/*
  UV's Compendium global stylesheet
  Global layout, navigation, typography, and shared visual system.
*/

:root {
  --color-bg: #050505;
  --color-bg-alt: #0b0b0b;
  --color-surface: #111111;
  --color-surface-raised: #17130f;
  --color-surface-muted: #1d1a16;

  --color-text: #ffffff;
  --color-text-muted: #bca86c;
  --color-text-soft: #d8cfb1;
  --color-magic: #a0a5c8;
  --color-fire: #e16c6c;
  --color-accent: #ff8000;
  --color-ultraviolet: #5d3ef9;

  --color-border: #5f5f5f;
  --color-border-warm: #bca86c;
  --color-focus: #ffb05c;

  --font-base: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-heading: Georgia, "Times New Roman", serif;

  --space-2xs: 0.25rem;
  --space-xs: 0.5rem;
  --space-sm: 0.75rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;

  --radius-sm: 0.35rem;
  --radius-md: 0.75rem;
  --radius-lg: 1rem;

  --shadow-soft: 0 1rem 3rem rgb(0 0 0 / 0.35);
  --sidebar-width: 21rem;
  --content-width: 68rem;
  --transition-fast: 160ms ease;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  color-scheme: dark;
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  margin: 0;
  background:
    radial-gradient(circle at top right, rgb(93 62 249 / 0.14), transparent 24rem),
    radial-gradient(circle at top left, rgb(255 128 0 / 0.12), transparent 22rem),
    var(--color-bg);
  color: var(--color-text-soft);
  font-family: var(--font-base);
  font-size: 1rem;
  line-height: 1.6;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image: linear-gradient(rgb(255 255 255 / 0.025) 1px, transparent 1px);
  background-size: 100% 4px;
  opacity: 0.35;
}

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

h1,
h2,
h3,
p {
  margin: 0;
}

h1,
h2,
h3 {
  color: var(--color-text);
  font-family: var(--font-heading);
  line-height: 1.1;
}

h1 {
  max-width: none;
  font-family: var(--font-base);
  font-size: clamp(2rem, 4.4vw, 4rem);
  font-weight: 800;
  letter-spacing: -0.055em;
  line-height: 0.98;
  white-space: nowrap;
}

h2 {
  font-size: clamp(1.45rem, 3vw, 2.1rem);
}

/* p {
  max-width: 68ch;
} */

a {
  color: var(--color-text);
  text-decoration: none;
  transition: color var(--transition-fast), border-color var(--transition-fast), background-color var(--transition-fast);
}

a:hover,
a:focus-visible {
  color: var(--color-accent);
}

:focus-visible {
  outline: 3px solid var(--color-focus);
  outline-offset: 3px;
}

input,
select,
textarea,
button {
  font: inherit;
}

input,
select,
textarea {
  width: 100%;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background-color: var(--color-surface);
  color: var(--color-text);
  padding: 0.65rem 0.75rem;
}

select,
textarea {
  color: var(--color-magic);
}

textarea {
  min-height: 8rem;
  resize: vertical;
}

button,
.button {
  cursor: pointer;
}

/* Layout */
.site-shell {
  min-height: 100vh;
}

.site-sidebar {
  position: fixed;
  inset: 0 auto 0 0;
  width: var(--sidebar-width);
  min-height: 100dvh;
  overflow-y: auto;
  padding: var(--space-xl) var(--space-md);
  border-right: 1px solid rgb(188 168 108 / 0.35);
  background: linear-gradient(180deg, rgb(17 17 17 / 0.97), rgb(5 5 5 / 0.97));
  box-shadow: var(--shadow-soft);
  z-index: 10;
}

.site-sidebar,
.site-sidebar .site-nav {
  scrollbar-width: thin;
  scrollbar-color: rgb(188 168 108 / 0.28) transparent;
}

.site-sidebar::-webkit-scrollbar,
.site-sidebar .site-nav::-webkit-scrollbar {
  height: 6px;
  width: 6px;
}

.site-sidebar::-webkit-scrollbar-track,
.site-sidebar .site-nav::-webkit-scrollbar-track {
  background: transparent;
}

.site-sidebar::-webkit-scrollbar-thumb,
.site-sidebar .site-nav::-webkit-scrollbar-thumb {
  background-color: rgb(188 168 108 / 0.24);
  border-radius: 999px;
}

