/* ==========================================================================
   Sentinel Theme — Cybersecurity Market Research
   Premium dark-navy + electric-teal identity
   ========================================================================== */

/* --------------------------------------------------------------------------
   1a. Custom Color Palette — "Sentinel"
   --------------------------------------------------------------------------
   IMPORTANT: Selectors use `body[data-md-color-scheme]` to beat Material's
   built-in `[data-md-color-primary="indigo"]` palette rules, which otherwise
   override our --md-primary-fg-color.
   -------------------------------------------------------------------------- */

/* Light mode */
body[data-md-color-scheme="default"] {
  --md-primary-fg-color: #0B1929;
  --md-primary-fg-color--light: #14283F;
  --md-primary-fg-color--dark: #060E1A;
  --md-primary-bg-color: #ffffff;
  --md-primary-bg-color--light: #f7f8fb;

  --md-accent-fg-color: #00C9A0;
  --md-accent-fg-color--transparent: rgba(0, 201, 160, 0.1);
  --md-accent-bg-color: #ffffff;

  --md-default-fg-color: #1B1F3B;
  --md-default-fg-color--light: #3D4166;
  --md-default-fg-color--lighter: #6B6F8D;
  --md-default-fg-color--lightest: rgba(27, 31, 59, 0.12);
  --md-default-bg-color: #ffffff;
  --md-default-bg-color--light: #f7f8fb;
  --md-default-bg-color--lighter: #eff1f5;
  --md-default-bg-color--lightest: #e5e8ee;

  --md-typeset-color: #1B1F3B;
  --md-typeset-a-color: #008F72;

  --md-code-bg-color: #f0f2f7;
  --md-code-fg-color: #1B1F3B;

  --md-footer-bg-color: #0B1929;
  --md-footer-bg-color--dark: #060E1A;
  --md-footer-fg-color: rgba(255, 255, 255, 0.85);
  --md-footer-fg-color--light: rgba(255, 255, 255, 0.65);
  --md-footer-fg-color--lighter: rgba(255, 255, 255, 0.45);

  /* Brand tokens */
  --sentinel-accent: #00D4AA;
  --sentinel-accent-bright: #00E8BB;
  --sentinel-accent-hover: #00B891;
  --sentinel-accent-glow: rgba(0, 212, 170, 0.25);
  --sentinel-secondary: #6366F1;
  --sentinel-secondary-glow: rgba(99, 102, 241, 0.2);
  --sentinel-navy: #0B1929;
  --sentinel-navy-mid: #14283F;
  --sentinel-surface: #f7f8fb;
  --sentinel-border: #dde1e8;
  --sentinel-table-stripe: rgba(11, 25, 41, 0.03);
  --sentinel-table-hover: rgba(0, 212, 170, 0.07);
  --sentinel-shadow: rgba(11, 25, 41, 0.10);
  --sentinel-shadow-lg: rgba(11, 25, 41, 0.16);
}

/* Override Material's compound palette selectors for link color */
body[data-md-color-scheme="default"][data-md-color-primary] {
  --md-typeset-a-color: #008F72;
}

/* Dark mode */
body[data-md-color-scheme="slate"],
body[data-md-color-scheme="slate"][data-md-color-primary] {
  --md-primary-fg-color: #0B1929;
  --md-primary-fg-color--light: #14283F;
  --md-primary-fg-color--dark: #060E1A;
  --md-primary-bg-color: #ffffff;
  --md-primary-bg-color--light: rgba(255, 255, 255, 0.7);

  --md-accent-fg-color: #00E8BB;
  --md-accent-fg-color--transparent: rgba(0, 232, 187, 0.12);
  --md-accent-bg-color: #0D1B2A;

  --md-default-fg-color: rgba(255, 255, 255, 0.90);
  --md-default-fg-color--light: rgba(255, 255, 255, 0.68);
  --md-default-fg-color--lighter: rgba(255, 255, 255, 0.48);
  --md-default-fg-color--lightest: rgba(255, 255, 255, 0.10);
  --md-default-bg-color: #0D1B2A;
  --md-default-bg-color--light: #132337;
  --md-default-bg-color--lighter: #192D44;
  --md-default-bg-color--lightest: #1F3751;

