/* =========================================================
   THE ALIGNMENT ARCHIVE
   CORE SYSTEMS — INDEX / LANDING PAGE
   ========================================================= */


/* ---------------------------------------------------------
   DARK MODE — DEFAULT
   --------------------------------------------------------- */

.core-index,
.core-index[data-theme="dark"] {
  --core-index-bg: #0e0f0d;
  --core-index-bg-soft: #171814;
  --core-index-bg-row: rgba(255, 255, 255, 0.024);

  --core-index-text: #e9e6de;
  --core-index-strong: #fffdf8;
  --core-index-muted: #cbc7bd;
  --core-index-faint: #969188;

  --core-index-accent: #cbb98c;
  --core-index-accent-deep: #aa9560;
  --core-index-accent-ink: #17140d;
  --core-index-accent-soft: rgba(203, 185, 140, 0.12);

  --core-index-line: rgba(249, 246, 237, 0.28);
  --core-index-line-strong: rgba(249, 246, 237, 0.56);

  --core-index-pill-bg: rgba(255, 255, 255, 0.03);
  --core-index-pill-border: rgba(203, 185, 140, 0.58);
  --core-index-pill-hover: rgba(203, 185, 140, 0.12);

  --core-index-selection: rgba(203, 185, 140, 0.30);
}


/* ---------------------------------------------------------
   LIGHT MODE
   --------------------------------------------------------- */

.core-index[data-theme="light"] {
  --core-index-bg: #f1efe8;
  --core-index-bg-soft: #e7e2d7;
  --core-index-bg-row: rgba(255, 255, 255, 0.36);

  --core-index-text: #25251f;
  --core-index-strong: #090a07;
  --core-index-muted: #44443c;
  --core-index-faint: #66645b;

  --core-index-accent: #746239;
  --core-index-accent-deep: #584a28;
  --core-index-accent-ink: #fffdf7;
  --core-index-accent-soft: rgba(116, 98, 57, 0.11);

  --core-index-line: rgba(14, 15, 12, 0.30);
  --core-index-line-strong: rgba(14, 15, 12, 0.58);

  --core-index-pill-bg: rgba(255, 255, 255, 0.44);
  --core-index-pill-border: rgba(88, 74, 40, 0.56);
  --core-index-pill-hover: rgba(116, 98, 57, 0.12);

  --core-index-selection: rgba(116, 98, 57, 0.22);
}


/* ---------------------------------------------------------
   GLOBAL PAGE BOUNDARY
   Header and footer remain in the dark global shell.
   --------------------------------------------------------- */

html,
body {
  width: 100%;
  max-width: 100%;
  overflow-x: hidden;
}

html {
  background: #0e0f0d;
}

body.core-systems-index-page {
  margin: 0;
  background: #0e0f0d !important;
  background-image: none !important;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}


/* ---------------------------------------------------------
   GLOBAL MENU LOCK
   --------------------------------------------------------- */

body.core-systems-index-page .aa-header {
  z-index: 999999 !important;
  background-color: #0e0f0d !important;
  color: #f4f1e8 !important;
  color-scheme: dark;
}

body.core-systems-index-page .aa-header .aa-brand,
body.core-systems-index-page .aa-header .aa-brand *,
body.core-systems-index-page .aa-header .aa-nav a,
body.core-systems-index-page .aa-header .aa-menu-dot,
body.core-systems-index-page .aa-header .aa-menu-dot * {
  color: #f4f1e8 !important;
}

body.core-systems-index-page .aa-header .aa-index-dropdown {
  background:
    linear-gradient(
      135deg,
      rgba(12, 13, 14, 0.96),
      rgba(12, 13, 14, 0.90) 48%,
      rgba(255, 255, 255, 0.045)
    ),
    radial-gradient(
      circle at 8% 0%,
      rgba(255, 255, 255, 0.13),
      transparent 34%
    ),
    radial-gradient(
      circle at 100% 100%,
      rgba(184, 145, 69, 0.10),
      transparent 42%
    ) !important;
  border: 1px solid rgba(255, 255, 255, 0.20) !important;
  color: rgba(244, 241, 232, 0.78) !important;
  box-shadow:
    0 30px 90px rgba(0, 0, 0, 0.72),
    inset 0 1px 0 rgba(255, 255, 255, 0.13) !important;
  backdrop-filter: blur(28px) saturate(1.12) !important;
  -webkit-backdrop-filter: blur(28px) saturate(1.12) !important;
}