.site-sidebar:hover,
.site-sidebar:focus-within,
.site-sidebar.is-mobile-nav-open .site-nav {
  scrollbar-color: rgb(188 168 108 / 0.42) transparent;
}

.site-sidebar:hover::-webkit-scrollbar-thumb,
.site-sidebar:focus-within::-webkit-scrollbar-thumb,
.site-sidebar.is-mobile-nav-open .site-nav::-webkit-scrollbar-thumb {
  background-color: rgb(188 168 108 / 0.38);
}

.site-main {
  width: min(
    calc(100% - var(--sidebar-width) - (var(--space-xl) * 2)),
    var(--content-width)
  );
  margin-left: calc(var(--sidebar-width) + var(--space-xl));
  padding: var(--space-2xl) 0;
}


.site-footer {
  color: var(--color-text-muted);
  font-size: 0.9rem;
  margin-left: calc(var(--sidebar-width) + var(--space-xl));
  padding: var(--space-lg) 0 var(--space-2xl);
  width: min(
    calc(100% - var(--sidebar-width) - (var(--space-xl) * 2)),
    var(--content-width)
  );
}

/* Navigation */
.brand-link {
  border-bottom: 1px solid rgb(188 168 108 / 0.35);
  display: grid;
  gap: var(--space-2xs);
  padding-bottom: var(--space-xl);
}

.brand-kicker,
.brand-subtitle,
.nav-heading,
.eyebrow,
.card-label {
  color: var(--color-accent);
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.brand-title {
  color: var(--color-text);
  font-family: var(--font-heading);
  font-size: 1.65rem;
  line-height: 0.95;
}

.brand-subtitle {
  color: var(--color-magic);
}

.mobile-header-bar {
  display: block;
}

.mobile-nav-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  min-height: 2.45rem;
  border: 1px solid rgb(188 168 108 / 0.35);
  border-radius: var(--radius-sm);
  background-color: rgb(17 17 17 / 0.82);
  color: var(--color-text-soft);
  padding: 0.5rem 0.7rem;
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  line-height: 1;
  text-transform: uppercase;
  transition:
    background-color var(--transition-fast),
    border-color var(--transition-fast),
    color var(--transition-fast);
}

.mobile-nav-toggle:hover,
.mobile-nav-toggle:focus-visible,
.site-sidebar.is-mobile-nav-open .mobile-nav-toggle {
  border-color: var(--color-accent);
  background-color: rgb(255 128 0 / 0.12);
  color: var(--color-accent);
}

.hamburger-icon {
  display: inline-block;
  flex: 0 0 18px;
  height: 14px;
  position: relative;
  width: 18px;
}

.hamburger-icon span {
  background-color: currentColor;
  border-radius: 999px;
  display: block;
  height: 2px;
  left: 0;
  position: absolute;
  transform-origin: center;
  transition:
    opacity 160ms ease,
    top 180ms ease,
    bottom 180ms ease,
    transform 180ms ease;
  width: 18px;
}

.hamburger-icon span:nth-child(1) {
  top: 0;
}

.hamburger-icon span:nth-child(2) {
  top: 50%;
  transform: translateY(-50%);
}

.hamburger-icon span:nth-child(3) {
  bottom: 0;
}

.site-sidebar.is-mobile-nav-open .hamburger-icon span:nth-child(1) {
  top: 50%;
  transform: translateY(-50%) rotate(45deg);
}

.site-sidebar.is-mobile-nav-open .hamburger-icon span:nth-child(2) {
  opacity: 0;
}

.site-sidebar.is-mobile-nav-open .hamburger-icon span:nth-child(3) {
  bottom: 50%;
  transform: translateY(50%) rotate(-45deg);
}

.site-nav {
  display: grid;
  gap: var(--space-xl);
  margin-top: var(--space-xl);
}

.nav-section {
  display: grid;
  gap: var(--space-sm);
}

.nav-heading {
  color: var(--color-accent);
  margin: 0;
}

.nav-list,
.nav-submenu {
  margin: 0;
  padding: 0;
  list-style: none;
}

.nav-list {
  display: grid;
  gap: var(--space-xs);
}

.nav-item,
.nav-menu {
  border-bottom: 1px solid rgb(188 168 108 / 0.12);
  padding-bottom: var(--space-xs);
}

