/* ==========================================================================
   MAYA9 Platform Overview Site (overview.mayanine.com)
   Strictly complies with dev-docs/design/UI_MASTER.md and tokens.css
   Theme: Light-only | Typography: Inter + Noto Sans Thai | Responsive: 320px+
   ========================================================================== */

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  color-scheme: light;
  overflow-x: clip;
}

body {
  font-family: var(--m9-font-sans);
  background-color: var(--m9-page);
  color: var(--m9-text);
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: clip;
  display: flex;
  flex-direction: column;
}

img, svg {
  display: block;
  max-width: 100%;
}

a {
  color: inherit;
  text-decoration: none;
}

button {
  font-family: inherit;
  font-size: inherit;
  border: none;
  background: none;
  cursor: pointer;
}

/* Accessible focus ring */
:focus-visible {
  outline: var(--m9-focus-width) solid var(--m9-ring);
  outline-offset: var(--m9-focus-offset);
}

/* --------------------------------------------------------------------------
   2. Layout Container & Utilities
   -------------------------------------------------------------------------- */
:root {
  --site-max-width: 1240px;
  --header-height: 72px;
}

@media (max-width: 820px) {
  :root {
    --header-height: 64px;
  }
}

.site-wrap {
  width: 100%;
  max-width: var(--site-max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: clamp(16px, 3vw, 32px);
  padding-right: clamp(16px, 3vw, 32px);
}

.site-main {
  flex: 1 0 auto;
  display: flex;
  flex-direction: column;
  gap: clamp(48px, 6vw, 80px);
  padding-bottom: clamp(64px, 8vw, 100px);
}

/* --------------------------------------------------------------------------
   3. Header & Navigation (Sticky Topbar)
   -------------------------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  height: var(--header-height);
  background-color: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--m9-border);
  box-shadow: 0 2px 10px rgba(7, 26, 58, 0.04);
}

.header-inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--m9-space-4);
}

.header-brand {
  display: flex;
  align-items: center;
  gap: var(--m9-space-3);
  min-height: 44px;
}

.brand-logo-img {
  height: 38px;
  width: auto;
  object-fit: contain;
}

.brand-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--m9-space-1);
  padding: 4px 10px;
  font-size: 12px;
  font-weight: 700;
  color: var(--m9-primary);
  background-color: var(--m9-surface-accent);
  border: 1px solid var(--m9-border);
  border-radius: var(--m9-radius-pill);
  line-height: 1;
  white-space: nowrap;
}

.header-nav {
  display: flex;
  align-items: center;
  gap: var(--m9-space-1);
}

.nav-link {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 var(--m9-space-3);
  font-size: 14px;
  font-weight: 600;
  color: var(--m9-text-secondary);
  border-radius: var(--m9-radius-md);
  transition: color 0.15s ease, background-color 0.15s ease;
  white-space: nowrap;
}

.nav-link:hover {
  color: var(--m9-primary);
  background-color: var(--m9-surface-soft);
}

.nav-link.active {
  color: var(--m9-primary);
  background-color: var(--m9-surface-accent);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: var(--m9-space-2-5);
}

.btn-header-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--m9-space-1-5);
  min-height: 44px;
  padding: 0 18px;
  font-size: 14px;
  font-weight: 700;
  color: var(--m9-on-primary);
  background-color: var(--m9-primary);
  border-radius: var(--m9-radius-lg);
  box-shadow: var(--m9-shadow-cta);
  transition: transform 0.15s ease, background-color 0.15s ease;
  white-space: nowrap;
}

.btn-header-cta:hover {
  background-color: #1d4ed8;
  transform: translateY(-1px);
}

/* Mobile Menu Toggle Button (Min 44x44px touch target) */
.mobile-nav-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  padding: 0;
  color: var(--m9-brand-navy);
  background: var(--m9-surface);
  border: 1px solid var(--m9-border);
  border-radius: var(--m9-radius-md);
}