  --md-typeset-color: rgba(255, 255, 255, 0.90);
  --md-typeset-a-color: #00E8BB;

  --md-code-bg-color: #132337;
  --md-code-fg-color: rgba(255, 255, 255, 0.90);

  --md-footer-bg-color: #060E1A;
  --md-footer-bg-color--dark: #030810;
  --md-footer-fg-color: rgba(255, 255, 255, 0.85);
  --md-footer-fg-color--light: rgba(255, 255, 255, 0.65);
  --md-footer-fg-color--lighter: rgba(255, 255, 255, 0.45);

  /* Brand tokens */
  --sentinel-accent: #00E8BB;
  --sentinel-accent-bright: #33FFDD;
  --sentinel-accent-hover: #00D4AA;
  --sentinel-accent-glow: rgba(0, 232, 187, 0.20);
  --sentinel-secondary: #818CF8;
  --sentinel-secondary-glow: rgba(129, 140, 248, 0.2);
  --sentinel-navy: #0B1929;
  --sentinel-navy-mid: #14283F;
  --sentinel-surface: #132337;
  --sentinel-border: #1F3751;
  --sentinel-table-stripe: rgba(255, 255, 255, 0.03);
  --sentinel-table-hover: rgba(0, 232, 187, 0.08);
  --sentinel-shadow: rgba(0, 0, 0, 0.35);
  --sentinel-shadow-lg: rgba(0, 0, 0, 0.50);
}

/* --------------------------------------------------------------------------
   1b. Mermaid Diagram Theming (via Material CSS variables)
   -------------------------------------------------------------------------- */

body[data-md-color-scheme="default"] {
  --md-mermaid-node-bg-color: rgba(0, 201, 160, 0.10);
  --md-mermaid-node-fg-color: #00C9A0;
  --md-mermaid-edge-color: #3D4166;
  --md-mermaid-label-fg-color: #1B1F3B;
  --md-mermaid-label-bg-color: #ffffff;
  --md-mermaid-font-family: "Inter", var(--md-text-font-family);
  /* Sequence diagram */
  --md-mermaid-sequence-actor-bg-color: rgba(0, 201, 160, 0.10);
  --md-mermaid-sequence-actor-fg-color: #00C9A0;
  --md-mermaid-sequence-actor-border-color: #00C9A0;
  --md-mermaid-sequence-actor-line-color: #3D4166;
  --md-mermaid-sequence-actorman-bg-color: rgba(0, 201, 160, 0.10);
  --md-mermaid-sequence-actorman-line-color: #3D4166;
  --md-mermaid-sequence-box-bg-color: rgba(0, 201, 160, 0.04);
  --md-mermaid-sequence-box-fg-color: #1B1F3B;
  --md-mermaid-sequence-box-line-color: #dde1e8;
  --md-mermaid-sequence-label-fg-color: #1B1F3B;
  --md-mermaid-sequence-loop-bg-color: rgba(0, 201, 160, 0.04);
  --md-mermaid-sequence-loop-border-color: #dde1e8;
  --md-mermaid-sequence-loop-fg-color: #3D4166;
  --md-mermaid-sequence-message-fg-color: #1B1F3B;
  --md-mermaid-sequence-message-line-color: #3D4166;
  --md-mermaid-sequence-note-bg-color: #f7f8fb;
  --md-mermaid-sequence-note-border-color: #dde1e8;
  --md-mermaid-sequence-note-fg-color: #1B1F3B;
  --md-mermaid-sequence-number-bg-color: #0B1929;
  --md-mermaid-sequence-number-fg-color: #ffffff;
  /* State / class diagrams */
  --md-mermaid-state-label-color: #1B1F3B;
  --md-mermaid-state-label-bg-color: #ffffff;
  --md-mermaid-class-label-color: #1B1F3B;
  --md-mermaid-class-label-bg-color: #ffffff;
}