.nav-link,
.nav-submenu-link {
  align-items: center;
  background: transparent;
  border: 0;
  border-radius: var(--radius-sm);
  color: var(--color-text);
  display: flex;
  min-width: 0;
  text-align: left;
  text-decoration: none;
  width: 100%;
}

.nav-menu-toggle {
  cursor: pointer;
  gap: var(--space-sm);
  justify-content: space-between;
  padding: 0.55rem 0.5rem;
}

.nav-page-link {
  padding: 0.55rem 0.5rem;
}

.nav-menu-toggle span:first-child {
  min-width: 0;
  overflow-wrap: anywhere;
}

.nav-arrow {
  color: var(--color-accent);
  flex: 0 0 0.55rem;
  height: 0.55rem;
  position: relative;
  transition: transform 180ms ease;
  width: 0.55rem;
}

.nav-arrow::before {
  border-right: 2px solid currentColor;
  border-bottom: 2px solid currentColor;
  content: "";
  inset: 0;
  position: absolute;
  transform: rotate(45deg) translate(-1px, -1px);
}

.nav-menu.is-open > .nav-menu-toggle .nav-arrow {
  transform: rotate(180deg);
}

.nav-submenu {
  display: grid;
  gap: 0.2rem;
  max-height: 0;
  opacity: 0;
  overflow: hidden;
  transform: translateY(-0.25rem);
  transition:
    max-height 220ms ease,
    opacity 180ms ease,
    transform 180ms ease;
}

.nav-menu.is-open > .nav-submenu {
  max-height: 32rem;
  opacity: 1;
  transform: translateY(0);
}

.nav-submenu-link {
  border-left: 2px solid transparent;
  color: var(--color-text-soft);
  font-size: 0.92rem;
  line-height: 1.35;
  margin-left: 0.35rem;
  padding: 0.42rem 0.5rem 0.42rem 0.85rem;
}

.nav-menu-toggle:hover,
.nav-menu-toggle:focus-visible,
.nav-menu.is-open > .nav-menu-toggle,
.nav-page-link:hover,
.nav-page-link:focus-visible,
.nav-page-link.is-active,
.nav-submenu-link:hover,
.nav-submenu-link:focus-visible,
.nav-submenu-link.is-active {
  background-color: rgb(255 128 0 / 0.08);
  color: var(--color-accent);
}

.nav-submenu-link:hover,
.nav-submenu-link:focus-visible,
.nav-submenu-link.is-active {
  border-left-color: var(--color-accent);
}

/* Menus open by click/tap only. Hover is intentionally limited to visual feedback. */

/* Components */
.section-panel,
.card {
  background: linear-gradient(180deg, rgb(17 17 17 / 0.92), rgb(11 11 11 / 0.9));
  border: 1px solid rgb(188 168 108 / 0.28);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-soft);
}

.section-panel {
  padding: clamp(var(--space-lg), 4vw, var(--space-2xl));
}

.hero {
  overflow: hidden;
  position: relative;
}

.hero::after {
  aspect-ratio: 1;
  background: rgb(225 108 108 / 0.12);
  border-radius: 50%;
  content: "";
  filter: blur(2rem);
  inset: auto -6rem -8rem auto;
  position: absolute;
  width: 18rem;
}

.hero-copy {
  /* max-width: 52rem; */
  color: var(--color-text-soft);
  font-size: clamp(1.05rem, 2vw, 1.25rem);
}

.content-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-lg);
  margin-block: 0;
}

/* Page sections */
.site-main > * + * {
  margin-top: var(--space-lg);
}

.card {
  padding: var(--space-lg);
}

.card-label {
  color: var(--color-magic);
}

.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.75rem;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  padding: 0.7rem 1rem;
  font-weight: 700;
}

.button-primary {
  border-color: var(--color-accent);
  background-color: rgb(255 128 0 / 0.16);
  color: var(--color-text);
}

.button-primary:hover,
.button-primary:focus-visible {
  background-color: rgb(255 128 0 / 0.26);
  color: var(--color-accent);
}

.button-secondary {
  border-color: rgb(160 165 200 / 0.5);
  background-color: rgb(93 62 249 / 0.12);
  color: var(--color-magic);
}

.button-secondary:hover,
.button-secondary:focus-visible {
  border-color: var(--color-ultraviolet);
  color: var(--color-text);
}

