:root {
  color-scheme: light;
  --bg: #f6f7f9;
  --card-bg: #ffffff;
  --panel: var(--card-bg);
  --text: #18202a;
  --muted: #667085;
  --border: #d8dde6;
  --primary: #1f6feb;
  --primary-dark: #174ea6;
  --danger: #b42318;
  --warning-bg: #fff7d6;
  --warning-border: #e6c767;
  --warning-text: #4f3f00;
  --success-bg: #edf9f0;
  --success-border: #8ccf9f;
  --success-text: #166534;
  --error-bg: #fff0f0;
  --error-border: #ef9a9a;
  --error-text: #991b1b;
  --info-bg: #eef4ff;
  --info-border: #9ec5ff;
  --info-text: #174ea6;
}

:root[data-theme="light"] {
  color-scheme: light;
  --bg: #f6f7f9;
  --card-bg: #ffffff;
  --panel: var(--card-bg);
  --text: #18202a;
  --muted: #667085;
  --border: #d8dde6;
  --primary: #1f6feb;
  --primary-dark: #174ea6;
  --danger: #b42318;
  --warning-bg: #fff7d6;
  --warning-border: #e6c767;
  --warning-text: #4f3f00;
  --success-bg: #edf9f0;
  --success-border: #8ccf9f;
  --success-text: #166534;
  --error-bg: #fff0f0;
  --error-border: #ef9a9a;
  --error-text: #991b1b;
  --info-bg: #eef4ff;
  --info-border: #9ec5ff;
  --info-text: #174ea6;
}

:root[data-theme="dark"] {
  color-scheme: dark;
  --bg: #101418;
  --card-bg: #171d24;
  --panel: var(--card-bg);
  --text: #eef2f6;
  --muted: #a5afbd;
  --border: #2b3440;
  --primary: #69a2ff;
  --primary-dark: #3d7fe0;
  --danger: #ff6b6b;
  --warning-bg: #2c260f;
  --warning-border: #79621b;
  --warning-text: #ffe9a3;
  --success-bg: #10291a;
  --success-border: #2f8f4e;
  --success-text: #b8f2c8;
  --error-bg: #341516;
  --error-border: #a33b3f;
  --error-text: #ffc4c4;
  --info-bg: #10243c;
  --info-border: #356aa8;
  --info-text: #c7ddff;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.5;
}

a {
  color: var(--primary);
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 24px;
  background: var(--panel);
  border-bottom: 1px solid var(--border);
}

.site-footer {
  display: flex;
  justify-content: center;
  gap: 16px;
  color: var(--muted);
  padding: 24px;
}

.site-footer a {
  color: var(--muted);
}

.brand {
  color: var(--text);
  font-weight: 700;
  text-decoration: none;
}

nav {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

nav a {
  color: var(--text);
  text-decoration: none;
}

.page {
  width: min(960px, calc(100% - 32px));
  margin: 40px auto;
}

.page.waterfall-page {
  width: min(1760px, calc(100% - 32px));
}

.hero,
.auth-card,
.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 28px;
}

.hero {
  text-align: center;
}

.eyebrow {
  color: var(--muted);
  font-size: 14px;
  margin: 0 0 8px;
}

h1,
h2 {
  line-height: 1.2;
  margin: 0 0 16px;
}

.lead,
.muted {
  color: var(--muted);
}

.auth-card {
  max-width: 460px;
  margin: 0 auto;
}

.field {
  margin-bottom: 16px;
}

label {
  display: block;
  font-weight: 600;
  margin-bottom: 6px;
}

input,
select {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 10px 12px;
  font: inherit;
  background: var(--card-bg);
  color: var(--text);
}

button,
.button {
  display: inline-block;
  border: 1px solid var(--primary);
  border-radius: 6px;
  background: var(--primary);
  color: #ffffff;
  cursor: pointer;
  font: inherit;
  padding: 10px 14px;
  text-decoration: none;
}

button:hover,
.button:hover {
  background: var(--primary-dark);
}

.button.secondary,
button.secondary {
  background: var(--card-bg);
  color: var(--primary);
}