/* ---------------------------------------------------------
   INDEX FOUNDATION
   --------------------------------------------------------- */

.core-index,
.core-index *,
.core-index *::before,
.core-index *::after {
  box-sizing: border-box;
  min-width: 0;
}

.core-index {
  position: relative;
  width: 100%;
  max-width: 100%;
  min-height: 100vh;
  overflow-x: hidden;
  background: var(--core-index-bg);
  color: var(--core-index-text);
  font-family:
    "Space Grotesk",
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    sans-serif;
  transition:
    background-color 220ms ease,
    color 220ms ease;
}

.core-index a {
  color: inherit;
}

.core-index ::selection {
  background: var(--core-index-selection);
  color: var(--core-index-strong);
}

.core-index-shell {
  width: min(100%, 780px);
  margin: 0 auto;
  padding-right: clamp(20px, 4vw, 36px);
  padding-left: clamp(20px, 4vw, 36px);
}

.core-index-shell-wide {
  width: min(100%, 1180px);
}


/* ---------------------------------------------------------
   CENTERED HERO
   --------------------------------------------------------- */

.core-index-hero {
  padding:
    clamp(104px, 9vw, 132px)
    0
    clamp(82px, 11vw, 126px);
  border-bottom: 2px solid var(--core-index-line-strong);
  background:
    radial-gradient(
      circle at 50% 12%,
      var(--core-index-accent-soft),
      transparent 34%
    ),
    var(--core-index-bg);
  text-align: center;
}

.core-index-toolbar {
  position: relative;
  z-index: 100;
  display: flex;
  width: 100%;
  justify-content: center;
  margin: 0 0 42px;
}

.core-index-breadcrumb {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 9px;
  margin: 0 0 30px;
  color: var(--core-index-muted);
  font-family: "IBM Plex Mono", monospace;
  font-size: 10px;
  font-weight: 600;
  line-height: 1.5;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.core-index-breadcrumb a {
  color: var(--core-index-muted);
  text-decoration: none;
}

.core-index-breadcrumb a:hover,
.core-index-breadcrumb a:focus-visible {
  color: var(--core-index-accent);
}

.core-index-kicker {
  margin: 0 0 22px;
  color: var(--core-index-accent);
  font-family: "IBM Plex Mono", monospace;
  font-size: 10px;
  font-weight: 600;
  line-height: 1.5;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

.core-index-hero h1 {
  margin: 0;
  color: var(--core-index-strong) !important;
  font-family: "Cinzel", Georgia, serif;
  font-size: clamp(52px, 8vw, 100px);
  font-weight: 600;
  line-height: 1;
  letter-spacing: -0.035em;
  text-wrap: balance;
}

.core-index-subtitle {
  margin: 25px 0 0;
  color: var(--core-index-muted);
  font-family: "IBM Plex Mono", monospace;
  font-size: 11px;
  font-weight: 600;
  line-height: 1.7;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.core-index-title-rule {
  width: 150px;
  height: 2px;
  margin: 43px auto 0;
  background: var(--core-index-accent);
}

.core-index-deck {
  max-width: 670px;
  margin: 38px auto 0;
  color: var(--core-index-text);
  font-family: "Newsreader", Georgia, serif;
  font-size: clamp(24px, 3.3vw, 34px);
  font-weight: 500;
  line-height: 1.5;
  letter-spacing: -0.012em;
  text-wrap: balance;
}

.core-index-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 38px;
}


/* ---------------------------------------------------------
   THEME TOGGLE
   --------------------------------------------------------- */

.core-index-theme-control {
  position: relative;
  z-index: 101;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  color: var(--core-index-muted);
}

.core-index-theme-symbol {
  display: block;
  width: 16px;
  color: var(--core-index-muted);
  font-family: Georgia, serif;
  font-size: 15px;
  line-height: 1;
  text-align: center;
  transition:
    color 180ms ease,
    opacity 180ms ease;
}

.core-index[data-theme="dark"] .core-index-theme-symbol-dark,
.core-index[data-theme="light"] .core-index-theme-symbol-light {
  color: var(--core-index-accent);
  opacity: 1;
}

.core-index[data-theme="dark"] .core-index-theme-symbol-light,
.core-index[data-theme="light"] .core-index-theme-symbol-dark {
  opacity: 0.42;
}