.skip-link {
  position: absolute;
  top: var(--space-sm);
  left: var(--space-sm);
  z-index: 100;
  transform: translateY(-200%);
  border-radius: var(--radius-sm);
  background-color: var(--color-accent);
  color: var(--color-bg);
  padding: var(--space-sm) var(--space-md);
  font-weight: 700;
}

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

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* Utilities */
.wrapper {
  margin-inline: auto;
  width: min(100%, var(--content-width));
}

.flow > * + * {
  margin-top: var(--space-md);
}

.flow-lg > * + * {
  margin-top: var(--space-lg);
}

.cluster {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  align-items: center;
}

.grid-auto {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 16rem), 1fr));
  gap: var(--space-lg);
}

.text-muted {
  color: var(--color-text-muted);
}

.text-magic {
  color: var(--color-magic);
}

.text-fire {
  color: var(--color-fire);
}

.text-accent {
  color: var(--color-accent);
}

.surface {
  border: 1px solid rgb(188 168 108 / 0.28);
  border-radius: var(--radius-md);
  background-color: var(--color-surface);
  padding: var(--space-lg);
}

@media (min-width: 897px) and (max-width: 1299px) {
  :root {
    --sidebar-width: clamp(15rem, 23vw, 18rem);
  }

  .site-sidebar {
    padding: var(--space-lg) var(--space-sm);
  }

  .brand-link {
    padding-bottom: var(--space-lg);
  }

  .brand-title {
    font-size: clamp(1.35rem, 1.7vw, 1.55rem);
  }

  .site-nav {
    gap: var(--space-lg);
    margin-top: var(--space-lg);
  }

  .site-main,
  .site-footer {
    width: calc(100% - var(--sidebar-width) - (var(--space-lg) * 2));
    margin-left: calc(var(--sidebar-width) + var(--space-lg));
  }

  .site-main {
    padding-block: var(--space-xl);
  }

  .site-footer {
    padding-block: var(--space-lg) var(--space-xl);
  }

  .section-panel {
    padding: clamp(var(--space-lg), 3vw, var(--space-xl));
  }

  h1 {
    font-size: clamp(1.8rem, 4.25vw, 3.25rem);
  }

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

@media (max-width: 896px) {
  .site-sidebar {
    position: sticky;
    top: 0;
    width: auto;
    min-height: 0;
    max-height: 100dvh;
    overflow: visible;
    padding: 0;
    border-right: 0;
    border-bottom: 1px solid rgb(188 168 108 / 0.35);
    z-index: 50;
  }

  .mobile-header-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-md);
    padding: var(--space-sm) var(--space-md);
    background: linear-gradient(180deg, rgb(17 17 17 / 0.98), rgb(5 5 5 / 0.96));
    box-shadow: 0 0.75rem 1.75rem rgb(0 0 0 / 0.35);
  }

  .brand-block {
    min-width: 0;
  }

  .brand-link {
    border-bottom: 0;
    gap: 0.05rem;
    padding-bottom: 0;
  }

  .brand-kicker,
  .brand-subtitle {
    font-size: 0.66rem;
    letter-spacing: 0.1em;
  }

  .brand-title {
    font-size: clamp(1.2rem, 5.5vw, 1.55rem);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  .mobile-nav-toggle {
    display: inline-flex;
    flex: 0 0 auto;
  }

  .site-nav {
    display: grid;
    gap: var(--space-lg);
    max-height: 0;
    margin-top: 0;
    overflow: hidden;
    padding: 0 var(--space-md);
    pointer-events: none;
    visibility: hidden;
    opacity: 0;
    transform: translateY(-0.4rem);
    transition:
      max-height 240ms ease,
      opacity 180ms ease,
      transform 180ms ease,
      visibility 0ms linear 240ms,
      padding 180ms ease;
  }

  .site-sidebar.is-mobile-nav-open .site-nav {
    max-height: calc(100dvh - 4.5rem);
    overflow-y: auto;
    padding-block: var(--space-md);
    pointer-events: auto;
    visibility: visible;
    opacity: 1;
    transform: translateY(0);
    transition:
      max-height 260ms ease,
      opacity 180ms ease,
      transform 180ms ease,
      visibility 0ms,
      padding 180ms ease;
  }

  .site-main,
  .site-footer {
    width: auto;
    margin-left: 0;
    padding: var(--space-lg) var(--space-md);
  }

  h1 {
    font-size: clamp(1.65rem, 7.5vw, 2.75rem);
    letter-spacing: -0.04em;
    white-space: normal;
  }

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