:root {
  --ink: #f4f1eb;
  --ink-soft: #c9c4ba;
  --muted: #8f8a81;
  --paper: #121212;
  --surface: #1a1a1a;
  --surface-2: #262626;
  --line: rgba(242, 240, 235, 0.16);
  --line-strong: rgba(242, 240, 235, 0.22);
  --danger: #d96b63;
  --accent: #e8e4dc;
  --accent-ink: #1a1a1a;
  --shadow: 0 22px 55px rgba(0, 0, 0, 0.45);
  --radius: 18px;
  --font-display: "Fraunces", Georgia, serif;
  --font-body: "Manrope", system-ui, sans-serif;
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
}

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

html {
  color-scheme: dark;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font-body);
  color: var(--ink);
  background: var(--paper);
}

.atmosphere {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background:
    radial-gradient(ellipse 70% 45% at 12% -5%, rgba(232, 228, 220, 0.08), transparent 55%),
    radial-gradient(ellipse 55% 40% at 92% 8%, rgba(180, 165, 140, 0.06), transparent 50%),
    radial-gradient(ellipse 50% 35% at 50% 100%, rgba(255, 255, 255, 0.03), transparent 55%),
    linear-gradient(180deg, #171717 0%, #121212 52%, #0e0e0e 100%);
}

.atmosphere::after {
  content: "";
  position: absolute;
  inset: 0;
  opacity: 0.035;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  background-size: 180px 180px;
}

.auth-page {
  display: grid;
  place-items: center;
  padding: 1.5rem;
}

.auth-card {
  width: min(420px, 100%);
  padding: 1.85rem 1.6rem 1.55rem;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: linear-gradient(165deg, rgba(38, 38, 38, 0.95) 0%, rgba(26, 26, 26, 0.98) 100%);
  box-shadow: var(--shadow);
  animation: card-rise 0.55s var(--ease-out) both;
}

.auth-brand {
  margin: 0 0 0.55rem;
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  font-weight: 600;
}

.auth-card h1 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.85rem, 4vw, 2.15rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.1;
}

.auth-lede {
  margin: 0.5rem 0 1.2rem;
  color: var(--muted);
  font-size: 0.95rem;
  line-height: 1.45;
}

.auth-error {
  margin: 0 0 0.9rem;
  padding: 0.65rem 0.75rem;
  border-radius: 10px;
  background: rgba(217, 107, 99, 0.14);
  color: var(--danger);
  font-size: 0.9rem;
}

.auth-form {
  display: grid;
  gap: 0.95rem;
}

.auth-field {
  display: grid;
  gap: 0.35rem;
}

.auth-field span {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--muted);
}

.auth-field input {
  min-height: 2.7rem;
  font: inherit;
  color: var(--ink);
  background: rgba(0, 0, 0, 0.28);
  border: 1px solid var(--line-strong);
  border-radius: 12px;
  padding: 0.55rem 0.8rem;
  transition: border-color 0.2s, box-shadow 0.2s, background 0.2s;
}

.auth-field input:focus {
  outline: none;
  border-color: #d8d3c9;
  background: rgba(0, 0, 0, 0.35);
  box-shadow: 0 0 0 3px rgba(242, 240, 235, 0.1);
}

.btn {
  font: inherit;
  font-weight: 600;
  border-radius: 999px;
  border: 1px solid transparent;
  padding: 0.72rem 1.2rem;
  cursor: pointer;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.15s var(--ease-out), filter 0.2s, background 0.2s, border-color 0.2s;
}

.btn:active {
  transform: scale(0.98);
}

.btn-primary {
  background: var(--accent);
  color: var(--accent-ink);
}

.btn-primary:hover {
  filter: brightness(1.05);
}

.auth-submit {
  width: 100%;
  margin-top: 0.15rem;
}

.menu-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  margin-bottom: 0.35rem;
}

.menu-logout {
  color: var(--muted);
  font-size: 0.88rem;
  text-decoration: none;
}