.core-index-theme-toggle {
  position: relative;
  z-index: 102;
  display: block;
  width: 50px;
  height: 28px;
  margin: 0;
  padding: 0;
  border: 0 !important;
  border-radius: 999px;
  background: transparent !important;
  appearance: none;
  -webkit-appearance: none;
  cursor: pointer;
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
  outline: none;
  box-shadow: none !important;
}

.core-index-theme-toggle:hover,
.core-index-theme-toggle:focus,
.core-index-theme-toggle:active {
  border: 0 !important;
  background: transparent !important;
  outline: none !important;
  box-shadow: none !important;
}

.core-index-theme-track {
  position: relative;
  display: block;
  width: 50px;
  height: 28px;
  border: 1px solid var(--core-index-line-strong);
  border-radius: 999px;
  background: var(--core-index-bg-soft);
  transition:
    background-color 180ms ease,
    border-color 180ms ease;
}

.core-index-theme-thumb {
  position: absolute;
  top: 4px;
  left: 4px;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--core-index-strong);
  transform: translateX(0);
  transition:
    transform 200ms ease,
    background-color 200ms ease;
}

.core-index-theme-toggle:hover .core-index-theme-track {
  border-color: var(--core-index-accent);
}

.core-index-theme-toggle:focus-visible .core-index-theme-track {
  outline: 1px solid var(--core-index-accent);
  outline-offset: 4px;
}

.core-index-theme-toggle[aria-checked="true"] .core-index-theme-thumb {
  transform: translateX(22px);
  background: var(--core-index-accent);
}


/* ---------------------------------------------------------
   PILL BUTTONS
   --------------------------------------------------------- */

.core-index-pill {
  display: inline-flex;
  min-width: 170px;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  gap: 9px;
  padding: 11px 20px;
  border: 1px solid var(--core-index-pill-border);
  border-radius: 999px;
  background: var(--core-index-pill-bg);
  color: var(--core-index-strong) !important;
  font-family: "IBM Plex Mono", monospace;
  font-size: 9px;
  font-weight: 600;
  line-height: 1;
  letter-spacing: 0.12em;
  text-align: center;
  text-decoration: none;
  text-transform: uppercase;
  white-space: nowrap;
  transition:
    color 170ms ease,
    background-color 170ms ease,
    border-color 170ms ease,
    transform 170ms ease;
}

.core-index-pill:hover,
.core-index-pill:focus-visible {
  border-color: var(--core-index-accent);
  background: var(--core-index-pill-hover);
  color: var(--core-index-accent) !important;
  transform: translateY(-2px);
}

.core-index-pill-primary {
  border-color: var(--core-index-accent);
  background: var(--core-index-accent);
  color: var(--core-index-accent-ink) !important;
}

.core-index-pill-primary:hover,
.core-index-pill-primary:focus-visible {
  border-color: var(--core-index-accent-deep);
  background: var(--core-index-accent-deep);
  color: var(--core-index-accent-ink) !important;
}


/* ---------------------------------------------------------
   STICKY CATEGORY NAVIGATION
   --------------------------------------------------------- */

.core-index-subnav-wrap {
  position: sticky;
  z-index: 80;
  top: 0;
  border-bottom: 1px solid var(--core-index-line-strong);
  background: color-mix(in srgb, var(--core-index-bg) 88%, transparent);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
}

.core-index-subnav {
  display: flex;
  align-items: center;
  gap: 10px;
  overflow-x: auto;
  padding: 14px 0;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
}

.core-index-subnav::-webkit-scrollbar {
  display: none;
}

.core-index-chip {
  flex: 0 0 auto;
  display: inline-flex;
  min-height: 38px;
  align-items: center;
  justify-content: center;
  padding: 0 14px;
  border: 1px solid var(--core-index-line);
  border-radius: 999px;
  background: transparent;
  color: var(--core-index-muted) !important;
  font-family: "IBM Plex Mono", monospace;
  font-size: 9px;
  font-weight: 600;
  line-height: 1;
  letter-spacing: 0.1em;
  text-decoration: none;
  text-transform: uppercase;
  white-space: nowrap;
}

.core-index-chip:hover,
.core-index-chip[aria-current="true"] {
  border-color: var(--core-index-accent);
  background: var(--core-index-accent-soft);
  color: var(--core-index-accent) !important;
}