body[data-md-color-scheme="slate"],
body[data-md-color-scheme="slate"][data-md-color-primary] {
  --md-mermaid-node-bg-color: rgba(0, 232, 187, 0.12);
  --md-mermaid-node-fg-color: #00E8BB;
  --md-mermaid-edge-color: rgba(255,255,255,0.25);
  --md-mermaid-label-fg-color: rgba(255,255,255,0.90);
  --md-mermaid-label-bg-color: #0D1B2A;
  --md-mermaid-font-family: "Inter", var(--md-text-font-family);
  /* Sequence diagram */
  --md-mermaid-sequence-actor-bg-color: rgba(0, 232, 187, 0.12);
  --md-mermaid-sequence-actor-fg-color: #00E8BB;
  --md-mermaid-sequence-actor-border-color: #00E8BB;
  --md-mermaid-sequence-actor-line-color: rgba(255,255,255,0.25);
  --md-mermaid-sequence-actorman-bg-color: rgba(0, 232, 187, 0.12);
  --md-mermaid-sequence-actorman-line-color: rgba(255,255,255,0.25);
  --md-mermaid-sequence-box-bg-color: rgba(0, 232, 187, 0.05);
  --md-mermaid-sequence-box-fg-color: rgba(255,255,255,0.90);
  --md-mermaid-sequence-box-line-color: #1F3751;
  --md-mermaid-sequence-label-fg-color: rgba(255,255,255,0.90);
  --md-mermaid-sequence-loop-bg-color: rgba(0, 232, 187, 0.05);
  --md-mermaid-sequence-loop-border-color: #1F3751;
  --md-mermaid-sequence-loop-fg-color: rgba(255,255,255,0.48);
  --md-mermaid-sequence-message-fg-color: rgba(255,255,255,0.90);
  --md-mermaid-sequence-message-line-color: rgba(255,255,255,0.25);
  --md-mermaid-sequence-note-bg-color: #132337;
  --md-mermaid-sequence-note-border-color: #1F3751;
  --md-mermaid-sequence-note-fg-color: rgba(255,255,255,0.90);
  --md-mermaid-sequence-number-bg-color: #00E8BB;
  --md-mermaid-sequence-number-fg-color: #0D1B2A;
  /* State / class diagrams */
  --md-mermaid-state-label-color: rgba(255,255,255,0.90);
  --md-mermaid-state-label-bg-color: #0D1B2A;
  --md-mermaid-class-label-color: rgba(255,255,255,0.90);
  --md-mermaid-class-label-bg-color: #0D1B2A;
}

/* --------------------------------------------------------------------------
   1c. Enhanced Typography
   -------------------------------------------------------------------------- */

.md-typeset h1,
.md-typeset h2,
.md-typeset h3,
.md-typeset h4 {
  font-family: "Space Grotesk", var(--md-text-font-family);
  font-weight: 700;
  letter-spacing: -0.02em;
}

.md-typeset h1 {
  font-size: 2.2em;
  font-weight: 800;
  margin-bottom: 0.6em;
  letter-spacing: -0.03em;
}

.md-typeset h2 {
  font-size: 1.6em;
  margin-top: 1.8em;
  padding-bottom: 0.35em;
  border-bottom: 2px solid var(--sentinel-accent);
}

.md-typeset h3 {
  font-size: 1.25em;
  margin-top: 1.5em;
}

.md-typeset h4 {
  font-size: 1.05em;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.02em;
  color: var(--md-default-fg-color--light);
}

.md-typeset p {
  line-height: 1.75;
}

/* Styled blockquotes */
.md-typeset blockquote {
  border-left: 4px solid var(--sentinel-accent);
  background: var(--md-accent-fg-color--transparent);
  padding: 0.8em 1.2em;
  border-radius: 0 8px 8px 0;
  margin: 1.2em 0;
}

.md-typeset blockquote p {
  margin: 0;
}

/* --------------------------------------------------------------------------
   1d. Table Styling
   -------------------------------------------------------------------------- */

.md-typeset table:not([class]) {
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 2px 8px var(--sentinel-shadow);
  border: 1px solid var(--sentinel-border);
  border-collapse: separate;
  border-spacing: 0;
  width: 100%;
}

.md-typeset table:not([class]) thead {
  position: sticky;
  top: 0;
  z-index: 1;
}

.md-typeset table:not([class]) th {
  background: var(--sentinel-navy);
  color: #ffffff;
  font-family: "Space Grotesk", var(--md-text-font-family);
  font-size: 0.75em;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 0.9em 1em;
  border: none;
}

.md-typeset table:not([class]) td {
  padding: 0.7em 1em;
  border-bottom: 1px solid var(--sentinel-border);
}

