:root {
  color-scheme: dark;
  --dark-bg: #000000;
  --dark-fg: #ede8df;
  --dark-muted: #8a7b6e;
  --light-bg: #f0ece3;
  --light-fg: #0d0d14;
  --light-muted: #8f8f9c;
  --accent-light: #3a6e00;
  --bg: var(--dark-bg);
  --fg: var(--dark-fg);
  --muted: var(--dark-muted);
  --accent: var(--accent-dark);
  --panel-bg: rgba(22, 18, 14, 0.76);
  --panel-border: rgba(212, 168, 75, 0.22);
  --font-display: "Bebas Neue", sans-serif;
  --font-mono: "DM Mono", monospace;
  --hairline: 0.0625rem;
  --ui-inset: 2rem;
  --sidebar-rail: 1.5rem;
  --shadow: 0 1.25rem 4rem rgba(0, 0, 0, 0.25);
}

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  color-scheme: dark;
}

body {
  min-height: 100vh;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-mono);
  overflow-x: hidden;
  transition: background 0.3s ease, color 0.3s ease;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  background:
    radial-gradient(circle at top, rgba(212, 168, 75, 0.12), transparent 30%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.02), transparent 24%);
  pointer-events: none;
}

#left_sidebar,
#right_sidebar {
  position: fixed;
  top: 50%;
  translate: 0 -50%;
  width: var(--sidebar-rail);
  min-height: min(70vh, 34rem);
  display: flex;
  flex-direction: column;
  align-items: center;
  z-index: 5;
}

#left_sidebar {
  left: var(--ui-inset);
}

#right_sidebar {
  right: var(--ui-inset);
  justify-content: center;
}

#site_header {
  position: fixed;
  top: var(--ui-inset);
  right: var(--ui-inset);
  z-index: 6;
  display: flex;
  align-items: center;
  justify-content: center;
  width: var(--sidebar-rail);
}

.menu-state {
  position: fixed;
  opacity: 0;
  pointer-events: none;
}

.sidebar-title {
  flex: 1 1 auto;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: clamp(1.35rem, 2vw, 2.2rem);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: color-mix(in srgb, var(--fg) 82%, transparent);
  writing-mode: vertical-rl;
  text-orientation: mixed;
  transform: rotate(180deg);
}

#theme_toggle {
  margin-top: auto;
  width: 2rem;
  height: 2rem;
  border: none;
  border-radius: 50%;
  background: color-mix(in srgb, var(--muted) 35%, transparent);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: background 0.25s ease, transform 0.2s ease;
}

#theme_toggle:hover,
#theme_toggle:focus-visible {
  background: color-mix(in srgb, var(--muted) 55%, transparent);
  transform: scale(0.96);
}

#theme_toggle svg {
  width: 0.875rem;
  height: 0.875rem;
  position: absolute;
  color: var(--accent);
  transition: opacity 0.3s ease, rotate 0.3s ease;
}

#theme_toggle .icon-sun {
  opacity: 1;
  rotate: 0deg;
}

#theme_toggle .icon-moon {
  opacity: 0;
  rotate: 90deg;
}

.rail-link {
  text-decoration: none;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.56rem;
  color: var(--accent);
  padding: 0.7rem 0.85rem;
  border: var(--hairline) solid color-mix(in srgb, var(--accent) 58%, transparent);
  border-radius: 999px;
  background: color-mix(in srgb, var(--bg) 42%, transparent);
  min-width: 4.5rem;
  text-align: center;
  white-space: nowrap;
  transition: color 0.2s ease, background 0.2s ease, border-color 0.2s ease;
}

.rail-link:hover,
.rail-link:focus-visible {
  background: var(--accent);
  color: var(--bg);
  border-color: var(--accent);
}

.menu-toggle {
  width: 3rem;
  height: 3rem;
  border: none;
  border-radius: 50%;
  background: transparent;
  display: grid;
  place-items: center;
  gap: 0.2rem;
  padding: 0;
  cursor: pointer;
  transform-origin: center;
  transition: transform 0.18s ease;
}

.menu-toggle:hover,
.menu-toggle:focus-visible {
  transform: scale(0.9);
}

.menu-toggle span {
  display: block;
  width: 1rem;
  height: 0.0625rem;
  background: var(--fg);
  transition: transform 0.25s ease, opacity 0.25s ease;
}