/* ---------------------------------------------------------
   CATEGORY SECTIONS
   --------------------------------------------------------- */

.core-index-section {
  padding: clamp(82px, 10vw, 122px) 0;
  border-bottom: 1px solid var(--core-index-line-strong);
  background: var(--core-index-bg);
  scroll-margin-top: 78px;
}

.core-index-section:nth-child(even) {
  background:
    radial-gradient(
      circle at 50% 0%,
      var(--core-index-accent-soft),
      transparent 30%
    ),
    var(--core-index-bg);
}

.core-index-section-head {
  margin: 0 auto 48px;
  text-align: center;
}

.core-index-section-number {
  margin: 0 0 20px;
  color: var(--core-index-accent);
  font-family: "IBM Plex Mono", monospace;
  font-size: 9px;
  font-weight: 600;
  line-height: 1.5;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.core-index-section-head h2 {
  margin: 0;
  color: var(--core-index-strong) !important;
  font-family: "Cinzel", Georgia, serif;
  font-size: clamp(34px, 5vw, 58px);
  font-weight: 600;
  line-height: 1.15;
  letter-spacing: -0.025em;
  text-wrap: balance;
}

.core-index-section-subtitle {
  margin: 20px 0 0;
  color: var(--core-index-muted);
  font-family: "IBM Plex Mono", monospace;
  font-size: 10px;
  font-weight: 600;
  line-height: 1.6;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.core-index-section-rule {
  width: 78px;
  height: 2px;
  margin: 28px auto 0;
  background: var(--core-index-accent);
}

.core-index-section-copy {
  max-width: 680px;
  margin: 28px auto 0;
  color: var(--core-index-text);
  font-family: "Newsreader", Georgia, serif;
  font-size: 20px;
  font-weight: 500;
  line-height: 1.7;
}


/* ---------------------------------------------------------
   SCROLL INDEX ROWS
   --------------------------------------------------------- */

.core-index-scroll-list {
  border-top: 1px solid var(--core-index-line-strong);
}

.core-index-scroll {
  display: grid;
  grid-template-columns: 38px minmax(0, 1fr) 28px;
  gap: 18px;
  align-items: center;
  padding: 25px 2px;
  border-bottom: 1px solid var(--core-index-line);
  background: transparent;
  color: var(--core-index-text) !important;
  text-decoration: none;
  transition:
    background-color 170ms ease,
    border-color 170ms ease,
    transform 170ms ease;
}

.core-index-scroll:hover,
.core-index-scroll:focus-visible {
  border-bottom-color: var(--core-index-accent);
  background:
    linear-gradient(
      90deg,
      var(--core-index-accent-soft),
      transparent 76%
    );
  transform: translateX(4px);
}

.core-index-scroll-number {
  color: var(--core-index-accent);
  font-family: "IBM Plex Mono", monospace;
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.08em;
}

.core-index-scroll-content {
  display: block;
}

.core-index-scroll-title {
  display: block;
  color: var(--core-index-strong);
  font-family: "Cinzel", Georgia, serif;
  font-size: clamp(18px, 2vw, 23px);
  font-weight: 600;
  line-height: 1.35;
}

.core-index-scroll-description {
  display: block;
  margin-top: 8px;
  color: var(--core-index-muted);
  font-family: "Newsreader", Georgia, serif;
  font-size: 17px;
  font-weight: 500;
  line-height: 1.55;
}

.core-index-scroll-arrow {
  color: var(--core-index-accent);
  font-family: "IBM Plex Mono", monospace;
  font-size: 16px;
  text-align: right;
}


/* ---------------------------------------------------------
   CLOSING
   --------------------------------------------------------- */

.core-index-closing {
  padding: clamp(88px, 11vw, 132px) 0;
  background:
    radial-gradient(
      circle at 50% 0%,
      var(--core-index-accent-soft),
      transparent 34%
    ),
    var(--core-index-bg);
  text-align: center;
}

.core-index-closing h2 {
  margin: 0;
  color: var(--core-index-strong) !important;
  font-family: "Cinzel", Georgia, serif;
  font-size: clamp(34px, 5vw, 58px);
  font-weight: 600;
  line-height: 1.18;
  letter-spacing: -0.025em;
  text-wrap: balance;
}

.core-index-closing > .core-index-shell > p:not(.core-index-kicker) {
  max-width: 680px;
  margin: 30px auto 0;
  color: var(--core-index-text);
  font-family: "Newsreader", Georgia, serif;
  font-size: 20px;
  font-weight: 500;
  line-height: 1.72;
}