.md-typeset table:not([class]) tbody tr:nth-child(even) {
  background: var(--sentinel-table-stripe);
}

.md-typeset table:not([class]) tbody tr:hover {
  background: var(--sentinel-table-hover);
  transition: background 0.15s ease;
}

.md-typeset table:not([class]) tbody tr:last-child td {
  border-bottom: none;
}

/* --------------------------------------------------------------------------
   1e. Custom Admonitions (Upgraded)
   -------------------------------------------------------------------------- */

/* Shared admonition styling */
.md-typeset .admonition,
.md-typeset details {
  border-radius: 8px;
  box-shadow: 0 2px 8px var(--sentinel-shadow);
  border-width: 0 0 0 4px;
  overflow: hidden;
}

.md-typeset .admonition-title,
.md-typeset details > summary {
  font-family: "Space Grotesk", var(--md-text-font-family);
  font-weight: 600;
  letter-spacing: -0.01em;
}

/* Custom Admonition: Opportunity */
:root {
  --md-admonition-icon--opportunity: url('data:image/svg+xml;charset=utf-8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M12 2C6.48 2 2 6.48 2 12s4.48 10 10 10 10-4.48 10-10S17.52 2 12 2zm-2 15l-5-5 1.41-1.41L10 14.17l7.59-7.59L19 8l-9 9z"/></svg>');
}
.md-typeset .admonition.opportunity,
.md-typeset details.opportunity {
  border-color: #10B981;
}
.md-typeset .opportunity > .admonition-title,
.md-typeset .opportunity > summary {
  background-color: rgba(16, 185, 129, 0.1);
}
.md-typeset .opportunity > .admonition-title::before,
.md-typeset .opportunity > summary::before {
  background-color: #10B981;
  -webkit-mask-image: var(--md-admonition-icon--opportunity);
          mask-image: var(--md-admonition-icon--opportunity);
}

/* Custom Admonition: Threat */
:root {
  --md-admonition-icon--threat: url('data:image/svg+xml;charset=utf-8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M1 21h22L12 2 1 21zm12-3h-2v-2h2v2zm0-4h-2v-4h2v4z"/></svg>');
}
.md-typeset .admonition.threat,
.md-typeset details.threat {
  border-color: #EF4444;
}
.md-typeset .threat > .admonition-title,
.md-typeset .threat > summary {
  background-color: rgba(239, 68, 68, 0.1);
}
.md-typeset .threat > .admonition-title::before,
.md-typeset .threat > summary::before {
  background-color: #EF4444;
  -webkit-mask-image: var(--md-admonition-icon--threat);
          mask-image: var(--md-admonition-icon--threat);
}

/* Custom Admonition: Pain Point */
:root {
  --md-admonition-icon--pain-point: url('data:image/svg+xml;charset=utf-8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M12 2C6.48 2 2 6.48 2 12s4.48 10 10 10 10-4.48 10-10S17.52 2 12 2zm1 15h-2v-2h2v2zm0-4h-2V7h2v6z"/></svg>');
}
.md-typeset .admonition.pain-point,
.md-typeset details.pain-point {
  border-color: #F59E0B;
}
.md-typeset .pain-point > .admonition-title,
.md-typeset .pain-point > summary {
  background-color: rgba(245, 158, 11, 0.1);
}
.md-typeset .pain-point > .admonition-title::before,
.md-typeset .pain-point > summary::before {
  background-color: #F59E0B;
  -webkit-mask-image: var(--md-admonition-icon--pain-point);
          mask-image: var(--md-admonition-icon--pain-point);
}

/* Custom Admonition: Gap */
:root {
  --md-admonition-icon--gap: url('data:image/svg+xml;charset=utf-8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M11 18h2v-2h-2v2zm1-16C6.48 2 2 6.48 2 12s4.48 10 10 10 10-4.48 10-10S17.52 2 12 2zm0 18c-4.41 0-8-3.59-8-8s3.59-8 8-8 8 3.59 8 8-3.59 8-8 8zm0-14c-2.21 0-4 1.79-4 4h2c0-1.1.9-2 2-2s2 .9 2 2c0 2-3 1.75-3 5h2c0-2.25 3-2.5 3-5 0-2.21-1.79-4-4-4z"/></svg>');
}
.md-typeset .admonition.gap,
.md-typeset details.gap {
  border-color: #3B82F6;
}
.md-typeset .gap > .admonition-title,
.md-typeset .gap > summary {
  background-color: rgba(59, 130, 246, 0.1);
}
.md-typeset .gap > .admonition-title::before,
.md-typeset .gap > summary::before {
  background-color: #3B82F6;
  -webkit-mask-image: var(--md-admonition-icon--gap);
          mask-image: var(--md-admonition-icon--gap);
}