.menu-logout:hover {
  color: var(--ink);
}

.menu-card {
  width: min(500px, 100%);
}

.menu-nav {
  display: grid;
  gap: 0.8rem;
  margin-top: 0.45rem;
}

.menu-btn {
  display: grid;
  gap: 0.3rem;
  padding: 1.15rem 1.15rem 1.1rem;
  border-radius: 16px;
  border: 1px solid var(--line);
  background: linear-gradient(155deg, rgba(48, 48, 48, 0.9) 0%, rgba(32, 32, 32, 0.95) 100%);
  color: inherit;
  text-decoration: none;
  transition: border-color 0.2s, background 0.2s, transform 0.2s var(--ease-out), box-shadow 0.2s;
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.04) inset;
}

.menu-btn:hover {
  border-color: rgba(232, 228, 220, 0.35);
  background: linear-gradient(155deg, rgba(56, 56, 56, 0.95) 0%, rgba(38, 38, 38, 0.98) 100%);
  transform: translateY(-2px);
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.28);
}

.menu-btn:active {
  transform: translateY(0);
}

.menu-btn-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.2rem;
  letter-spacing: -0.02em;
  color: var(--ink);
}

.menu-btn-sub {
  color: var(--muted);
  font-size: 0.88rem;
  line-height: 1.4;
}

.menu-back {
  color: var(--muted);
  font-size: 0.88rem;
  text-decoration: none;
}

.menu-back:hover {
  color: var(--ink);
}

.menu-section {
  margin-top: 1.35rem;
  padding-top: 1.15rem;
  border-top: 1px solid rgba(242, 240, 235, 0.1);
}

.menu-section-title {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.menu-section-lede {
  margin: 0.3rem 0 0.85rem;
  color: var(--muted);
  font-size: 0.88rem;
}

.menu-nav-compact {
  gap: 0.55rem;
}

.menu-nav-compact .menu-btn {
  padding: 0.9rem 1rem;
}

.menu-nav-compact .menu-btn-title {
  font-size: 1.05rem;
}

/* Shared site header navigation */
.top-nav {
  position: sticky;
  top: 0;
  z-index: 40;
  border-bottom: 1px solid rgba(242, 240, 235, 0.08);
  background: rgba(14, 14, 14, 0.82);
  backdrop-filter: blur(14px) saturate(1.1);
}

.top-nav-inner {
  width: min(1320px, calc(100% - 1.5rem));
  margin: 0 auto;
  min-height: 3.25rem;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.55rem 1rem;
  padding: 0.55rem 0;
}

.top-nav-brand {
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--muted);
  text-decoration: none;
  white-space: nowrap;
  transition: color 0.15s;
}

.top-nav-brand:hover {
  color: var(--ink);
}

.top-nav-menu {
  position: relative;
}

.top-nav-menu::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 100%;
  height: 0.55rem;
}

.top-nav-trigger {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  min-height: 2.4rem;
  padding: 0.4rem 0.9rem 0.4rem 1rem;
  border-radius: 999px;
  border: 1px solid rgba(232, 228, 220, 0.35);
  background: linear-gradient(180deg, #efebe3 0%, #e4dfd5 100%);
  color: var(--accent-ink);
  font: inherit;
  font-size: 0.92rem;
  font-weight: 700;
  text-decoration: none;
  cursor: pointer;
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.35) inset;
  transition: filter 0.15s, box-shadow 0.15s;
}

.top-nav-trigger:hover {
  filter: brightness(1.04);
}

.top-nav-menu:hover .top-nav-trigger,
.top-nav-menu:focus-within .top-nav-trigger {
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.35) inset,
    0 0 0 3px rgba(242, 240, 235, 0.12);
}

.top-nav-trigger-caret {
  width: 0.45rem;
  height: 0.45rem;
  border-right: 2px solid currentColor;
  border-bottom: 2px solid currentColor;
  transform: rotate(45deg) translateY(-1px);
  opacity: 0.7;
  transition: transform 0.18s var(--ease-out);
}

