/* ============================================================
   Vault-K-NO — Institutional Theme
   Serif typography · Dark gray · Clean whites
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Lora:ital,wght@0,400;0,500;0,600;0,700;1,400;1,500&family=Libre+Baskerville:ital,wght@0,400;0,700;1,400&family=JetBrains+Mono:wght@400;500&display=swap');

/* ── Colour tokens ────────────────────────────────────────── */
:root {
  --ev-navy:      #2a2a2a;
  --ev-navy-mid:  #3d3d3d;
  --ev-navy-soft: #525252;
  --ev-gold:      #b89a5a;
  --ev-gold-lt:   #d4b97a;
  --ev-rule:      #d4d4d0;
  --ev-bg:        #fafaf8;
  --ev-surface:   #ffffff;
  --ev-text:      #1c1c1c;
  --ev-muted:     #6b6b6b;
  --ev-code-bg:   #f2f2f0;
}

[data-md-color-scheme="slate"] {
  --ev-bg:       #111827;
  --ev-surface:  #1a2335;
  --ev-text:     #e8ecf4;
  --ev-muted:    #8a94a8;
  --ev-rule:     #2a3a55;
  --ev-code-bg:  #1e2d44;
}

/* ── Material overrides ───────────────────────────────────── */
[data-md-color-scheme="default"] {
  --md-primary-fg-color:        var(--ev-navy);
  --md-primary-fg-color--light: var(--ev-navy-soft);
  --md-primary-fg-color--dark:  #111111;
  --md-primary-bg-color:        #ffffff;
  --md-accent-fg-color:         var(--ev-gold);
  --md-default-bg-color:        var(--ev-bg);
  --md-default-fg-color:        var(--ev-text);
  --md-default-fg-color--light: var(--ev-muted);
}

[data-md-color-scheme="slate"] {
  --md-primary-fg-color:        #3a3a3a;
  --md-primary-fg-color--light: #4d4d4d;
  --md-primary-fg-color--dark:  #1a1a1a;
  --md-primary-bg-color:        #f0f0ee;
  --md-accent-fg-color:         var(--ev-gold-lt);
  --md-default-bg-color:        var(--ev-bg);
  --md-default-fg-color:        var(--ev-text);
}

/* ── Global typography ────────────────────────────────────── */
body, .md-typeset {
  font-family: 'Lora', Georgia, 'Times New Roman', serif;
  font-size: 16px;
  line-height: 1.75;
  color: var(--ev-text);
  -webkit-font-smoothing: antialiased;
}

/* Headings — Libre Baskerville for stronger weight contrast */
.md-typeset h1,
.md-typeset h2,
.md-typeset h3,
.md-typeset h4 {
  font-family: 'Libre Baskerville', Georgia, serif;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--ev-navy);
}

[data-md-color-scheme="slate"] .md-typeset h1,
[data-md-color-scheme="slate"] .md-typeset h2,
[data-md-color-scheme="slate"] .md-typeset h3,
[data-md-color-scheme="slate"] .md-typeset h4 {
  color: #f0f0ee;
}

.md-typeset h1 {
  font-size: 2rem;
  border-bottom: 2px solid var(--ev-navy);
  padding-bottom: 0.4em;
  margin-bottom: 1em;
}

[data-md-color-scheme="slate"] .md-typeset h1 {
  border-bottom-color: var(--ev-rule);
}

.md-typeset h2 {
  font-size: 1.35rem;
  border-bottom: 1px solid var(--ev-rule);
  padding-bottom: 0.25em;
  margin-top: 2em;
}

.md-typeset h3 {
  font-size: 1.1rem;
  margin-top: 1.6em;
}

/* ── Site header ──────────────────────────────────────────── */
.md-header {
  background-color: var(--ev-navy);
  box-shadow: 0 1px 4px rgba(0,0,0,0.25);
}

.md-header__title {
  font-family: 'Libre Baskerville', Georgia, serif;
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.02em;
}

/* Hide header logo entirely */
.md-header__button.md-logo {
  display: none;
}

/* Sidebar nav title — image fills full width */
.md-nav__title {
  padding: 0;
  margin: 0;
  background: var(--ev-bg) !important;
  color: var(--ev-text);
  box-shadow: none;
  overflow: hidden;
}

.md-nav__title .md-nav__button.md-logo {
  display: none;
}

.md-nav__logo-img {
  display: block;
  width: 100%;
  height: auto;
  padding: 0;
  margin: 0;
}

/* ── Left navigation sidebar ─────────────────────────────── */
.md-nav {
  font-family: 'Lora', Georgia, serif;
  font-size: 0.82rem;
}