/* --------------------------------------------------------------------------
   1f. Badge/Chip Classes
   -------------------------------------------------------------------------- */

.badge {
  display: inline-block;
  padding: 0.15em 0.6em;
  font-size: 0.7em;
  font-weight: 700;
  font-family: "Space Grotesk", var(--md-text-font-family);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-radius: 999px;
  line-height: 1.6;
  vertical-align: middle;
  white-space: nowrap;
}

/* Maturity badges */
.badge-mature {
  background: rgba(16, 185, 129, 0.15);
  color: #059669;
}
[data-md-color-scheme="slate"] .badge-mature {
  background: rgba(16, 185, 129, 0.2);
  color: #34D399;
}

.badge-growing {
  background: rgba(99, 102, 241, 0.15);
  color: #4F46E5;
}
[data-md-color-scheme="slate"] .badge-growing {
  background: rgba(99, 102, 241, 0.2);
  color: #A5B4FC;
}

.badge-emerging {
  background: rgba(245, 158, 11, 0.15);
  color: #D97706;
}
[data-md-color-scheme="slate"] .badge-emerging {
  background: rgba(245, 158, 11, 0.2);
  color: #FBBF24;
}

/* Risk badges */
.badge-high {
  background: rgba(239, 68, 68, 0.15);
  color: #DC2626;
}
[data-md-color-scheme="slate"] .badge-high {
  background: rgba(239, 68, 68, 0.2);
  color: #FCA5A5;
}

.badge-medium {
  background: rgba(245, 158, 11, 0.15);
  color: #D97706;
}
[data-md-color-scheme="slate"] .badge-medium {
  background: rgba(245, 158, 11, 0.2);
  color: #FBBF24;
}

.badge-low {
  background: rgba(16, 185, 129, 0.15);
  color: #059669;
}
[data-md-color-scheme="slate"] .badge-low {
  background: rgba(16, 185, 129, 0.2);
  color: #34D399;
}

/* --------------------------------------------------------------------------
   Navigation & Header Refinements
   -------------------------------------------------------------------------- */

/* Header — deep navy with subtle bottom glow */
.md-header {
  box-shadow:
    0 2px 8px var(--sentinel-shadow),
    0 1px 0 var(--sentinel-accent-glow);
}

/* Tabs bar — subtle top border */
.md-tabs {
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

/* Active tab — teal underline indicator */
.md-tabs__link--active {
  border-bottom: 2px solid var(--sentinel-accent);
}

/* Sidebar scrollbar */
.md-sidebar__scrollwrap::-webkit-scrollbar {
  width: 4px;
}
.md-sidebar__scrollwrap::-webkit-scrollbar-thumb {
  background: var(--sentinel-accent);
  border-radius: 4px;
}

/* Active sidebar link — teal accent bar */
.md-nav__link--active {
  border-left: 3px solid var(--sentinel-accent);
  padding-left: 0.5em;
}

/* --------------------------------------------------------------------------
   Link Styling
   -------------------------------------------------------------------------- */

.md-typeset a {
  transition: color 0.2s ease, border-color 0.2s ease;
}

.md-typeset a:hover {
  color: var(--sentinel-accent-hover);
}

/* --------------------------------------------------------------------------
   Code Block Styling
   -------------------------------------------------------------------------- */

.md-typeset code {
  border-radius: 4px;
  padding: 0.1em 0.4em;
  font-size: 0.85em;
}

.md-typeset pre > code {
  border-radius: 8px;
}

/* --------------------------------------------------------------------------
   Mermaid Diagram Container
   -------------------------------------------------------------------------- */