.top-nav-menu:hover .top-nav-trigger-caret,
.top-nav-menu:focus-within .top-nav-trigger-caret {
  transform: rotate(225deg) translateY(-1px);
}

.top-nav-panel {
  position: absolute;
  top: calc(100% + 0.45rem);
  left: 0;
  width: min(310px, calc(100vw - 2rem));
  padding: 0.5rem;
  border-radius: 16px;
  border: 1px solid rgba(242, 240, 235, 0.14);
  background: linear-gradient(180deg, #222222 0%, #1a1a1a 100%);
  box-shadow: 0 22px 48px rgba(0, 0, 0, 0.5);
  display: grid;
  gap: 0.35rem;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transform: translateY(-6px);
  transition: opacity 0.18s var(--ease-out), transform 0.18s var(--ease-out), visibility 0.18s;
}

.top-nav-menu:hover .top-nav-panel,
.top-nav-menu:focus-within .top-nav-panel {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateY(0);
}

.top-nav-item {
  display: grid;
  gap: 0.15rem;
  padding: 0.75rem 0.85rem;
  border-radius: 12px;
  color: inherit;
  text-decoration: none;
  border: 1px solid transparent;
  transition: background 0.15s, border-color 0.15s;
}

.top-nav-item:hover {
  background: rgba(255, 255, 255, 0.05);
  border-color: rgba(242, 240, 235, 0.1);
}

.top-nav-item.is-active {
  background: rgba(232, 228, 220, 0.12);
  border-color: rgba(232, 228, 220, 0.22);
}

.top-nav-item-title {
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--ink);
}

.top-nav-item-sub {
  font-size: 0.8rem;
  color: var(--muted);
}

.top-nav-group {
  display: grid;
  gap: 0.4rem;
  padding: 0.25rem 0.25rem 0.45rem;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(242, 240, 235, 0.08);
}

.top-nav-group.is-active {
  border-color: rgba(232, 228, 220, 0.22);
  background: rgba(232, 228, 220, 0.07);
}

.top-nav-group-head {
  margin: 0;
}

.top-nav-group-rooms {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.35rem;
  padding: 0 0.35rem 0.25rem 0.9rem;
  margin-left: 0.3rem;
  border-left: 2px solid rgba(232, 228, 220, 0.18);
}

.top-nav-room {
  padding: 0.52rem 0.45rem;
  border-radius: 9px;
  border: 1px solid rgba(242, 240, 235, 0.12);
  background: rgba(0, 0, 0, 0.22);
  color: var(--ink-soft);
  text-decoration: none;
  font-size: 0.8rem;
  font-weight: 700;
  text-align: center;
  transition: background 0.15s, border-color 0.15s, color 0.15s, transform 0.15s;
}

.top-nav-room:hover {
  color: var(--ink);
  border-color: rgba(242, 240, 235, 0.28);
  transform: translateY(-1px);
}

.top-nav-room.is-active {
  color: var(--accent-ink);
  background: var(--accent);
  border-color: var(--accent);
}

.top-nav-logout {
  margin-left: auto;
  color: var(--muted);
  font-size: 0.88rem;
  text-decoration: none;
  white-space: nowrap;
  transition: color 0.15s;
}

.top-nav-logout:hover {
  color: var(--ink);
}

.auth-page.has-top-nav {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
  padding: 0;
  min-height: 100vh;
}

.auth-page.has-top-nav .top-nav {
  align-self: stretch;
  width: 100%;
}

.auth-page.has-top-nav .auth-card {
  margin: 1.75rem 1.5rem;
}

@keyframes card-rise {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 720px) {
  .top-nav-inner {
    gap: 0.45rem 0.75rem;
  }

  .top-nav-logout {
    margin-left: auto;
  }
}

@media (prefers-reduced-motion: reduce) {
  .auth-card,
  .menu-btn,
  .top-nav-panel,
  .top-nav-room,
  .btn {
    animation: none;
    transition: none;
  }

  .menu-btn:hover {
    transform: none;
  }
}