================
   Smooth Keyframe Animations
   ========================================================================== */
@keyframes appearUp {
  from {
    opacity: 0;
    transform: translateY(18px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.animate-in {
  opacity: 0;
  animation: appearUp 0.7s cubic-bezier(0.16, 1, 0.3, 1) forwards;
  animation-delay: var(--delay, 0s);
}

/* ==========================================================================
   Gateway / Portal Teaser Banners (Driving Exploration to Subpages)
   ========================================================================== */

/* About Section Curiosity Teaser */
.about-gateway-hint {
  margin-top: 24px;
  background-color: var(--bg-products);
  border: 1px solid var(--border-rule);
  border-left: 4px solid var(--c-career-base);
  border-radius: var(--radius-sm);
  padding: 18px 22px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.hint-text {
  font-size: 0.92rem;
  color: var(--text-muted);
  line-height: 1.55;
}

.hint-text strong {
  color: var(--text-main);
  font-weight: 700;
}

.hint-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--c-career-base);
  text-decoration: none;
  white-space: nowrap;
  flex-shrink: 0;
  transition: transform var(--transition-fast), color var(--transition-fast);
}

.hint-link:hover {
  color: var(--c-career-dark);
  transform: translateX(3px);
}

.hint-link .arrow-icon {
  width: 16px;
  height: 16px;
  stroke: currentColor;
  stroke-width: 2.2;
  fill: none;
}

/* Products Teaser: Replaces full 100-line chooser on index.html */
.product-explore-teaser {
  margin-top: 48px;
  background-color: #ffffff;
  border: 1px solid var(--border-rule);
  border-radius: var(--radius-md);
  padding: 36px 40px;
  box-shadow: 0 4px 16px rgba(15, 23, 42, 0.04);
}

.teaser-badge-wrap {
  margin-bottom: 12px;
}

.teaser-badge {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  color: var(--c-career-base);
  background-color: var(--c-career-light);
  border: 1px solid var(--c-career-border);
  padding: 4px 10px;
  border-radius: var(--radius-sm);
}

.teaser-body-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 36px;
  align-items: center;
}

.teaser-title {
  margin: 0 0 10px;
  font-size: 1.4rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--text-main);
  line-height: 1.3;
}

.teaser-desc {
  margin: 0;
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.65;
}

.teaser-right {
  display: flex;
  flex-direction: column;
  gap: 10px;
  align-items: flex-start;
}

.teaser-btn {
  width: 100%;
  justify-content: center;
  text-align: center;
}

.teaser-note {
  font-size: 0.8rem;
  color: var(--text-dim);
  line-height: 1.4;
}

.portal-subpage-link {
  display: block;
  text-align: center;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-muted);
  text-decoration: none;
  margin-top: 12px;
  transition: color var(--transition-fast);
}

.portal-subpage-link:hover {
  color: var(--text-main);
  text-decoration: underline;
}

/* Partners Gateway Footer Banner */
.partners-gateway-footer {
  margin-top: 36px;
  background-color: #ffffff;
  border: 1px solid var(--border-rule);
  border-radius: var(--radius-sm);
  padding: 24px 30px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}

.gateway-footer-info h4 {
  margin: 0 0 6px;
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-main);
}

.gateway-footer-info p {
  margin: 0;
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.55;
}

/* News Gateway Callout */
.news-gateway-callout {
  margin-top: 36px;
  background-color: var(--bg-products);
  border: 1px solid var(--border-rule);
  border-radius: var(--radius-sm);
  padding: 28px 32px;
}

.callout-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}

.callout-heading {
  margin: 0 0 6px;
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--text-main);
  letter-spacing: -0.015em;
}

.callout-desc {
  margin: 0;
  font-size: 0.92rem;
  color: var(--text-muted);
  line-height: 1.55;
}