.menu-state:checked ~ #site_header .menu-toggle span:nth-child(1) {
  transform: translateY(0.26rem) rotate(45deg);
}

.menu-state:checked ~ #site_header .menu-toggle span:nth-child(2) {
  opacity: 0;
}

.menu-state:checked ~ #site_header .menu-toggle span:nth-child(3) {
  transform: translateY(-0.26rem) rotate(-45deg);
}

#menu_scrim {
  position: fixed;
  inset: 0;
  z-index: 7;
  background: rgba(8, 8, 10, 0.38);
  backdrop-filter: blur(5px);
  -webkit-backdrop-filter: blur(5px);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

.menu-state:checked ~ #menu_scrim {
  opacity: 1;
  pointer-events: auto;
}

#site_menu {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  z-index: 8;
  width: min(26rem, 88vw);
  padding: 7rem 2rem 2rem;
  background:
    linear-gradient(180deg, color-mix(in srgb, var(--accent) 12%, transparent), transparent 26%),
    color-mix(in srgb, var(--bg) 90%, black 10%);
  border-left: var(--hairline) solid color-mix(in srgb, var(--accent) 24%, transparent);
  box-shadow: -1.5rem 0 3rem rgba(0, 0, 0, 0.2);
  transform: translateX(100%);
  pointer-events: none;
  visibility: hidden;
  transition: transform 0.35s ease;
  display: flex;
  flex-direction: column;
}

.menu-state:checked ~ #site_menu {
  transform: translateX(0);
  pointer-events: auto;
  visibility: visible;
}

.menu-kicker {
  font-size: 0.62rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--accent);
  margin-block-end: 1.5rem;
}

.site-menu-nav {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 1rem;
}

.site-menu-nav a {
  color: var(--fg);
  text-decoration: none;
  font-family: var(--font-display);
  font-size: clamp(2rem, 6vw, 3.6rem);
  letter-spacing: 0.08em;
  line-height: 0.95;
  text-transform: uppercase;
  transition: color 0.2s ease, translate 0.2s ease;
}

.site-menu-nav a:hover,
.site-menu-nav a:focus-visible {
  color: var(--accent);
  translate: 0.35rem 0;
}

.menu-meta {
  margin-top: auto;
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.menu-meta a {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.62rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

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

.auth-page {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 3rem calc(5rem + var(--sidebar-rail));
}

.auth-shell {
  width: min(70rem, 100%);
  min-height: min(44rem, calc(100vh - 6rem));
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  border: var(--hairline) solid var(--panel-border);
  background: var(--panel-bg);
  box-shadow: var(--shadow);
  overflow: hidden;
  isolation: isolate;
}

.auth-visual {
  position: relative;
  padding: 2.25rem;
  display: flex;
  align-items: flex-end;
  background:
    linear-gradient(180deg, rgba(0, 0, 0, 0.08), rgba(0, 0, 0, 0.48)),
    var(--visual-image) center / cover no-repeat;
}

.auth-visual::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at center, rgba(212, 168, 75, 0.16), transparent 34%),
    linear-gradient(180deg, transparent, rgba(0, 0, 0, 0.22));
}

.visual-copy {
  position: relative;
  z-index: 1;
  max-width: 23rem;
}

.visual-kicker {
  font-size: 0.62rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: #d4a84b;
}

.visual-copy h1 {
  margin-top: 1rem;
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(3.2rem, 7vw, 5.75rem);
  line-height: 0.9;
  letter-spacing: 0.03em;
  color: #f7f3eb;
  text-shadow: 0 0.2rem 1.6rem rgba(0, 0, 0, 0.32);
}

.visual-copy p {
  margin-top: 1rem;
  font-size: 0.78rem;
  line-height: 1.8;
  color: rgba(247, 243, 235, 0.88);
  text-shadow: 0 0.12rem 1.2rem rgba(0, 0, 0, 0.28);
}

.auth-panel {
  position: relative;
  padding: 3rem 3rem 2.5rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
  background:
    linear-gradient(180deg, color-mix(in srgb, var(--accent) 6%, transparent), transparent 18%),
    color-mix(in srgb, var(--bg) 92%, black 8%);
}

.panel-kicker {
  font-size: 0.6rem;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--accent);
}

.panel-title {
  margin-top: 0.75rem;
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 400;
  line-height: 0.92;
  letter-spacing: 0.03em;
}