/* Mobile Drawer Overlay */
.mobile-drawer-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background-color: rgba(7, 26, 58, 0.5);
  z-index: 90;
  opacity: 0;
  transition: opacity 0.2s ease;
}

.mobile-drawer-overlay.open {
  display: block;
  opacity: 1;
}

/* Mobile Drawer Sheet */
.mobile-drawer {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: min(320px, 86vw);
  background-color: var(--m9-surface);
  z-index: 100;
  box-shadow: var(--m9-shadow-popover);
  transform: translateX(100%);
  visibility: hidden;
  pointer-events: none;
  transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1), visibility 0.25s;
  display: flex;
  flex-direction: column;
  padding: var(--m9-space-5);
  overflow-y: auto;
}

.mobile-drawer.open {
  transform: translateX(0);
  visibility: visible;
  pointer-events: auto;
}

.drawer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: var(--m9-space-4);
  border-bottom: 1px solid var(--m9-border);
  margin-bottom: var(--m9-space-4);
}

.drawer-close {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  color: var(--m9-text-secondary);
  border-radius: var(--m9-radius-md);
}

.drawer-nav-list {
  display: flex;
  flex-direction: column;
  gap: var(--m9-space-2);
}

.drawer-link {
  display: flex;
  align-items: center;
  gap: var(--m9-space-3);
  min-height: 44px;
  padding: 0 var(--m9-space-3);
  font-size: 15px;
  font-weight: 600;
  color: var(--m9-text);
  border-radius: var(--m9-radius-lg);
}

.drawer-link:hover, .drawer-link:active {
  background-color: var(--m9-surface-accent);
  color: var(--m9-primary);
}

.drawer-footer {
  margin-top: auto;
  padding-top: var(--m9-space-4);
  border-top: 1px solid var(--m9-border);
  display: flex;
  flex-direction: column;
  gap: var(--m9-space-3);
}

@media (max-width: 820px) {
  .header-nav {
    display: none;
  }
  .btn-header-cta {
    display: none;
  }
  .mobile-nav-toggle {
    display: inline-flex;
  }
}

@media (max-width: 560px) {
  .brand-badge {
    display: none;
  }
}

/* --------------------------------------------------------------------------
   4. Hero Section
   -------------------------------------------------------------------------- */
.hero-section {
  padding-top: clamp(32px, 5vw, 64px);
}

.hero-card {
  position: relative;
  background-color: var(--m9-surface);
  border: 1px solid var(--m9-border);
  border-radius: var(--m9-radius-2xl);
  box-shadow: var(--m9-shadow-surface);
  padding: clamp(24px, 5vw, 56px);
  overflow: hidden;
}

/* Subtle brand gradient line on top border */
.hero-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 5px;
  background: var(--m9-gradient-brand);
}

.hero-eyebrow-row {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--m9-space-2-5);
  margin-bottom: var(--m9-space-4);
}

.eyebrow-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--m9-primary);
  background-color: var(--m9-surface-accent);
  border: 1px solid rgba(59, 130, 246, 0.25);
  border-radius: var(--m9-radius-pill);
  line-height: 1;
}

.eyebrow-meta {
  font-size: 13px;
  font-weight: 600;
  color: var(--m9-text-muted);
}

/* Single H1 strictly formatted */
.hero-title {
  font-size: clamp(28px, 4.2vw, 46px);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.03em;
  color: var(--m9-brand-navy);
  margin-bottom: var(--m9-space-3);
}

.hero-subtitle {
  font-size: clamp(18px, 2.3vw, 22px);
  font-weight: 700;
  color: var(--m9-primary);
  line-height: 1.4;
  margin-bottom: var(--m9-space-4);
}

.hero-lead {
  font-size: clamp(15px, 1.4vw, 17px);
  color: var(--m9-text-secondary);
  line-height: 1.65;
  max-width: 980px;
  margin-bottom: var(--m9-space-6);
}

