:root {
  --bg: #fafaf9;
  --surface: #ffffff;
  --surface-hover: #f5f5f4;
  --border: #e7e5e4;
  --border-strong: #d6d3d1;
  --text: #1c1917;
  --text-muted: #78716c;
  --text-faint: #a8a29e;

  --accent: #4f46e5;
  --accent-hover: #4338ca;
  --accent-soft: #eef2ff;
  --accent-soft-text: #4338ca;

  --danger: #dc2626;
  --danger-soft: #fef2f2;
  --danger-soft-text: #b91c1c;

  --warning: #d97706;
  --warning-soft: #fffbeb;
  --warning-soft-text: #b45309;

  --success: #059669;
  --success-soft: #ecfdf5;
  --success-soft-text: #047857;

  --radius-sm: 6px;
  --radius: 10px;
  --radius-lg: 14px;
  --shadow-sm: 0 1px 2px rgba(28, 25, 23, 0.04);
  --shadow: 0 1px 3px rgba(28, 25, 23, 0.06), 0 1px 2px rgba(28, 25, 23, 0.04);
  --shadow-md: 0 4px 12px rgba(28, 25, 23, 0.08);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0c0a09;
    --surface: #1c1917;
    --surface-hover: #292524;
    --border: #292524;
    --border-strong: #44403c;
    --text: #f5f5f4;
    --text-muted: #a8a29e;
    --text-faint: #6b6560;

    --accent: #818cf8;
    --accent-hover: #a5b4fc;
    --accent-soft: #1e1b4b;
    --accent-soft-text: #c7d2fe;

    --danger: #f87171;
    --danger-soft: #2a1414;
    --danger-soft-text: #fca5a5;

    --warning: #fbbf24;
    --warning-soft: #2a1f0d;
    --warning-soft-text: #fcd34d;

    --success: #34d399;
    --success-soft: #0d2420;
    --success-soft-text: #6ee7b7;

    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.2);
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.3), 0 1px 2px rgba(0, 0, 0, 0.2);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
  }

  html {
    color-scheme: dark;
  }
}

* {
  box-sizing: border-box;
  padding: 0;
  margin: 0;
}

html {
  height: 100%;
}

html,
body {
  max-width: 100vw;
  overflow-x: hidden;
}

body {
  min-height: 100%;
  display: flex;
  flex-direction: column;
  color: var(--text);
  background: var(--bg);
  font-family: var(--font-geist-sans), -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 15px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a {
  color: inherit;
  text-decoration: none;
}

button {
  font: inherit;
  color: inherit;
}

/* ---------- Layout ---------- */

.page {
  width: 100%;
  max-width: 720px;
  margin: 0 auto;
  padding: 40px 24px 80px;
}

.stack {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

/* ---------- Typography ---------- */

.page-title {
  font-size: 22px;
  font-weight: 600;
  letter-spacing: -0.01em;
  margin-bottom: 4px;
}

.page-subtitle {
  color: var(--text-muted);
  font-size: 14px;
  margin-bottom: 24px;
}

.muted {
  color: var(--text-muted);
  font-size: 13px;
}

.faint {
  color: var(--text-faint);
  font-size: 12px;
}

/* ---------- Buttons ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  height: 38px;
  padding: 0 16px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-strong);
  background: var(--surface);
  color: var(--text);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.12s ease, border-color 0.12s ease, opacity 0.12s ease;
}

.btn:hover:not(:disabled) {
  background: var(--surface-hover);
}

.btn:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

.btn-primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

.btn-primary:hover:not(:disabled) {
  background: var(--accent-hover);
  border-color: var(--accent-hover);
}

.btn-subtle {
  background: transparent;
  border-color: transparent;
  color: var(--text-muted);
}

.btn-subtle:hover:not(:disabled) {
  background: var(--surface-hover);
  color: var(--text);
}

.btn-sm {
  height: 32px;
  padding: 0 12px;
  font-size: 13px;
}

.btn-block {
  width: 100%;
}

/* ---------- Forms ---------- */

.field {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 14px;
}

.field label {
  font-size: 13px;
  font-weight: 500;
  color: var(--text-muted);
}

.input,
.textarea,
select.input {
  width: 100%;
  padding: 9px 12px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-strong);
  background: var(--surface);
  color: var(--text);
  font-size: 14px;
  font-family: inherit;
  transition: border-color 0.12s ease, box-shadow 0.12s ease;
}