.button.secondary:hover,
button.secondary:hover {
  background: #eef4ff;
}

.button.danger,
button.danger {
  border-color: var(--danger);
  background: var(--danger);
}

button:disabled {
  cursor: not-allowed;
  opacity: 0.65;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}

.inline-form {
  margin-top: 14px;
}

.claim-form {
  max-width: 420px;
}

.table-form {
  display: grid;
  gap: 8px;
  min-width: 180px;
}

.stacked-actions {
  display: grid;
  gap: 8px;
  margin-bottom: 8px;
}

.danger-zone {
  border-top: 1px solid var(--border);
  margin-top: 24px;
  padding-top: 20px;
}

.dashboard {
  display: grid;
  gap: 18px;
}

.status-strip {
  align-items: center;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.waterfall-header {
  align-items: end;
  display: flex;
  gap: 18px;
  justify-content: space-between;
}

.analyzer-select-form {
  display: grid;
  gap: 8px;
  min-width: min(320px, 100%);
}

.waterfall-stack {
  display: grid;
  gap: 14px;
}

.waterfall-stream-panel {
  display: grid;
  gap: 8px;
  padding-inline: 16px;
}

/* roadmap 3.5-core: position:relative anchor for .waterfall-overlay-canvas
   - deliberately NOT .waterfall-stream itself (that one scrolls its own
   rows internally via overflow-y:auto); this wrapper doesn't scroll, so
   the absolutely-positioned overlay stays pinned over the panel's visible
   viewport regardless of how far the row stack underneath is scrolled. */
.waterfall-stream-wrap {
  position: relative;
}

.waterfall-stream {
  background: #080000;
  border: 1px solid var(--border);
  border-radius: 6px;
  display: flex;
  flex-direction: column;
  gap: 0;
  line-height: 0;
  max-height: 70vh;
  overflow-y: auto;
}

.waterfall-overlay-canvas {
  height: 100%;
  inset: 0;
  position: absolute;
  width: 100%;
}

.waterfall-tile {
  display: grid;
  gap: 12px;
}

.waterfall-canvas {
  background: #05070a;
  border: 0;
  display: block;
  flex: 0 0 2px;
  height: 2px;
  image-rendering: pixelated;
  margin: 0;
  padding: 0;
  vertical-align: top;
  width: 100%;
}

.waterfall-stream .waterfall-canvas {
  background: transparent;
}

.waterfall-tooltip {
  background: rgba(5, 8, 14, 0.94);
  border: 1px solid var(--border);
  border-radius: 6px;
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.28);
  color: var(--text);
  font-size: 12px;
  line-height: 1.35;
  padding: 6px 8px;
  pointer-events: none;
  position: fixed;
  transform: translate(12px, 12px);
  white-space: nowrap;
  z-index: 20;
}

.waterfall-tooltip strong {
  display: block;
  font-size: 13px;
}

.waterfall-tooltip[hidden] {
  display: none;
}

.waterfall-error {
  min-height: 96px;
  outline: 1px solid var(--danger);
}

.waterfall-meta {
  align-items: center;
  color: var(--muted);
  display: flex;
  flex-wrap: nowrap;
  font-size: 13px;
  gap: 6px 12px;
  justify-content: space-between;
  overflow-x: auto;
  white-space: nowrap;
}

.waterfall-meta strong {
  color: var(--text);
}

.account-settings {
  display: grid;
  gap: 18px;
  max-width: 720px;
  margin: 0 auto;
}

.settings-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 24px;
}

.settings-card h2 {
  font-size: 18px;
  margin-bottom: 18px;
}

.profile-list {
  display: grid;
  grid-template-columns: max-content 1fr;
  gap: 8px 16px;
}