.md-typeset .mermaid {
  margin: 1.5em 0;
  padding: 1.2em;
  background: linear-gradient(
    145deg,
    var(--md-default-bg-color--light),
    var(--md-default-bg-color--lighter)
  );
  border-radius: 12px;
  border: 1px solid var(--sentinel-border);
  box-shadow: 0 2px 12px var(--sentinel-shadow);
}

/* --------------------------------------------------------------------------
   Content Width on Large Screens
   -------------------------------------------------------------------------- */

@media screen and (min-width: 76.25em) {
  .md-content__inner {
    max-width: 52em;
  }
}

/* --------------------------------------------------------------------------
   Hero Landing Page Styles
   -------------------------------------------------------------------------- */

.hero {
  padding: 4.5em 1.5em 3.5em;
  text-align: center;
  background:
    radial-gradient(ellipse at 20% 80%, rgba(0, 212, 170, 0.08) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 20%, rgba(99, 102, 241, 0.06) 0%, transparent 50%),
    linear-gradient(160deg, #0B1929 0%, #14283F 40%, #1B3550 100%);
  color: #ffffff;
  margin: -1.2em -0.8em 2em;
  border-radius: 0 0 16px 16px;
  position: relative;
  overflow: hidden;
}

/* Subtle animated scan-line effect */
.hero::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 2px,
    rgba(0, 212, 170, 0.015) 2px,
    rgba(0, 212, 170, 0.015) 4px
  );
  pointer-events: none;
}

.hero h1 {
  font-family: "Space Grotesk", var(--md-text-font-family);
  font-size: 2.8em;
  font-weight: 800;
  letter-spacing: -0.03em;
  margin: 0 0 0.3em;
  color: #ffffff;
  border: none;
  position: relative;
}

.hero .subtitle {
  font-size: 1.2em;
  color: rgba(255, 255, 255, 0.70);
  margin-bottom: 0.3em;
  font-weight: 400;
  position: relative;
}

.hero .edition {
  display: inline-block;
  font-family: "Space Grotesk", var(--md-text-font-family);
  font-size: 0.85em;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: #00E8BB;
  border: 1px solid rgba(0, 232, 187, 0.4);
  padding: 0.3em 1em;
  border-radius: 999px;
  margin-bottom: 2em;
  position: relative;
  box-shadow: 0 0 16px rgba(0, 232, 187, 0.15);
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.2em;
  max-width: 48em;
  margin: 0 auto 2.2em;
  position: relative;
}

@media screen and (max-width: 48em) {
  .hero-stats {
    grid-template-columns: repeat(2, 1fr);
  }
  .hero h1 {
    font-size: 2em;
  }
}

.hero-stat {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 12px;
  padding: 1.2em 0.8em;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  transition: border-color 0.25s ease, box-shadow 0.25s ease;
}

.hero-stat:hover {
  border-color: rgba(0, 232, 187, 0.3);
  box-shadow: 0 0 20px rgba(0, 232, 187, 0.1);
}

.hero-stat .number {
  font-family: "Space Grotesk", var(--md-text-font-family);
  font-size: 2.2em;
  font-weight: 800;
  color: #00E8BB;
  display: block;
  line-height: 1.2;
  text-shadow: 0 0 24px rgba(0, 232, 187, 0.3);
}

.hero-stat .label {
  font-size: 0.75em;
  color: rgba(255, 255, 255, 0.55);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-top: 0.4em;
  display: block;
}

.hero-cta {
  display: flex;
  gap: 1em;
  justify-content: center;
  flex-wrap: wrap;
  position: relative;
}

.hero-cta a {
  display: inline-block;
  padding: 0.75em 2em;
  border-radius: 8px;
  font-family: "Space Grotesk", var(--md-text-font-family);
  font-weight: 600;
  font-size: 0.95em;
  text-decoration: none;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.hero-cta a:hover {
  transform: translateY(-2px);
}

.hero-cta .primary {
  background: linear-gradient(135deg, #00D4AA, #00E8BB);
  color: #0B1929;
  box-shadow: 0 4px 16px rgba(0, 212, 170, 0.3);
}

.hero-cta .primary:hover {
  box-shadow: 0 6px 24px rgba(0, 212, 170, 0.45);
}

.hero-cta .secondary {
  background: rgba(255, 255, 255, 0.06);
  color: #ffffff;
  border: 1px solid rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(4px);
}