/* Concept Highlight Banner */
.hero-concept-box {
  background: var(--m9-surface-soft);
  border: 1px solid var(--m9-border);
  border-left: 4px solid var(--m9-blue);
  border-radius: var(--m9-radius-xl);
  padding: var(--m9-space-4) var(--m9-space-5);
  margin-bottom: var(--m9-space-6);
}

.hero-concept-title {
  display: inline-flex;
  align-items: center;
  gap: var(--m9-space-1-5);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--m9-primary);
  margin-bottom: var(--m9-space-1-5);
}

.hero-concept-text {
  font-size: clamp(15px, 1.6vw, 18px);
  font-weight: 700;
  color: var(--m9-brand-navy);
  line-height: 1.5;
}

/* Hero Key Pillars / Stat Chips */
.hero-stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--m9-space-3);
}

.hero-stat-card {
  background-color: var(--m9-surface);
  border: 1px solid var(--m9-border);
  border-radius: var(--m9-radius-lg);
  padding: var(--m9-space-3-5);
  display: flex;
  align-items: flex-start;
  gap: var(--m9-space-3);
  transition: border-color 0.15s ease;
}

.hero-stat-card:hover {
  border-color: var(--m9-blue);
}

.hero-stat-icon {
  flex-shrink: 0;
  width: 36px;
  height: 36px;
  border-radius: var(--m9-radius-md);
  background-color: var(--m9-surface-accent);
  color: var(--m9-primary);
  display: grid;
  place-items: center;
}

.hero-stat-content {
  min-width: 0;
}

.hero-stat-number {
  font-size: 18px;
  font-weight: 800;
  color: var(--m9-brand-navy);
  line-height: 1.2;
}

.hero-stat-label {
  font-size: 13px;
  color: var(--m9-text-muted);
  line-height: 1.35;
  margin-top: 2px;
}

@media (max-width: 1120px) {
  .hero-stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 560px) {
  .hero-stats-grid {
    grid-template-columns: 1fr;
  }
}

/* --------------------------------------------------------------------------
   5. Section Header Common Pattern
   -------------------------------------------------------------------------- */
.m9-section {
  scroll-margin-top: calc(var(--header-height) + 20px);
}

.m9-section-header {
  margin-bottom: var(--m9-space-6);
}

.section-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--m9-primary);
  margin-bottom: var(--m9-space-2);
}

.section-title {
  font-size: clamp(22px, 2.8vw, 32px);
  font-weight: 800;
  color: var(--m9-brand-navy);
  line-height: 1.25;
  letter-spacing: -0.02em;
  margin-bottom: var(--m9-space-2);
}

.section-desc {
  font-size: 15px;
  color: var(--m9-text-secondary);
  line-height: 1.6;
  max-width: 820px;
}

/* --------------------------------------------------------------------------
   6. Table: 8 Core Features Matrix (Summary)
   -------------------------------------------------------------------------- */
.table-card {
  background-color: var(--m9-surface);
  border: 1px solid var(--m9-border);
  border-radius: var(--m9-radius-xl);
  box-shadow: var(--m9-shadow-surface);
  overflow: hidden;
}

.table-scroll-wrapper {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  position: relative;
}

.m9-feature-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  min-width: 760px;
}

.m9-feature-table th {
  background-color: var(--m9-surface-soft);
  color: var(--m9-brand-navy);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.03em;
  padding: 14px 18px;
  border-bottom: 1px solid var(--m9-border);
  white-space: nowrap;
}

.m9-feature-table td {
  padding: 16px 18px;
  font-size: 14px;
  line-height: 1.5;
  border-bottom: 1px solid var(--m9-border-soft);
  vertical-align: middle;
}

.m9-feature-table tr:last-child td {
  border-bottom: none;
}

.m9-feature-table tr:hover td {
  background-color: var(--m9-row-hover);
}

.col-feature-name {
  font-weight: 700;
  color: var(--m9-brand-navy);
  white-space: nowrap;
}