/* ── L1: top-level section titles ───────────────────────── */
.md-nav--primary > .md-nav__list > .md-nav__item > .md-nav__link,
.md-nav--primary > .md-nav__list > .md-nav__item > .md-nav__toggle ~ .md-nav__link {
  font-family: 'Libre Baskerville', Georgia, serif;
  font-weight: 700;
  font-size: 0.82rem;
  color: var(--ev-text);
  padding: 0.28rem 0.6rem;
  padding-left: 0.6rem;
  margin-top: 0.25rem;
  border-radius: 3px;
  letter-spacing: 0;
  text-transform: none;
}

/* Section label above grouped items */
.md-nav--primary .md-nav__title {
  font-family: 'Libre Baskerville', Georgia, serif;
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ev-muted);
  padding: 0.6rem 0.6rem 0.2rem;
}

/* ── L2: items directly under a section ─────────────────── */
.md-nav--primary .md-nav__item .md-nav__item > .md-nav__link {
  padding: 0.22rem 0.6rem 0.22rem 1.4rem;
  color: var(--ev-text);
  border-radius: 3px;
  font-weight: 400;
  transition: background 0.15s, color 0.15s;
}

/* ── L3: items nested inside an L2 expandable ───────────── */
.md-nav--primary .md-nav__item .md-nav__item .md-nav__item > .md-nav__link {
  padding: 0.2rem 0.6rem 0.2rem 2.4rem;
  font-size: 0.79rem;
  color: var(--ev-muted);
}

/* ── Hover — all levels ──────────────────────────────────── */
.md-nav__item .md-nav__link:hover {
  background: rgba(42, 42, 42, 0.06);
  color: var(--ev-navy);
}

[data-md-color-scheme="slate"] .md-nav__item .md-nav__link:hover {
  background: rgba(255,255,255,0.07);
  color: #f0f0ee;
}

/* ── Active link — all levels ────────────────────────────── */
.md-nav__item .md-nav__link--active {
  color: var(--ev-navy) !important;
  font-weight: 600;
  background: rgba(184, 154, 90, 0.12);
  border-left: 2px solid var(--ev-gold);
}

.md-nav--primary > .md-nav__list > .md-nav__item > .md-nav__link--active {
  padding-left: calc(0.6rem - 2px);
}

.md-nav--primary .md-nav__item .md-nav__item > .md-nav__link--active {
  padding-left: calc(1.4rem - 2px);
}

.md-nav--primary .md-nav__item .md-nav__item .md-nav__item > .md-nav__link--active {
  padding-left: calc(2.4rem - 2px);
}

[data-md-color-scheme="slate"] .md-nav__item .md-nav__link--active {
  color: #f0f0ee !important;
  background: rgba(184, 154, 90, 0.15);
}

/* Sidebar background */
.md-sidebar--primary {
  border-right: 1px solid var(--ev-rule);
  background: var(--ev-bg);
}

[data-md-color-scheme="slate"] .md-sidebar--primary {
  background: var(--ev-bg);
  border-right-color: var(--ev-rule);
}

/* ── Content area ─────────────────────────────────────────── */
.md-content {
  background: var(--ev-bg);
}

.md-grid {
  max-width: 1260px;
}

.md-typeset {
  max-width: 780px;
}

/* ── Tables ───────────────────────────────────────────────── */
.md-typeset table:not([class]) {
  font-size: 0.875rem;
  border-collapse: collapse;
  width: 100%;
  font-family: 'Lora', Georgia, serif;
}

.md-typeset table:not([class]) th {
  background-color: var(--ev-navy);
  color: #ffffff;
  font-family: 'Libre Baskerville', Georgia, serif;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 0.6rem 0.9rem;
  border: none;
}

.md-typeset table:not([class]) td {
  padding: 0.55rem 0.9rem;
  border-bottom: 1px solid var(--ev-rule);
  vertical-align: top;
}

.md-typeset table:not([class]) tr:nth-child(even) td {
  background: rgba(42, 42, 42, 0.025);
}

[data-md-color-scheme="slate"] .md-typeset table:not([class]) tr:nth-child(even) td {
  background: rgba(255,255,255,0.03);
}

/* ── Code blocks ──────────────────────────────────────────── */

/* Inline code */
.md-typeset code {
  font-family: 'JetBrains Mono', 'Fira Code', monospace;
  font-size: 0.8em;
  font-weight: 500;
  background: rgba(184, 154, 90, 0.10);
  padding: 0.15em 0.45em;
  border-radius: 3px;
  color: var(--ev-navy-soft);
  border: 1px solid rgba(184, 154, 90, 0.25);
}

