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

/* Ensure [hidden] wins over utility display: rules (oauth buttons, panels). */
[hidden] {
  display: none !important;
}

html {
  color-scheme: dark;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  min-height: 100vh;
  min-height: 100dvh;
  font-family: var(--font-body);
  color: var(--text-primary);
  background: var(--bg-atmosphere);
  background-attachment: fixed;
  line-height: var(--lh-body);
  overflow-x: clip;
}

.page-shell {
  min-height: 100vh;
  min-height: 100dvh;
  display: grid;
  grid-template-rows: auto 1fr;
  padding-left: env(safe-area-inset-left, 0px);
  padding-right: env(safe-area-inset-right, 0px);
  padding-bottom: env(safe-area-inset-bottom, 0px);
}

.app-shell {
  min-height: 100vh;
  min-height: 100dvh;
  display: grid;
  grid-template-columns: var(--nav-width) 1fr;
  grid-template-rows: var(--header-height) 1fr;
  grid-template-areas:
    "nav top"
    "nav workspace";
}

.app-nav {
  grid-area: nav;
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
  padding: var(--space-5) var(--space-4);
  border-right: 1px solid var(--border-subtle);
  background:
    linear-gradient(180deg, rgba(22, 32, 51, 0.92), rgba(11, 18, 32, 0.96)),
    var(--surface-secondary);
  backdrop-filter: blur(16px);
}

.app-nav .brand {
  margin: 0;
  font-size: 1.35rem;
  color: var(--text-primary);
  letter-spacing: -0.02em;
}

.app-nav .nav-tenant {
  margin: calc(var(--space-2) * -1) 0 0;
  color: var(--text-muted);
  font-size: var(--text-caption);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.app-nav nav {
  display: grid;
  gap: var(--space-1);
}

.app-nav a {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: 0.7rem 0.85rem;
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  text-decoration: none;
  border: 1px solid transparent;
  transition: background var(--motion-fast) var(--ease-out),
    color var(--motion-fast) var(--ease-out),
    border-color var(--motion-fast) var(--ease-out);
}

.app-nav a:hover {
  color: var(--text-primary);
  background: rgba(45, 212, 191, 0.08);
}

.app-nav a[aria-current="page"] {
  color: var(--text-primary);
  background: rgba(45, 212, 191, 0.12);
  border-color: rgba(45, 212, 191, 0.28);
  box-shadow: var(--glow-teal);
}

.app-top {
  grid-area: top;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding: 0 var(--space-5);
  border-bottom: 1px solid var(--border-subtle);
  background: color-mix(in srgb, var(--surface-elevated) 82%, transparent);
  backdrop-filter: blur(14px);
}

.app-workspace {
  grid-area: workspace;
  min-width: 0;
  overflow: auto;
}

h1,
h2,
h3,
.brand {
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: -0.015em;
  line-height: var(--lh-tight);
}

.section-title {
  margin: 0 0 var(--space-3);
  font-family: var(--font-body);
  font-size: var(--text-section);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
}

a {
  color: var(--brand-teal-300);
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
[tabindex]:focus-visible {
  outline: none;
  box-shadow: var(--shadow-focus);
}

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

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

.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;
}

.skip-link {
  position: absolute;
  left: var(--space-3);
  top: -3rem;
  z-index: 1000;
  background: var(--brand-teal-500);
  color: var(--text-on-brand);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-sm);
  font-weight: 600;
}

.skip-link:focus {
  top: var(--space-3);
}

@keyframes fade-rise {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes pulse-soft {
  0%,
  100% {
    opacity: 0.45;
  }
  50% {
    opacity: 1;
  }
}

@keyframes quorum-glow {
  0%,
  100% {
    box-shadow: 0 0 0 0 rgba(45, 212, 191, 0.0);
  }
  50% {
    box-shadow: var(--glow-teal);
  }
}

@media (max-width: 1023px) {
  .app-shell {
    grid-template-columns: 1fr;
    grid-template-areas:
      "top"
      "workspace";
  }

  .app-nav {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
    scroll-behavior: auto !important;
  }
}