.feature-badge-cell {
  display: inline-flex;
  align-items: center;
  gap: var(--m9-space-2);
}

.feature-cell-icon {
  width: 28px;
  height: 28px;
  border-radius: var(--m9-radius-sm);
  background-color: var(--m9-surface-accent);
  color: var(--m9-primary);
  display: grid;
  place-items: center;
  flex-shrink: 0;
}

.feature-role-badge {
  display: inline-block;
  padding: 4px 10px;
  font-size: 13px;
  font-weight: 700;
  color: var(--m9-text);
  background-color: var(--m9-surface-secondary);
  border-radius: var(--m9-radius-md);
  border: 1px solid var(--m9-border);
  white-space: nowrap;
}

.revenue-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 10px;
  font-size: 12px;
  font-weight: 700;
  border-radius: var(--m9-radius-pill);
  line-height: 1.3;
}

.revenue-badge.success {
  background-color: var(--m9-success-bg);
  color: var(--m9-success);
  border: 1px solid rgba(5, 150, 105, 0.25);
}

.revenue-badge.info {
  background-color: var(--m9-info-bg);
  color: var(--m9-info);
  border: 1px solid rgba(37, 99, 235, 0.25);
}

.revenue-badge.warning {
  background-color: var(--m9-warning-bg);
  color: var(--m9-warning);
  border: 1px solid rgba(245, 158, 11, 0.3);
}

.revenue-badge.neutral {
  background-color: var(--m9-neutral-bg);
  color: var(--m9-neutral);
  border: 1px solid rgba(100, 116, 139, 0.25);
}

.table-caption-bar {
  padding: 12px 18px;
  background-color: var(--m9-surface-soft);
  border-top: 1px solid var(--m9-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--m9-space-2);
  font-size: 13px;
  color: var(--m9-text-muted);
}

/* --------------------------------------------------------------------------
   7. Section: Feature Deep-Dive (8 Cards Grid)
   -------------------------------------------------------------------------- */
.feature-cards-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--m9-space-5);
}

@media (max-width: 820px) {
  .feature-cards-grid {
    grid-template-columns: 1fr;
  }
}

.detail-card {
  background-color: var(--m9-surface);
  border: 1px solid var(--m9-border);
  border-radius: var(--m9-radius-xl);
  box-shadow: var(--m9-shadow-surface);
  padding: clamp(20px, 3vw, 28px);
  display: flex;
  flex-direction: column;
  transition: transform 0.15s ease, box-shadow 0.15s ease, border-color 0.15s ease;
}

.detail-card:hover {
  transform: translateY(-2px);
  border-color: rgba(59, 130, 246, 0.4);
  box-shadow: 0 8px 24px rgba(7, 26, 58, 0.08);
}

.detail-card-header {
  display: flex;
  align-items: flex-start;
  gap: var(--m9-space-3);
  margin-bottom: var(--m9-space-4);
  padding-bottom: var(--m9-space-3-5);
  border-bottom: 1px solid var(--m9-border-soft);
}

.detail-card-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--m9-radius-lg);
  background-color: var(--m9-surface-accent);
  color: var(--m9-primary);
  display: grid;
  place-items: center;
  flex-shrink: 0;
}

.detail-card-headings {
  flex: 1;
  min-width: 0;
}

.detail-card-num {
  font-size: 12px;
  font-weight: 800;
  color: var(--m9-primary);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.detail-card-title {
  font-size: 19px;
  font-weight: 800;
  color: var(--m9-brand-navy);
  line-height: 1.3;
}

.detail-card-body {
  display: flex;
  flex-direction: column;
  gap: var(--m9-space-3-5);
  flex: 1;
}

.detail-block {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.detail-label-tag {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 12px;
  font-weight: 700;
  color: var(--m9-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.detail-label-tag.concept {
  color: var(--m9-info-strong);
}