.callout-btn-wrap {
  flex-shrink: 0;
}

/* Contact Portal Link */
.contact-portal-cta-wrap {
  margin-top: 28px;
  padding-top: 24px;
  border-top: 1px solid var(--border-rule);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.contact-portal-text {
  font-size: 0.92rem;
  color: var(--text-muted);
}

.contact-portal-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  font-size: 0.92rem;
  color: var(--c-career-base);
  text-decoration: none;
  white-space: nowrap;
}

.contact-portal-link:hover {
  color: var(--c-career-dark);
  text-decoration: underline;
}

/* ==========================================================================
   Products Subpage: Detailed Comparison Matrix Table
   ========================================================================== */
.comparison-matrix-container {
  max-width: 960px;
  margin: 60px auto 40px;
  background-color: #ffffff;
  border: 1px solid var(--border-rule);
  border-radius: var(--radius-md);
  padding: 36px 40px;
  box-shadow: 0 4px 16px rgba(15, 23, 42, 0.04);
}

.matrix-header {
  text-align: center;
  margin-bottom: 28px;
}

.matrix-title {
  margin: 0 0 8px;
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--text-main);
  letter-spacing: -0.02em;
}

.matrix-sub {
  margin: 0;
  font-size: 0.95rem;
  color: var(--text-muted);
}

.comparison-table-wrap {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

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

.comparison-table th,
.comparison-table td {
  padding: 16px 20px;
  border-bottom: 1px solid var(--border-rule);
  vertical-align: middle;
}

.comparison-table th {
  background-color: var(--bg-products);
  color: var(--text-main);
  font-weight: 800;
  font-size: 0.92rem;
  letter-spacing: -0.01em;
}

.comparison-table th.col-feature {
  width: 25%;
}

.comparison-table th.col-career {
  width: 37.5%;
  color: var(--c-career-base);
  border-top: 3px solid var(--c-career-base);
}

.comparison-table th.col-diag {
  width: 37.5%;
  color: var(--c-diag-base);
  border-top: 3px solid var(--c-diag-base);
}

.comparison-table td.col-feature {
  font-weight: 700;
  color: var(--text-main);
  background-color: #fafaf9;
}

.comparison-table tr:hover td {
  background-color: #f8fafc;
}

.comparison-table tr:hover td.col-feature {
  background-color: #f1f5f9;
}

.matrix-badge-career {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: var(--radius-sm);
  background-color: var(--c-career-light);
  color: var(--c-career-text);
  border: 1px solid var(--c-career-border);
}

.matrix-badge-diag {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: var(--radius-sm);
  background-color: var(--c-diag-light);
  color: var(--c-diag-text);
  border: 1px solid var(--c-diag-border);
}

/* ==========================================================================
   Portal Landing Architecture — HubSG Inspired Gateway Styles
   Strictly Zero Gradients • Clean Flat Architecture • High-End Minimalist
   ========================================================================== */

/* 1. Portal Hero Header & Optional Banner Slider */
.portal-hero-section {
  padding: 40px 0 20px;
  background-color: var(--bg-hero);
}

.portal-hero-header {
  text-align: center;
  max-width: 820px;
  margin: 0 auto 28px;
}

.portal-headline {
  font-size: clamp(2rem, 4vw, 2.75rem);
  font-weight: 800;
  line-height: 1.25;
  letter-spacing: -0.02em;
  color: var(--text-main);
  margin: 0;
}

/* Banner Slider Container (Tùy chọn: hiển thị ảnh hoặc gập lại mượt mà) */
.portal-banner-wrap {
  position: relative;
  max-width: 1140px;
  margin: 0 auto 36px;
  border-radius: var(--radius-md);
  overflow: hidden;
  background-color: var(--bg-products);
  border: 1px solid var(--border-rule);
}

.portal-banner-slider {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  max-height: 480px;
  overflow: hidden;
  background-color: #0f172a;
}

.banner-slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  pointer-events: none;
  transition: opacity 600ms ease;
  display: flex;
  align-items: center;
  justify-content: center;
}