.hero-cta .secondary:hover {
  border-color: #00E8BB;
  color: #00E8BB;
  box-shadow: 0 0 16px rgba(0, 232, 187, 0.15);
}

/* --------------------------------------------------------------------------
   Section Hero Banners
   -------------------------------------------------------------------------- */

.section-hero {
  padding: 2em 1.5em;
  background:
    radial-gradient(ellipse at 0% 100%, rgba(0, 212, 170, 0.06) 0%, transparent 50%),
    linear-gradient(145deg, #0B1929 0%, #14283F 100%);
  color: #ffffff;
  border-radius: 12px;
  margin-bottom: 2em;
  border: 1px solid rgba(255, 255, 255, 0.06);
  box-shadow: 0 4px 16px var(--sentinel-shadow-lg);
}

.section-hero h1 {
  color: #ffffff;
  border: none;
  margin: 0 0 0.3em;
}

.section-hero p {
  color: rgba(255, 255, 255, 0.70);
  margin: 0;
}

/* --------------------------------------------------------------------------
   Card Grid
   -------------------------------------------------------------------------- */

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.2em;
  margin: 1.5em 0;
}

.card {
  background: var(--md-default-bg-color);
  border: 1px solid var(--sentinel-border);
  border-radius: 12px;
  padding: 1.5em;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
  text-decoration: none;
  color: var(--md-default-fg-color);
  display: block;
  position: relative;
}

.card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--sentinel-accent), var(--sentinel-secondary));
  border-radius: 12px 12px 0 0;
  opacity: 0;
  transition: opacity 0.2s ease;
}

.card:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 24px var(--sentinel-shadow-lg);
  border-color: var(--sentinel-accent);
}

.card:hover::before {
  opacity: 1;
}

.card .card-icon {
  font-size: 1.8em;
  margin-bottom: 0.5em;
  display: block;
}

.card .card-title {
  font-family: "Space Grotesk", var(--md-text-font-family);
  font-weight: 700;
  font-size: 1.1em;
  margin-bottom: 0.4em;
  color: var(--md-default-fg-color);
}

.card .card-desc {
  font-size: 0.85em;
  color: var(--md-default-fg-color--light);
  line-height: 1.5;
}

.card .card-meta {
  margin-top: 0.8em;
  font-size: 0.75em;
  color: var(--md-default-fg-color--lighter);
}

/* --------------------------------------------------------------------------
   Edition Banner
   -------------------------------------------------------------------------- */

.edition-banner {
  background: linear-gradient(90deg, #060E1A, #0B1929, #060E1A);
  color: #00E8BB;
  text-align: center;
  padding: 0.4em 1em;
  font-family: "Space Grotesk", var(--md-text-font-family);
  font-size: 0.72em;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  text-shadow: 0 0 12px rgba(0, 232, 187, 0.3);
}

/* --------------------------------------------------------------------------
   Accent Glow Utility — for key interactive elements
   -------------------------------------------------------------------------- */

/* Subtle teal glow on focused search */
.md-search__input:focus {
  box-shadow: 0 0 0 3px var(--sentinel-accent-glow);
}

/* TOC active indicator */
.md-nav--secondary .md-nav__link--active {
  color: var(--sentinel-accent);
}

/* --------------------------------------------------------------------------
   Print Styles (browser Ctrl+P)
   Full PDF print styling is injected by scripts/generate_pdf.py
   -------------------------------------------------------------------------- */

@media print {
  .md-header,
  .md-tabs,
  .md-sidebar,
  .md-footer,
  .md-search,
  .md-top,
  .md-banner,
  .edition-banner,
  .md-dialog,
  .md-progress {
    display: none !important;
  }

  .md-content {
    margin: 0 !important;
    max-width: 100% !important;
  }

  .md-content__inner {
    max-width: 100% !important;
  }

  /* Force light mode for browser print */
  body {
    background: #ffffff !important;
    color: #1B1F3B !important;
  }

  h1 { page-break-before: always; }
  h1:first-of-type { page-break-before: avoid; }
  h2, h3, h4 { page-break-after: avoid; }
  table, .admonition, details, .mermaid, pre { page-break-inside: avoid; }

  .admonition, details, table, .card, .mermaid {
    box-shadow: none !important;
  }
}