/* ALVA canonical application tokens */
:root {
  --color-ink: #111111;
  --color-surface: #ffffff;
  --color-canvas: #f4f7f7;
  --color-primary: #007c78;
  --color-primary-strong: #005f5c;
  --color-primary-soft: #e2f5f3;
  --color-muted: #667085;
  --color-border: #dfe5e7;
  --color-success: #16794a;
  --color-success-soft: #e5f6ed;
  --color-warning: #825700;
  --color-warning-soft: #fff4d6;
  --font-sans: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --radius-sm: 0.5rem;
  --radius-md: 0.75rem;
  --radius-lg: 1rem;
  --shadow-sm: 0 1px 3px rgba(17, 17, 17, 0.08);
  --shadow-md: 0 14px 40px rgba(17, 17, 17, 0.08);
  --focus-ring: 0 0 0 3px rgba(0, 141, 135, 0.28);
}

* { box-sizing: border-box; }
html { color: var(--color-ink); background: var(--color-canvas); font-family: var(--font-sans); }
body { margin: 0; min-width: 20rem; }
a { color: inherit; }
button, input, select, textarea { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
:focus-visible { outline: none; box-shadow: var(--focus-ring); }
.gtm-frame { display: none; visibility: hidden; }

.skip-link {
  position: fixed; left: var(--space-4); top: var(--space-4); z-index: 100;
  padding: var(--space-3) var(--space-4); border-radius: var(--radius-sm);
  color: var(--color-surface); background: var(--color-ink); transform: translateY(-180%);
}
.skip-link:focus { transform: translateY(0); }

.app-frame { min-height: 100vh; display: grid; grid-template-columns: 16rem minmax(0, 1fr); }
.sidebar {
  position: sticky; top: 0; height: 100vh; display: flex; flex-direction: column;
  padding: var(--space-6) var(--space-4); color: #d7e2e1; background: #132322;
}
.brand { display: inline-flex; align-items: center; gap: var(--space-3); font-weight: 800; letter-spacing: 0.08em; text-decoration: none; }
.brand-mark {
  display: grid; width: 2.25rem; height: 2.25rem; place-items: center;
  border-radius: var(--radius-sm); color: var(--color-surface); background: var(--color-primary);
}
.sidebar nav { display: grid; gap: var(--space-2); margin-top: var(--space-10); }
.nav-item { display: flex; min-height: 2.75rem; align-items: center; gap: var(--space-3); padding: 0 var(--space-3); border-radius: var(--radius-sm); text-decoration: none; }
.nav-item:hover, .nav-item.active { color: var(--color-surface); background: rgba(255, 255, 255, 0.1); }
.sidebar-footer { margin-top: auto; font-size: 0.8125rem; color: #a9b8b7; }
.status-dot { display: inline-block; width: 0.5rem; height: 0.5rem; margin-right: var(--space-2); border-radius: 50%; background: #4cd39a; }
.workspace { min-width: 0; }
.topbar {
  min-height: 4.75rem; display: flex; align-items: center; justify-content: space-between;
  padding: var(--space-3) var(--space-8); border-bottom: 1px solid var(--color-border); background: rgba(255,255,255,.92);
}
.topbar > div { display: grid; gap: var(--space-1); }
.user-menu { display: flex; min-height: 2.75rem; align-items: center; gap: var(--space-2); text-decoration: none; }
.avatar { display: grid; width: 2.25rem; height: 2.25rem; place-items: center; border-radius: 50%; color: var(--color-primary-strong); background: var(--color-primary-soft); font-size: .75rem; font-weight: 800; }
.main-content { width: min(100%, 82rem); margin: 0 auto; padding: var(--space-8); }
.breadcrumb { display: flex; gap: var(--space-2); color: var(--color-muted); font-size: .875rem; }
.page-header { display: flex; align-items: end; justify-content: space-between; gap: var(--space-6); margin: var(--space-6) 0 var(--space-8); }
h1, h2, p { margin-top: 0; }
h1 { margin-bottom: var(--space-3); font-size: clamp(2rem, 4vw, 3rem); line-height: 1.08; letter-spacing: -.035em; }
h2 { margin-bottom: 0; font-size: 1.25rem; }
.eyebrow { margin-bottom: var(--space-2); color: var(--color-primary-strong); font-size: .75rem; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; }
.lede { max-width: 42rem; margin-bottom: 0; color: var(--color-muted); line-height: 1.65; }
.button { display: inline-flex; min-height: 2.75rem; align-items: center; justify-content: center; padding: 0 var(--space-5); border: 1px solid transparent; border-radius: var(--radius-sm); font-weight: 750; text-decoration: none; cursor: pointer; }
.button-primary { color: var(--color-surface); background: var(--color-primary); }
.button-primary:hover { background: var(--color-primary-strong); }
.button-secondary { border-color: var(--color-border); color: var(--color-ink); background: var(--color-surface); }
.button-block { width: 100%; }
.metric-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: var(--space-4); }
.metric-card, .panel, .auth-card { border: 1px solid var(--color-border); border-radius: var(--radius-lg); background: var(--color-surface); box-shadow: var(--shadow-sm); }
.metric-card { display: grid; gap: var(--space-3); padding: var(--space-6); color: var(--color-muted); }
.metric-card strong { color: var(--color-ink); font-size: 2rem; letter-spacing: -.04em; }
.metric-card small { font-size: .8125rem; }
.panel { margin-top: var(--space-6); overflow: hidden; }
.panel-heading { display: flex; align-items: center; justify-content: space-between; gap: var(--space-4); padding: var(--space-6); }
.table-region { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
th, td { padding: var(--space-4) var(--space-6); border-top: 1px solid var(--color-border); text-align: left; }
th { color: var(--color-muted); background: #fafcfc; font-size: .75rem; letter-spacing: .06em; text-transform: uppercase; }
.badge { display: inline-flex; padding: var(--space-1) var(--space-2); border-radius: 999px; font-size: .75rem; font-weight: 750; }
.badge-success { color: var(--color-success); background: var(--color-success-soft); }
.badge-warning { color: var(--color-warning); background: var(--color-warning-soft); }
.auth-shell { min-height: calc(100vh - 9rem); display: grid; place-items: center; }
.auth-card { width: min(100%, 30rem); padding: var(--space-10); box-shadow: var(--shadow-md); }
.auth-brand { width: fit-content; margin-bottom: var(--space-10); }
.help-text { margin: var(--space-4) 0 0; color: var(--color-muted); font-size: .8125rem; line-height: 1.5; }

@media (max-width: 760px) {
  .app-frame { grid-template-columns: 1fr; }
  .sidebar { position: static; width: 100%; height: auto; padding: var(--space-4); }
  .sidebar nav { display: flex; margin-top: var(--space-4); overflow-x: auto; }
  .sidebar-footer { display: none; }
  .topbar { padding: var(--space-3) var(--space-4); }
  .topbar .eyebrow, .user-menu > span:last-child { display: none; }
  .main-content { padding: var(--space-6) var(--space-4); }
  .page-header { align-items: stretch; flex-direction: column; }
  .page-header .button { width: 100%; }
  .metric-grid { grid-template-columns: 1fr; }
  .auth-shell { min-height: auto; padding-top: var(--space-6); }
  .auth-card { padding: var(--space-6); }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; animation-duration: .01ms !important; }
}