.profile-list dt {
  color: var(--muted);
}

.profile-list dd {
  margin: 0;
  overflow-wrap: anywhere;
}

.status-badge {
  display: inline-block;
  border-radius: 999px;
  font-size: 13px;
  padding: 3px 9px;
}

.status-badge.success {
  background: var(--success-bg);
  color: var(--success-text);
}

.status-badge.error {
  background: var(--error-bg);
  color: var(--error-text);
}

.status-badge.warning-badge {
  background: var(--warning-bg);
  color: var(--text);
}

.status-badge.severity-low {
  background: var(--info-bg);
  color: var(--info-text);
}

.status-badge.severity-medium {
  background: var(--warning-bg);
  color: var(--warning-text);
}

.status-badge.severity-high {
  background: var(--error-bg);
  color: var(--error-text);
}

.status-badge.severity-critical,
.status-badge.critical {
  background: var(--error-text);
  color: var(--error-bg);
  font-weight: 600;
}

.nav-badge {
  display: inline-block;
  border-radius: 999px;
  background: var(--error-text);
  color: var(--error-bg);
  font-size: 11px;
  font-weight: 600;
  padding: 1px 6px;
  margin-left: 4px;
}

tr.row-flagged {
  background: var(--warning-bg);
}

.track-graph {
  margin-bottom: 24px;
}

.track-graph-canvas {
  width: 100%;
  max-width: 640px;
  height: 160px;
  border: 1px solid var(--border);
  border-radius: 6px;
}

.status-pending {
  background: var(--info-bg);
  color: var(--info-text);
}

.status-redeemed,
.status-registered {
  background: var(--success-bg);
  color: var(--success-text);
}

.status-expired,
.status-disabled {
  background: var(--warning-bg);
  color: var(--warning-text);
}

.invite-code {
  display: inline-block;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--bg);
  color: var(--text);
  font-family: ui-monospace, SFMono-Regular, Consolas, "Liberation Mono", monospace;
  padding: 4px 7px;
}

.responsive-table {
  overflow-x: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
}

th,
td {
  border-bottom: 1px solid var(--border);
  padding: 10px 8px;
  text-align: left;
  vertical-align: middle;
}

th {
  color: var(--muted);
  font-size: 13px;
  font-weight: 600;
}

.compact {
  padding: 6px 10px;
}

.warning,
.message {
  border: 1px solid var(--warning-border);
  background: var(--warning-bg);
  color: var(--warning-text);
  border-radius: 8px;
  padding: 12px 14px;
  margin-bottom: 16px;
}

.warning a,
.message a {
  color: inherit;
  font-weight: 600;
}

.message.success {
  border-color: var(--success-border);
  background: var(--success-bg);
  color: var(--success-text);
}

.message.info {
  border-color: var(--info-border);
  background: var(--info-bg);
  color: var(--info-text);
}

.message.error {
  border-color: var(--error-border);
  background: var(--error-bg);
  color: var(--error-text);
}

.message.warning {
  border-color: var(--warning-border);
  background: var(--warning-bg);
  color: var(--warning-text);
}

.prose {
  max-width: 760px;
  margin: 0 auto;
}

.prose h2 {
  margin-top: 22px;
  font-size: 20px;
}

.form-errors,
.field-errors {
  color: var(--danger);
  font-size: 14px;
  margin-top: 6px;
}

.field-errors ul,
.form-errors ul {
  margin: 0;
  padding-left: 18px;
}

@media (max-width: 640px) {
  .site-header {
    align-items: flex-start;
    flex-direction: column;
  }

  .page {
    margin: 24px auto;
  }

  .hero,
  .auth-card,
  .panel,
  .settings-card {
    padding: 20px;
  }

  .waterfall-header {
    align-items: stretch;
    flex-direction: column;
  }

  .waterfall-stream-panel {
    padding-inline: 20px;
  }

  .profile-list {
    grid-template-columns: 1fr;
  }
}