.banner-slide.active {
  opacity: 1;
  pointer-events: auto;
}

.banner-slide-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* Pagination Dots (● ○ ○ tương tự phong cách HubSG) */
.banner-dots-nav {
  position: absolute;
  bottom: 16px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 10px;
  z-index: 5;
  background-color: rgba(15, 23, 42, 0.45);
  padding: 6px 14px;
  border-radius: 20px;
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.banner-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background-color: rgba(255, 255, 255, 0.5);
  border: none;
  padding: 0;
  cursor: pointer;
  transition: background-color var(--transition-fast), transform var(--transition-fast);
}

.banner-dot:hover {
  background-color: #ffffff;
}

.banner-dot.active {
  background-color: #ffffff;
  transform: scale(1.25);
}

.banner-dot:focus-visible {
  outline: 2px solid #ffffff;
  outline-offset: 2px;
}

/* 2. Slogan Giới Thiệu Tầm Nhìn Hệ Sinh Thái (Nằm giữa) */
.portal-intro-section {
  max-width: 860px;
  margin: 0 auto 20px;
  text-align: center;
  padding: 24px 28px;
  background-color: var(--bg-products);
  border: 1px solid var(--border-rule);
  border-radius: var(--radius-md);
}

.portal-intro-slogan {
  font-size: 1.05rem;
  line-height: 1.7;
  color: var(--text-dim);
  margin: 0;
  font-weight: 500;
}

/* 3. 3 Cổng Trọng Tâm Hệ Sinh Thái (Ecosystem Gateways) */
.portal-ecosystem-section {
  padding: 56px 0 60px;
  background-color: #ffffff;
  border-top: 1px solid var(--border-rule);
  border-bottom: 1px solid var(--border-rule);
}

.ecosystem-gateways-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  margin-top: 40px;
}

.ecosystem-card {
  display: flex;
  flex-direction: column;
  background-color: var(--bg-products);
  border: 1px solid var(--border-rule);
  border-radius: var(--radius-md);
  padding: 32px 24px 28px;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), border-color var(--transition-fast);
  position: relative;
}

.ecosystem-card:hover {
  transform: translateY(-3px);
  border-color: var(--c-career-border);
  box-shadow: 0 8px 24px rgba(9, 115, 183, 0.08);
}

.ecosystem-card-featured {
  background-color: #ffffff;
  border: 2px solid var(--c-career-base);
}

.ecosystem-emblem-wrap {
  width: 56px;
  height: 56px;
  margin-bottom: 20px;
  color: var(--c-career-base);
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--c-career-light);
  border-radius: var(--radius-md);
  border: 1px solid var(--c-career-border);
}

.ecosystem-card-featured .ecosystem-emblem-wrap {
  color: var(--c-diag-base);
  background-color: var(--c-diag-light);
  border-color: var(--c-diag-border);
}

.ecosystem-emblem-svg {
  width: 36px;
  height: 36px;
}

.ecosystem-index-tag {
  display: inline-block;
  align-self: flex-start;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--c-career-text);
  background-color: var(--c-career-light);
  padding: 3px 8px;
  border-radius: var(--radius-sm);
  margin-bottom: 12px;
}

.ecosystem-index-tag.tag-featured {
  color: var(--c-diag-text);
  background-color: var(--c-diag-light);
}

.ecosystem-card-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-main);
  margin: 0 0 12px;
  line-height: 1.4;
}

.ecosystem-card-desc {
  font-size: 0.92rem;
  line-height: 1.6;
  color: var(--text-muted);
  margin: 0 0 24px;
  flex-grow: 1;
}

.ecosystem-card-action {
  margin-top: auto;
}

.ecosystem-btn {
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: 12px 18px;
  background-color: #ffffff;
  color: var(--c-career-dark);
  border: 1px solid var(--c-career-border);
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.9rem;
  text-decoration: none;
  transition: background-color var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast);
}

.ecosystem-btn:hover {
  background-color: var(--c-career-base);
  color: #ffffff;
  border-color: var(--c-career-base);
}

