:root {
  --color-bg: #071015;
  --color-surface: #101a21;
  --color-surface-raised: #17232d;
  --color-text: #edf6f8;
  --color-muted: #8ca3ae;
  --color-border: rgba(132, 170, 189, 0.18);
  --color-primary: #7ce0c0;
  --color-primary-contrast: #04110e;
  --color-success: #70dca1;
  --color-warning: #ffcf76;
  --color-danger: #ff8c78;
  --color-focus: #baf7e0;
  --font-body: "Segoe UI", "Helvetica Neue", sans-serif;
  --font-display: "Bahnschrift", "Segoe UI", sans-serif;
  --font-mono: "Cascadia Code", "Consolas", monospace;
  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.25rem;
  --text-2xl: 1.5rem;
  --text-3xl: 2rem;
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-12: 3rem;
  --radius-sm: 0.375rem;
  --radius-md: 0.625rem;
  --radius-lg: 0.875rem;
  --radius-xl: 1rem;
  --radius-pill: 999px;
  --ease-out: cubic-bezier(0.23, 1, 0.32, 1);
  --ease-in-out: cubic-bezier(0.77, 0, 0.175, 1);
  --duration-fast: 120ms;
  --duration-ui: 180ms;
  --duration-panel: 240ms;
  --shadow-panel: 0 22px 60px rgba(0, 0, 0, 0.28);
}

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

html {
  color-scheme: dark;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font-body);
  color: var(--color-text);
  background:
    radial-gradient(circle at top right, rgba(124, 224, 192, 0.13), transparent 30%),
    radial-gradient(circle at bottom left, rgba(255, 140, 120, 0.08), transparent 28%),
    linear-gradient(180deg, #061017 0%, #091319 100%);
}

a {
  color: inherit;
}

img {
  max-width: 100%;
}

code,
pre {
  font-family: var(--font-mono);
}

.app-shell {
  display: grid;
  grid-template-columns: 270px 1fr;
  min-height: 100vh;
}

.sidebar {
  padding: var(--space-8) var(--space-6);
  border-right: 1px solid var(--color-border);
  background: rgba(7, 16, 21, 0.9);
  display: flex;
  flex-direction: column;
  gap: var(--space-8);
}

.brand-lockup {
  display: flex;
  gap: var(--space-4);
  align-items: center;
}

.brand-mark {
  width: 48px;
  height: 48px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, rgba(124, 224, 192, 0.22), rgba(124, 224, 192, 0.08));
  border: 1px solid rgba(124, 224, 192, 0.28);
  color: var(--color-primary);
  font-weight: 700;
}

.brand-title {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 700;
}

.brand-subtitle {
  color: var(--color-muted);
  font-size: var(--text-sm);
}

.nav-list {
  display: grid;
  gap: 0.55rem;
}

.nav-link {
  text-decoration: none;
  color: var(--color-muted);
  padding: 0.9rem 1rem;
  border-radius: var(--radius-lg);
  border: 1px solid transparent;
  transition:
    transform var(--duration-fast) var(--ease-out),
    background-color var(--duration-ui) ease,
    border-color var(--duration-ui) ease,
    color var(--duration-ui) ease;
}

.nav-link.is-active,
.nav-link:hover {
  color: var(--color-text);
  background: rgba(255, 255, 255, 0.03);
  border-color: var(--color-border);
}

.sidebar-foot {
  margin-top: auto;
  display: grid;
  gap: var(--space-4);
}

.content {
  padding: var(--space-8);
}

.page-header {
  display: flex;
  justify-content: space-between;
  gap: var(--space-6);
  align-items: flex-start;
  margin-bottom: var(--space-8);
}

.eyebrow,
.section-kicker {
  margin: 0 0 var(--space-2);
  color: var(--color-primary);
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: var(--text-xs);
}

h1,
h2,
h3,
h4 {
  margin: 0;
  font-family: var(--font-display);
  text-wrap: balance;
}

h1 {
  font-size: clamp(2rem, 4vw, 3.4rem);
}

h2 {
  font-size: var(--text-2xl);
}

.muted,
.lede,
.detail-list,
.mini-note {
  color: var(--color-muted);
}

.header-card,
.surface,
.hero-panel,
.metric-card,
.notice {
  background: linear-gradient(180deg, rgba(18, 29, 37, 0.96), rgba(13, 22, 29, 0.96));
  border: 1px solid var(--color-border);
  border-radius: 22px;
  box-shadow: var(--shadow-panel);
}

.header-card {
  padding: var(--space-4) var(--space-6);
  min-width: 180px;
}

.header-label {
  color: var(--color-muted);
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

.header-value {
  margin-top: var(--space-2);
  font-size: var(--text-lg);
  font-weight: 600;
}