.input:focus,
.textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

.input:disabled,
.textarea:disabled {
  background: var(--surface-hover);
  color: var(--text-faint);
}

.textarea {
  resize: vertical;
  line-height: 1.5;
}

.checkbox-row {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
}

.checkbox-row input {
  width: 16px;
  height: 16px;
  accent-color: var(--accent);
}

/* ---------- Cards ---------- */

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  padding: 20px;
}

.card + .card {
  margin-top: 12px;
}

.card-section {
  border-top: 1px solid var(--border);
  padding-top: 16px;
  margin-top: 16px;
}

.card-section:first-child {
  border-top: none;
  padding-top: 0;
  margin-top: 0;
}

.card-section-title {
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 8px;
}

/* ---------- Badges ---------- */

.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 2px 9px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  white-space: nowrap;
}

.badge-accent {
  background: var(--accent-soft);
  color: var(--accent-soft-text);
}

.badge-danger {
  background: var(--danger-soft);
  color: var(--danger-soft-text);
}

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

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

.badge-neutral {
  background: var(--surface-hover);
  color: var(--text-muted);
}

/* ---------- Alerts ---------- */

.alert {
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  margin-bottom: 14px;
}

.alert-danger {
  background: var(--danger-soft);
  color: var(--danger-soft-text);
}

.alert-info {
  background: var(--accent-soft);
  color: var(--accent-soft-text);
}

/* ---------- Empty states ---------- */

.empty-state {
  text-align: center;
  padding: 48px 24px;
  color: var(--text-muted);
  font-size: 14px;
}

/* ---------- Top nav (dashboard) ---------- */

.topnav {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
  height: 60px;
  border-bottom: 1px solid var(--border);
  background: color-mix(in srgb, var(--bg) 85%, transparent);
  backdrop-filter: blur(8px);
}

.topnav-inner {
  width: 100%;
  max-width: 960px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
  font-weight: 600;
  font-size: 15px;
  letter-spacing: -0.01em;
}

.brand-mark {
  width: 22px;
  height: 22px;
  border-radius: 6px;
  background: linear-gradient(135deg, var(--accent), #a855f7);
  flex-shrink: 0;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
  /* Flex items don't shrink below their content size by default, so without
     min-width:0 this row would push .topnav-inner (and the page) wider than
     the viewport on narrow screens instead of scrolling internally. */
  min-width: 0;
  flex: 1 1 auto;
  overflow-x: auto;
  scrollbar-width: none;
}

.nav-links::-webkit-scrollbar {
  display: none;
}

.nav-link {
  flex-shrink: 0;
  padding: 7px 12px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  font-weight: 500;
  color: var(--text-muted);
  white-space: nowrap;
  transition: background 0.12s ease, color 0.12s ease;
}

.nav-link:hover {
  background: var(--surface-hover);
  color: var(--text);
}

.nav-link.active {
  background: var(--accent-soft);
  color: var(--accent-soft-text);
}

.user-menu {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.user-email {
  font-size: 13px;
  color: var(--text-muted);
}

@media (max-width: 640px) {
  .topnav {
    padding: 0 12px;
  }

  .topnav-inner {
    gap: 8px;
  }

  .brand {
    font-size: 0;
    gap: 0;
  }

  .user-email {
    display: none;
  }
}

/* ---------- Auth pages ---------- */

.auth-shell {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.auth-card {
  width: 100%;
  max-width: 380px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  padding: 32px;
}

.auth-header {
  text-align: center;
  margin-bottom: 24px;
}

.auth-header .brand-mark {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  margin: 0 auto 16px;
}

.auth-title {
  font-size: 19px;
  font-weight: 600;
  letter-spacing: -0.01em;
  margin-bottom: 4px;
}

.auth-footer {
  text-align: center;
  margin-top: 20px;
  font-size: 13px;
  color: var(--text-muted);
}

.auth-footer a {
  color: var(--accent);
  font-weight: 500;
}

.auth-footer a:hover {
  text-decoration: underline;
}

/* ---------- Tables ---------- */

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}

.data-table th {
  text-align: left;
  font-weight: 500;
  color: var(--text-muted);
  padding: 8px 12px;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}

.data-table td {
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}

.data-table tr:last-child td {
  border-bottom: none;
}

.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
}

/* ---------- Briefing items ---------- */

.briefing-item {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 14px 16px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--surface);
}

.briefing-item-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.briefing-item-category {
  font-size: 13px;
  font-weight: 600;
}