.detail-label-tag.value {
  color: var(--m9-success-strong);
}

.detail-label-tag.revenue {
  color: var(--m9-warning-strong);
}

.detail-text {
  font-size: 14px;
  color: var(--m9-text);
  line-height: 1.6;
}

.sub-value-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-top: 4px;
  padding-left: var(--m9-space-1);
}

.sub-value-item {
  font-size: 14px;
  color: var(--m9-text);
  line-height: 1.55;
}

.sub-value-title {
  font-weight: 700;
  color: var(--m9-brand-navy);
}

/* Explicit Sandbox/Demo & Honest Disclaimers */
.sandbox-notice-box {
  margin-top: var(--m9-space-3);
  background-color: var(--m9-warning-bg);
  border: 1px solid var(--m9-warning-strong);
  border-radius: var(--m9-radius-md);
  padding: 10px 14px;
  display: flex;
  align-items: flex-start;
  gap: var(--m9-space-2);
}

.sandbox-notice-icon {
  color: var(--m9-warning-strong);
  flex-shrink: 0;
  margin-top: 2px;
}

.sandbox-notice-text {
  font-size: 13px;
  font-weight: 600;
  color: var(--m9-warning);
  line-height: 1.5;
}

/* --------------------------------------------------------------------------
   8. Section: Architectural & Engineering Strength (5 Pillars)
   -------------------------------------------------------------------------- */
.arch-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--m9-space-4);
}

.arch-card {
  background-color: var(--m9-surface);
  border: 1px solid var(--m9-border);
  border-radius: var(--m9-radius-xl);
  box-shadow: var(--m9-shadow-surface);
  padding: var(--m9-space-5);
  display: flex;
  flex-direction: column;
  gap: var(--m9-space-3);
  transition: transform 0.15s ease, border-color 0.15s ease;
}

.arch-card:hover {
  transform: translateY(-2px);
  border-color: var(--m9-blue);
}

/* Let cards span nicely: first 3 on top, bottom 2 span 1.5fr or balanced */
@media (min-width: 1121px) {
  .arch-grid {
    grid-template-columns: repeat(6, 1fr);
  }
  .arch-card:nth-child(1),
  .arch-card:nth-child(2),
  .arch-card:nth-child(3) {
    grid-column: span 2;
  }
  .arch-card:nth-child(4),
  .arch-card:nth-child(5) {
    grid-column: span 3;
  }
}

@media (max-width: 1120px) and (min-width: 821px) {
  .arch-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .arch-card:nth-child(5) {
    grid-column: span 2;
  }
}

@media (max-width: 820px) {
  .arch-grid {
    grid-template-columns: 1fr;
  }
}

.arch-icon-box {
  width: 44px;
  height: 44px;
  border-radius: var(--m9-radius-lg);
  background-color: var(--m9-surface-accent);
  color: var(--m9-primary);
  display: grid;
  place-items: center;
}

.arch-title {
  font-size: 17px;
  font-weight: 800;
  color: var(--m9-brand-navy);
  line-height: 1.35;
}

.arch-desc {
  font-size: 14px;
  color: var(--m9-text-secondary);
  line-height: 1.6;
}

/* --------------------------------------------------------------------------
   9. Section: Revenue Model (2 Pillars + 6 Streams Table)
   -------------------------------------------------------------------------- */
.revenue-pillars-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--m9-space-4);
  margin-bottom: var(--m9-space-6);
}

@media (max-width: 820px) {
  .revenue-pillars-grid {
    grid-template-columns: 1fr;
  }
}

.revenue-pillar-card {
  background-color: var(--m9-surface);
  border: 1px solid var(--m9-border);
  border-radius: var(--m9-radius-xl);
  box-shadow: var(--m9-shadow-surface);
  padding: var(--m9-space-5);
  display: flex;
  align-items: flex-start;
  gap: var(--m9-space-4);
}

.revenue-pillar-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--m9-radius-lg);
  background-color: var(--m9-surface-accent);
  color: var(--m9-primary);
  display: grid;
  place-items: center;
  flex-shrink: 0;
}