.panel-body {
  margin-top: 1rem;
  max-width: 24rem;
  font-size: 0.76rem;
  line-height: 1.85;
  color: color-mix(in srgb, var(--fg) 66%, transparent);
}

.auth-form {
  margin-top: 2rem;
  display: grid;
  gap: 1rem;
}

.field-group {
  display: grid;
  gap: 0.45rem;
}

.field-group label {
  font-size: 0.58rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
}

.field-group input {
  width: 100%;
  padding: 0.95rem 1rem;
  border: var(--hairline) solid color-mix(in srgb, var(--muted) 36%, transparent);
  background: color-mix(in srgb, var(--bg) 58%, transparent);
  color: var(--fg);
  font-family: var(--font-mono);
  font-size: 0.82rem;
  outline: none;
  transition: border-color 0.2s ease, background 0.2s ease;
}

.field-group input:focus {
  border-color: var(--accent);
  background: color-mix(in srgb, var(--bg) 72%, transparent);
}

.field-row {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 1rem;
}

.checkbox-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.7rem;
  color: color-mix(in srgb, var(--fg) 70%, transparent);
}

.checkbox-row input {
  accent-color: var(--accent);
}

.inline-link,
.forgot-link {
  color: var(--accent);
  text-decoration: none;
}

.forgot-link {
  font-size: 0.62rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.primary-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  width: fit-content;
  margin-top: 0.35rem;
  padding: 0.85rem 1.2rem;
  border: var(--hairline) solid var(--accent);
  background: transparent;
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  cursor: pointer;
  transition: background 0.2s ease, color 0.2s ease;
}

.primary-button:hover,
.primary-button:focus-visible {
  background: var(--accent);
  color: var(--bg);
}

.panel-foot {
  margin-top: 1.25rem;
  font-size: 0.7rem;
  line-height: 1.8;
  color: color-mix(in srgb, var(--fg) 64%, transparent);
}

:root[data-theme="light"] {
  color-scheme: light;
  --bg: var(--light-bg);
  --fg: var(--light-fg);
  --muted: var(--light-muted);
  --accent: var(--accent-light);
  --panel-bg: rgba(240, 236, 227, 0.62);
  --panel-border: rgba(58, 110, 0, 0.18);
}

:root[data-theme="light"] body::before {
  background:
    radial-gradient(circle at top, rgba(58, 110, 0, 0.08), transparent 30%),
    linear-gradient(180deg, rgba(0, 0, 0, 0.02), transparent 24%);
}

:root[data-theme="light"] #theme_toggle .icon-sun {
  opacity: 0;
  rotate: -90deg;
}

:root[data-theme="light"] #theme_toggle .icon-moon {
  opacity: 1;
  rotate: 0deg;
}

:root[data-theme="light"] #theme_toggle svg {
  color: var(--fg);
}

:root[data-theme="light"] .auth-panel {
  background:
    linear-gradient(180deg, color-mix(in srgb, var(--accent) 6%, transparent), transparent 18%),
    rgba(240, 236, 227, 0.84);
}

:root[data-theme="light"] .auth-shell {
  box-shadow: 0 1rem 2.5rem rgba(13, 13, 20, 0.08);
}

:root[data-theme="light"] .field-group input {
  background: rgba(255, 255, 255, 0.72);
}

:root[data-theme="light"] .panel-body,
:root[data-theme="light"] .panel-foot {
  color: color-mix(in srgb, var(--fg) 82%, transparent);
}

@media (width <= 56.25em) {
  #left_sidebar,
  #right_sidebar {
    min-height: min(64vh, 24rem);
  }

  #left_sidebar {
    left: 1rem;
  }

  #right_sidebar {
    right: 1rem;
  }

  #site_header {
    top: 1rem;
    right: 1rem;
  }

  .sidebar-title {
    font-size: 1rem;
    letter-spacing: 0.14em;
  }

  .auth-page {
    padding: 1.25rem 4.5rem;
  }

  .auth-shell {
    min-height: auto;
    grid-template-columns: 1fr;
  }

  .auth-visual {
    min-height: 18rem;
    padding: 1.5rem;
  }

  .auth-panel {
    padding: 2rem 1.5rem;
  }

  #site_menu {
    width: 100vw;
    padding: 6rem 1.5rem 2rem;
  }

  .site-menu-nav a {
    font-size: clamp(1.8rem, 10vw, 3rem);
  }
}