.ecosystem-btn.btn-primary-featured {
  background-color: var(--c-career-base);
  color: #ffffff;
  border-color: var(--c-career-base);
}

.ecosystem-btn.btn-primary-featured:hover {
  background-color: var(--c-career-dark);
  border-color: var(--c-career-dark);
}

.ecosystem-btn:focus-visible {
  outline: 2px solid var(--c-career-base);
  outline-offset: 2px;
}

/* Subdomain Quick Links */
.ecosystem-subdomain-bar {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px dashed var(--border-rule);
  font-size: 0.8rem;
}

.subdomain-anchor {
  color: var(--c-career-base);
  text-decoration: none;
  font-weight: 600;
  transition: color var(--transition-fast);
}

.subdomain-anchor:hover {
  color: var(--c-career-dark);
  text-decoration: underline;
}

.subdomain-anchor:focus-visible {
  outline: 2px solid var(--c-career-base);
  outline-offset: 1px;
}

.subdomain-sep {
  color: var(--border-rule);
}

/* 4. Compact Highlights Gateway Section */
.portal-highlights-section {
  padding: 52px 0 64px;
  background-color: var(--bg-products);
}

.highlights-two-col {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}

.highlight-box {
  background-color: #ffffff;
  border: 1px solid var(--border-rule);
  border-radius: var(--radius-md);
  padding: 32px 28px;
  display: flex;
  flex-direction: column;
}

.highlight-tag {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--c-career-text);
  background-color: var(--c-career-light);
  padding: 3px 8px;
  border-radius: var(--radius-sm);
}

.highlight-heading {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-main);
  margin: 12px 0 10px;
}

.highlight-summary {
  font-size: 0.92rem;
  line-height: 1.6;
  color: var(--text-muted);
  margin: 0 0 20px;
  flex-grow: 1;
}

.highlight-contact-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 24px;
}

.contact-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.84rem;
  font-weight: 600;
  color: var(--text-main);
  background-color: var(--bg-products);
  border: 1px solid var(--border-rule);
  padding: 6px 12px;
  border-radius: 20px;
  text-decoration: none;
  transition: background-color var(--transition-fast), border-color var(--transition-fast), color var(--transition-fast);
}

.contact-pill:hover {
  background-color: var(--c-career-light);
  border-color: var(--c-career-border);
  color: var(--c-career-text);
}

.contact-pill:focus-visible {
  outline: 2px solid var(--c-career-base);
  outline-offset: 2px;
}

.contact-pill .pill-svg {
  flex-shrink: 0;
  color: var(--c-career-base);
  transition: transform var(--transition-fast);
}

.contact-pill:hover .pill-svg {
  transform: scale(1.1);
}

.highlight-explore-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  font-size: 0.9rem;
  color: var(--c-career-base);
  text-decoration: none;
  transition: gap var(--transition-fast), color var(--transition-fast);
  margin-top: auto;
}

.highlight-explore-link:hover {
  color: var(--c-career-dark);
  gap: 12px;
}

.highlight-explore-link:focus-visible {
  outline: 2px solid var(--c-career-base);
  outline-offset: 2px;
}

/* ==========================================================================
   Responsive Adaptations
   ========================================================================== */
@media (max-width: 1024px) {
  .ecosystem-gateways-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

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

@media (max-width: 900px) {
  .ecosystem-gateways-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .highlights-two-col {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .about-hero-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .portals-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .panel-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }

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

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

@media (max-width: 640px) {
  .header-nav {
    display: none;
  }

  .about-section, .products-section, .partners-section, .news-section, .contact-section {
    padding: 52px 0 60px;
  }

  .portal-card {
    padding: 26px 20px;
  }

  .panel-card {
    padding: 24px 20px;
  }

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

  .channel-card {
    flex-direction: column;
    align-items: flex-start;
  }

  .channel-btn {
    width: 100%;
  }

  .footer-bottom-bar {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }
}

/* Reduced Motion Preference */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}