.revenue-pillar-title {
  font-size: 17px;
  font-weight: 800;
  color: var(--m9-brand-navy);
  margin-bottom: 4px;
}

.revenue-pillar-desc {
  font-size: 14px;
  color: var(--m9-text-secondary);
  line-height: 1.55;
}

/* Status Badge for Revenue Streams */
.stream-status-badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 4px 10px;
  font-size: 12px;
  font-weight: 700;
  border-radius: var(--m9-radius-pill);
  line-height: 1.3;
  white-space: nowrap;
}

.stream-status-badge.ready {
  background-color: var(--m9-success-bg);
  color: var(--m9-success);
  border: 1px solid var(--m9-success-strong);
}

.stream-status-badge.designed {
  background-color: var(--m9-info-bg);
  color: var(--m9-info);
  border: 1px solid var(--m9-info-strong);
}

.stream-status-badge.roadmap {
  background-color: var(--m9-surface-secondary);
  color: var(--m9-text-muted);
  border: 1px solid var(--m9-border);
}

/* Pricing Disclaimer Box */
.pricing-disclaimer-card {
  margin-top: var(--m9-space-4);
  background-color: var(--m9-surface-soft);
  border: 1px solid var(--m9-border);
  border-radius: var(--m9-radius-lg);
  padding: var(--m9-space-3-5) var(--m9-space-4);
  font-size: 13px;
  color: var(--m9-text-muted);
  line-height: 1.55;
  display: flex;
  align-items: center;
  gap: var(--m9-space-2-5);
}

/* --------------------------------------------------------------------------
   10. Section: Value by User Persona (6 Groups Grid)
   -------------------------------------------------------------------------- */
.persona-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--m9-space-4);
}

@media (max-width: 1120px) {
  .persona-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 560px) {
  .persona-grid {
    grid-template-columns: 1fr;
  }
}

.persona-card {
  background-color: var(--m9-surface);
  border: 1px solid var(--m9-border);
  border-radius: var(--m9-radius-xl);
  box-shadow: var(--m9-shadow-surface);
  padding: var(--m9-space-5);
  display: flex;
  flex-direction: column;
  gap: var(--m9-space-3);
  transition: transform 0.15s ease, border-color 0.15s ease;
}

.persona-card:hover {
  transform: translateY(-2px);
  border-color: var(--m9-blue);
}

.persona-header {
  display: flex;
  align-items: center;
  gap: var(--m9-space-3);
}

.persona-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--m9-radius-lg);
  background-color: var(--m9-surface-accent);
  color: var(--m9-primary);
  display: grid;
  place-items: center;
  flex-shrink: 0;
}

.persona-title {
  font-size: 16px;
  font-weight: 800;
  color: var(--m9-brand-navy);
  line-height: 1.3;
}

.persona-text {
  font-size: 14px;
  color: var(--m9-text);
  line-height: 1.6;
}

/* --------------------------------------------------------------------------
   11. Section: Closing Vision & CTA Section
   -------------------------------------------------------------------------- */
.closing-card {
  position: relative;
  background-color: var(--m9-surface);
  border: 1px solid var(--m9-border);
  border-radius: var(--m9-radius-2xl);
  box-shadow: var(--m9-shadow-surface);
  padding: clamp(28px, 5vw, 60px);
  text-align: center;
  overflow: hidden;
}

.closing-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--m9-gradient-brand);
}

.closing-title {
  font-size: clamp(24px, 3.2vw, 36px);
  font-weight: 800;
  color: var(--m9-brand-navy);
  line-height: 1.3;
  margin-bottom: var(--m9-space-3);
}

.closing-desc {
  font-size: clamp(15px, 1.4vw, 17px);
  color: var(--m9-text-secondary);
  line-height: 1.65;
  max-width: 820px;
  margin-left: auto;
  margin-right: auto;
  margin-bottom: var(--m9-space-6);
}