.notice {
  padding: 1rem 1.1rem;
  margin-bottom: var(--space-6);
}

.notice-success {
  border-color: rgba(112, 220, 161, 0.28);
}

.notice-danger {
  border-color: rgba(255, 140, 120, 0.35);
}

.notice-warning {
  border-color: rgba(255, 207, 118, 0.35);
}

.hero-panel,
.surface {
  padding: var(--space-6);
}

.hero-panel {
  display: grid;
  gap: var(--space-6);
}

.hero-grid,
.grid-two,
.chip-grid,
.button-row,
.form-inline-wrap {
  display: grid;
  gap: var(--space-4);
}

.hero-grid {
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
}

.metric-card {
  padding: var(--space-5, 1.25rem);
}

.metric-label {
  display: block;
  color: var(--color-muted);
  margin-bottom: var(--space-2);
}

.metric-value {
  font-size: 1.7rem;
}

.grid-two {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.wide-right {
  grid-template-columns: 380px minmax(0, 1fr);
}

.surface-head {
  display: flex;
  justify-content: space-between;
  gap: var(--space-4);
  align-items: center;
  margin-bottom: var(--space-4);
}

.surface.inset {
  background: rgba(255, 255, 255, 0.02);
  box-shadow: none;
  border-radius: 18px;
}

.button,
button,
select,
input,
textarea {
  font: inherit;
}

.button,
button[type="submit"] {
  min-height: 44px;
  border: 0;
  border-radius: var(--radius-lg);
  padding: 0.85rem 1.1rem;
  cursor: pointer;
  color: var(--color-primary-contrast);
  background: var(--color-primary);
  transition:
    transform var(--duration-fast) var(--ease-out),
    background-color var(--duration-ui) ease,
    opacity var(--duration-ui) ease;
}

.button:hover,
button[type="submit"]:hover {
  transform: translateY(-1px);
}

.button:active,
button[type="submit"]:active {
  transform: scale(0.97);
}

.button-ghost {
  background: transparent;
  color: var(--color-text);
  border: 1px solid var(--color-border);
}

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

.button-small {
  min-height: 38px;
  padding: 0.65rem 0.9rem;
}

.button-full {
  width: 100%;
}

.form-stack {
  display: grid;
  gap: var(--space-4);
}

.form-inline {
  display: flex;
  gap: var(--space-3);
  align-items: end;
}

.form-inline-wrap {
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  align-items: end;
}

label {
  display: grid;
  gap: var(--space-2);
  font-size: var(--text-sm);
  color: var(--color-muted);
}

input,
select,
textarea {
  width: 100%;
  border-radius: 14px;
  border: 1px solid rgba(132, 170, 189, 0.24);
  background: rgba(255, 255, 255, 0.03);
  color: var(--color-text);
  padding: 0.9rem 1rem;
}

select option,
select optgroup {
  color: #111827;
  background: #f8fafc;
}

input:focus-visible,
select:focus-visible,
textarea:focus-visible,
.button:focus-visible,
button:focus-visible,
a:focus-visible {
  outline: 2px solid var(--color-focus);
  outline-offset: 2px;
}

.center-panel {
  display: grid;
  place-items: center;
  min-height: calc(100vh - 220px);
}

.narrow {
  width: min(100%, 520px);
}

.code-block {
  overflow: auto;
  padding: 1rem;
  border-radius: 16px;
  border: 1px solid rgba(132, 170, 189, 0.18);
  background: rgba(0, 0, 0, 0.26);
  white-space: pre-wrap;
  word-break: break-word;
}

.code-list,
.detail-list {
  margin: 0;
  padding-left: 1.25rem;
}

.code-list li,
.detail-list li {
  margin-bottom: var(--space-2);
}

.qr-card {
  border-radius: 18px;
  background: white;
  padding: 1rem;
  width: min(280px, 100%);
}

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

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

th,
td {
  text-align: left;
  padding: 0.9rem 0.75rem;
  border-bottom: 1px solid rgba(132, 170, 189, 0.12);
  vertical-align: top;
}

th {
  color: var(--color-muted);
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.pill,
.chip {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  min-height: 34px;
  padding: 0.35rem 0.75rem;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(132, 170, 189, 0.18);
  background: rgba(255, 255, 255, 0.03);
  color: var(--color-text);
}

.pill-ok {
  border-color: rgba(112, 220, 161, 0.25);
  color: var(--color-success);
}

.pill-warning {
  border-color: rgba(255, 207, 118, 0.25);
  color: var(--color-warning);
}

.chip-grid {
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
}

.top-gap {
  margin-top: var(--space-6);
}

.tab-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: var(--space-3);
}

@media (max-width: 980px) {
  .app-shell,
  .grid-two,
  .wide-right {
    grid-template-columns: 1fr;
  }

  .sidebar {
    border-right: 0;
    border-bottom: 1px solid var(--color-border);
  }

  .page-header {
    flex-direction: column;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 1ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
  }
}