[data-md-color-scheme="slate"] .md-typeset code {
  background: rgba(184, 154, 90, 0.08);
  color: #93b4e0;
  border-color: rgba(184, 154, 90, 0.2);
}

/* Fenced / block code — reset inline overrides */
.md-typeset pre > code {
  background: transparent;
  padding: 0;
  color: inherit;
  border: none;
  font-weight: 400;
}

/* Block code wrapper */
.md-typeset pre {
  margin-left: 1.2rem;
}

.highlight {
  border-radius: 5px;
  border: 1px solid rgba(184, 154, 90, 0.3);
  background: rgba(184, 154, 90, 0.07);
  overflow: hidden;
  margin-left: 1.2rem;
}

[data-md-color-scheme="slate"] .highlight {
  background: rgba(184, 154, 90, 0.06);
  border-color: rgba(184, 154, 90, 0.18);
}

/* ── Admonitions ──────────────────────────────────────────── */
.md-typeset .admonition,
.md-typeset details {
  border-radius: 4px;
  border-left-width: 3px;
  font-size: 0.88rem;
  box-shadow: none;
}

.md-typeset .admonition-title,
.md-typeset summary {
  font-family: 'Libre Baskerville', Georgia, serif;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

/* Warning → gold */
.md-typeset .admonition.warning,
.md-typeset details.warning {
  border-left-color: var(--ev-gold);
}
.md-typeset .warning > .admonition-title,
.md-typeset .warning > summary {
  background-color: rgba(184,154,90,0.1);
  color: #7a6030;
}

/* Danger → deep red */
.md-typeset .admonition.danger,
.md-typeset details.danger {
  border-left-color: #9b2335;
}
.md-typeset .danger > .admonition-title,
.md-typeset .danger > summary {
  background-color: rgba(155,35,53,0.08);
  color: #7a1a2a;
}

/* Info → navy */
.md-typeset .admonition.info,
.md-typeset details.info {
  border-left-color: var(--ev-navy-soft);
}
.md-typeset .info > .admonition-title,
.md-typeset .info > summary {
  background-color: rgba(15,31,61,0.06);
  color: var(--ev-navy);
}

/* Note → slate */
.md-typeset .admonition.note {
  border-left-color: var(--ev-muted);
}

/* ── TOC sidebar ──────────────────────────────────────────── */
.md-sidebar--secondary .md-nav__link {
  font-size: 0.78rem;
  color: var(--ev-muted);
}

.md-sidebar--secondary .md-nav__link--active {
  color: var(--ev-navy) !important;
  font-weight: 600;
  background: none;
  border-left: none;
  padding-left: 0.8rem;
}

[data-md-color-scheme="slate"] .md-sidebar--secondary .md-nav__link--active {
  color: #f0f0ee !important;
}

/* ── Footer ───────────────────────────────────────────────── */
.md-footer {
  background: var(--ev-navy);
}

.md-footer-meta {
  background: #111111;
}

/* ── Search ───────────────────────────────────────────────── */
.md-search__form {
  border-radius: 3px;
  background: rgba(255,255,255,0.1);
}

/* ── Horizontal rule ──────────────────────────────────────── */
.md-typeset hr {
  border-color: var(--ev-rule);
  margin: 2em 0;
}

/* ── Links ────────────────────────────────────────────────── */
.md-typeset a {
  color: var(--ev-navy-soft);
  text-decoration-color: rgba(36,64,107,0.3);
  text-underline-offset: 2px;
}

.md-typeset a:hover {
  color: var(--ev-navy);
  text-decoration-color: var(--ev-navy);
}

[data-md-color-scheme="slate"] .md-typeset a {
  color: var(--ev-gold-lt);
}

/* ── Grid cards ───────────────────────────────────────────── */
.md-typeset .grid.cards > * {
  border: 1px solid var(--ev-rule);
  border-radius: 4px;
  padding: 1.2rem 1.4rem;
}

/* ── Inline code in tables ────────────────────────────────── */
.md-typeset table code {
  font-size: 0.78em;
}

/* ── Formula blocks ───────────────────────────────────────── */
.arithmatex {
  overflow-x: auto;
}

/* ── Status badges ────────────────────────────────────────── */
.status-active   { color: #1a6e3a; font-weight: bold; }
.status-empty    { color: var(--ev-muted); font-weight: bold; }
.status-settling { color: #7a6030; font-weight: bold; }
.status-written  { color: #9b2335; font-weight: bold; }