.closing-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: var(--m9-space-3);
}

.btn-primary-action {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--m9-space-2);
  min-height: 48px;
  padding: 0 24px;
  font-size: 15px;
  font-weight: 700;
  color: var(--m9-on-primary);
  background-color: var(--m9-primary);
  border-radius: var(--m9-radius-lg);
  box-shadow: var(--m9-shadow-cta);
  transition: transform 0.15s ease, background-color 0.15s ease;
}

.btn-primary-action:hover {
  background-color: #1d4ed8;
  transform: translateY(-1px);
}

.btn-secondary-action {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--m9-space-2);
  min-height: 48px;
  padding: 0 22px;
  font-size: 15px;
  font-weight: 700;
  color: var(--m9-brand-navy);
  background-color: var(--m9-surface);
  border: 1px solid var(--m9-border);
  border-radius: var(--m9-radius-lg);
  transition: background-color 0.15s ease, border-color 0.15s ease, transform 0.15s ease;
}

.btn-secondary-action:hover {
  background-color: var(--m9-surface-soft);
  border-color: var(--m9-blue);
  transform: translateY(-1px);
}

@media (max-width: 560px) {
  .closing-actions {
    flex-direction: column;
    width: 100%;
  }
  .btn-primary-action,
  .btn-secondary-action {
    width: 100%;
  }
}

/* --------------------------------------------------------------------------
   12. Footer & Disclaimers
   -------------------------------------------------------------------------- */
.site-footer {
  background-color: var(--m9-surface);
  border-top: 1px solid var(--m9-border);
  padding: clamp(36px, 5vw, 56px) 0 32px;
  margin-top: auto;
}

.footer-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: var(--m9-space-6);
  padding-bottom: var(--m9-space-6);
  border-bottom: 1px solid var(--m9-border-soft);
}

.footer-brand-col {
  max-width: 440px;
}

.footer-logo {
  height: 36px;
  width: auto;
  object-fit: contain;
  margin-bottom: var(--m9-space-3);
}

.footer-brand-desc {
  font-size: 14px;
  color: var(--m9-text-secondary);
  line-height: 1.6;
}

.footer-nav-col {
  display: flex;
  flex-direction: column;
  gap: var(--m9-space-2);
}

.footer-nav-title {
  font-size: 13px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--m9-brand-navy);
  margin-bottom: var(--m9-space-1);
}

.footer-nav-link {
  font-size: 14px;
  color: var(--m9-text-secondary);
  min-height: 36px;
  display: inline-flex;
  align-items: center;
  transition: color 0.15s ease;
}

.footer-nav-link:hover {
  color: var(--m9-primary);
}

.footer-disclaimers {
  padding: var(--m9-space-5) 0;
  border-bottom: 1px solid var(--m9-border-soft);
  display: flex;
  flex-direction: column;
  gap: var(--m9-space-2-5);
}

.disclaimer-item {
  font-size: 12px;
  color: var(--m9-text-muted);
  line-height: 1.6;
}

.footer-bottom {
  padding-top: var(--m9-space-5);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--m9-space-3);
  font-size: 13px;
  color: var(--m9-text-muted);
}

/* Back to Top floating button */
.btn-back-to-top {
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: 44px;
  height: 44px;
  border-radius: var(--m9-radius-pill);
  background-color: var(--m9-surface);
  color: var(--m9-brand-navy);
  border: 1px solid var(--m9-border);
  box-shadow: 0 4px 14px rgba(7, 26, 58, 0.12);
  display: grid;
  place-items: center;
  z-index: 40;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.2s ease, visibility 0.2s ease, transform 0.15s ease;
}

.btn-back-to-top.visible {
  opacity: 1;
  visibility: visible;
}

.btn-back-to-top:hover {
  transform: translateY(-2px);
  border-color: var(--m9-primary);
  color: var(--m9-primary);
}

/* Reduced motion preference */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}