/* ---------------------------------------------------------
   MODE-SPECIFIC WEIGHT / CONTRAST
   --------------------------------------------------------- */

.core-index[data-theme="light"] .core-index-deck,
.core-index[data-theme="light"] .core-index-section-copy,
.core-index[data-theme="light"] .core-index-scroll-description,
.core-index[data-theme="light"] .core-index-closing > .core-index-shell > p {
  font-weight: 550;
}

.core-index[data-theme="light"] .core-index-breadcrumb,
.core-index[data-theme="light"] .core-index-subtitle,
.core-index[data-theme="light"] .core-index-section-subtitle {
  color: #3e3e37 !important;
  font-weight: 650;
}

.core-index[data-theme="dark"] .core-index-breadcrumb,
.core-index[data-theme="dark"] .core-index-subtitle,
.core-index[data-theme="dark"] .core-index-section-subtitle {
  color: #d2cec4 !important;
}


/* ---------------------------------------------------------
   TABLET
   --------------------------------------------------------- */

@media (max-width: 800px) {
  .core-index-hero {
    padding-top: 104px;
  }

  .core-index-toolbar {
    justify-content: center;
    margin-bottom: 34px;
  }

  .core-index-subnav-wrap {
    top: 0;
  }
}


/* ---------------------------------------------------------
   MOBILE
   --------------------------------------------------------- */

@media (max-width: 560px) {
  .core-index-hero {
    padding:
      104px
      0
      74px;
  }

  .core-index-toolbar {
    justify-content: center;
    margin-bottom: 28px;
  }

  .core-index-theme-toggle,
  .core-index-theme-track {
    width: 46px;
    height: 26px;
  }

  .core-index-theme-thumb {
    width: 16px;
    height: 16px;
  }

  .core-index-theme-toggle[aria-checked="true"] .core-index-theme-thumb {
    transform: translateX(20px);
  }

  .core-index-breadcrumb {
    font-size: 8px;
  }

  .core-index-kicker {
    font-size: 9px;
  }

  .core-index-hero h1 {
    font-size: clamp(43px, 14vw, 64px);
  }

  .core-index-subtitle {
    font-size: 9px;
  }

  .core-index-title-rule {
    width: 110px;
    margin-top: 34px;
  }

  .core-index-deck {
    margin-top: 30px;
    font-size: 25px;
  }

  .core-index-actions {
    display: grid;
    grid-template-columns: 1fr;
    width: min(100%, 340px);
    margin-right: auto;
    margin-left: auto;
  }

  .core-index-pill {
    width: 100%;
  }

  .core-index-section {
    padding: 76px 0;
  }

  .core-index-section-head {
    margin-bottom: 38px;
  }

  .core-index-section-head h2 {
    font-size: 34px;
  }

  .core-index-section-copy {
    font-size: 18px;
  }

  .core-index-scroll {
    grid-template-columns: 28px minmax(0, 1fr) 20px;
    gap: 12px;
    padding: 22px 0;
  }

  .core-index-scroll-title {
    font-size: 18px;
  }

  .core-index-scroll-description {
    font-size: 16px;
  }

  .core-index-scroll:hover,
  .core-index-scroll:focus-visible {
    transform: none;
  }

  .core-index-closing {
    padding: 82px 0;
  }

  .core-index-closing h2 {
    font-size: 34px;
  }
}


/* ---------------------------------------------------------
   VERY SMALL MOBILE
   --------------------------------------------------------- */

@media (max-width: 390px) {
  .core-index-shell {
    padding-right: 16px;
    padding-left: 16px;
  }

  .core-index-scroll {
    grid-template-columns: 24px minmax(0, 1fr) 18px;
    gap: 9px;
  }
}


/* ---------------------------------------------------------
   REDUCED MOTION
   --------------------------------------------------------- */

@media (prefers-reduced-motion: reduce) {
  .core-index,
  .core-index-theme-symbol,
  .core-index-theme-track,
  .core-index-theme-thumb,
  .core-index-pill,
  .core-index-chip,
  .core-index-scroll {
    transition: none;
  }

  .core-index-pill:hover,
  .core-index-pill:focus-visible,
  .core-index-scroll:hover,
  .core-index-scroll:focus-visible {
    transform: none;
  }
}