/* Didino Admin design system (2026)
   Stack: native CSS custom properties + semantic component classes.
   Tailwind was evaluated; see backend/README.md for rationale.
   Typography: Manrope loaded from App.razor (Google Fonts). */

:root {
  --font-sans: "Manrope", system-ui, sans-serif;

  --color-ink: #0b1220;
  --color-ink-soft: #1a2436;
  --color-slate: #475569;
  --color-muted: #64748b;
  --color-border: #e2e8f0;
  --color-border-strong: #cbd5e1;
  --color-surface: #ffffff;
  --color-canvas: #eef2f7;
  --color-canvas-tint: #e8eef6;

  --color-accent: #0f766e;
  --color-accent-hover: #0d9488;
  --color-accent-soft: #ccfbf1;
  --color-accent-ink: #134e4a;

  --color-danger: #b91c1c;
  --color-danger-soft: #fee2e2;
  --color-success: #15803d;
  --color-success-soft: #dcfce7;
  --color-warning: #a16207;
  --color-warning-soft: #fef3c7;

  --radius-sm: 0.375rem;
  --radius-md: 0.625rem;
  --radius-lg: 1rem;
  --radius-xl: 1.25rem;

  --shadow-sm: 0 1px 2px rgb(15 23 42 / 0.05);
  --shadow-md: 0 4px 16px rgb(15 23 42 / 0.06), 0 1px 3px rgb(15 23 42 / 0.04);
  --shadow-lg: 0 12px 40px rgb(15 23 42 / 0.1);

  --sidebar-width: 15.5rem;
  --focus-ring: 0 0 0 3px rgb(15 118 110 / 0.35);
  --transition: 140ms ease;
}

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

html {
  color-scheme: light;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font-sans);
  font-size: 0.9375rem;
  line-height: 1.5;
  color: var(--color-ink);
  background:
    radial-gradient(1200px 600px at 10% -10%, rgb(15 118 110 / 0.08), transparent 55%),
    radial-gradient(900px 500px at 100% 0%, rgb(30 64 175 / 0.06), transparent 50%),
    var(--color-canvas);
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3 {
  margin: 0 0 0.5rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--color-ink);
}

h1 { font-size: 1.75rem; line-height: 1.2; }
h2 { font-size: 1.2rem; margin-top: 1.75rem; }
h3 { font-size: 1.05rem; }

p {
  margin: 0 0 1rem;
}

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

a:hover {
  color: var(--color-accent-hover);
  text-decoration: underline;
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: none;
  box-shadow: var(--focus-ring);
}

/* —— Shell / layout —— */

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

.admin-shell.has-sidebar {
  grid-template-columns: var(--sidebar-width) 1fr;
}

.admin-sidebar {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  padding: 1.25rem 1rem;
  background: linear-gradient(180deg, var(--color-ink) 0%, var(--color-ink-soft) 100%);
  color: #e2e8f0;
  min-height: 100vh;
  position: sticky;
  top: 0;
  align-self: start;
}

.admin-brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.35rem 0.5rem 0.75rem;
  border-bottom: 1px solid rgb(255 255 255 / 0.08);
}

.admin-brand-mark {
  display: grid;
  place-items: center;
  width: 2.25rem;
  height: 2.25rem;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, #14b8a6, #0f766e);
  color: #fff;
  font-weight: 700;
  font-size: 0.85rem;
  letter-spacing: 0.02em;
  flex-shrink: 0;
}

.admin-brand-text {
  display: flex;
  flex-direction: column;
  gap: 0.1rem;
  min-width: 0;
}

.admin-brand-name {
  font-weight: 700;
  font-size: 1rem;
  color: #f8fafc;
  letter-spacing: -0.01em;
}

.admin-brand-sub {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: #94a3b8;
}

.admin-nav {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  flex: 1;
}

.admin-nav a,
.nav-link {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.55rem 0.75rem;
  border-radius: var(--radius-md);
  color: #cbd5e1;
  text-decoration: none;
  font-weight: 500;
  font-size: 0.9rem;
  transition: background var(--transition), color var(--transition);
}

.admin-nav a:hover,
.nav-link:hover {
  background: rgb(255 255 255 / 0.06);
  color: #f8fafc;
  text-decoration: none;
}

.admin-nav a.active,
.nav-link.active {
  background: rgb(20 184 166 / 0.18);
  color: #5eead4;
  box-shadow: inset 0 0 0 1px rgb(45 212 191 / 0.25);
}

.admin-nav a:focus-visible,
.nav-link:focus-visible {
  box-shadow: var(--focus-ring);
}

.nav-logout {
  margin-top: auto;
  padding-top: 0.75rem;
  border-top: 1px solid rgb(255 255 255 / 0.08);
}

.nav-user {
  display: block;
  font-size: 0.75rem;
  color: #94a3b8;
  margin-bottom: 0.5rem;
  padding: 0 0.5rem;
  word-break: break-all;
}

.admin-main {
  padding: 1.75rem 2rem 2.5rem;
  max-width: 72rem;
  width: 100%;
}

.admin-main--auth {
  max-width: none;
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 2rem 1.25rem;
}

/* —— Page chrome —— */

.page-header {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.page-header__title {
  margin: 0;
}

.page-header__lead {
  margin: 0.35rem 0 0;
  color: var(--color-muted);
  max-width: 42rem;
}

.page-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: center;
}

.section {
  margin-bottom: 1.75rem;
}

.section-title {
  margin: 0 0 0.75rem;
  font-size: 1.05rem;
}

/* —— Cards / panels —— */

.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  padding: 1.25rem 1.35rem;
}

.card--flush {
  padding: 0;
  overflow: hidden;
}

.card--login {
  width: 100%;
  max-width: 26rem;
  padding: 2rem 1.75rem 1.75rem;
  box-shadow: var(--shadow-lg);
  border-color: rgb(226 232 240 / 0.9);
}

.login-brand {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}

.login-brand .admin-brand-mark {
  width: 3rem;
  height: 3rem;
  font-size: 1rem;
  border-radius: var(--radius-lg);
}

.login-brand h1 {
  margin: 0;
  font-size: 1.5rem;
}

.login-brand p {
  margin: 0;
  color: var(--color-muted);
  font-size: 0.9rem;
}

/* —— KPI —— */

.kpi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(11.5rem, 1fr));
  gap: 0.85rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.kpi-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 1rem 1.1rem;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.kpi-card__label {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-muted);
}

.kpi-card__value {
  font-size: 1.65rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--color-ink);
  line-height: 1.1;
}

.kpi-card__meta {
  font-size: 0.8rem;
  color: var(--color-slate);
}

.kpi-list {
  line-height: 1.7;
  margin: 0;
  padding-left: 1.15rem;
}

/* —— Forms —— */

.login-form,
.form-grid {
  display: grid;
  gap: 0.9rem;
}

.form-grid {
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
}

.form-grid .full {
  grid-column: 1 / -1;
}

label {
  display: grid;
  gap: 0.35rem;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--color-slate);
}

label:has(> input[type="checkbox"]) {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 500;
  color: var(--color-ink);
}

input[type="text"],
input[type="password"],
input[type="email"],
input[type="number"],
input[type="search"],
select,
textarea {
  width: 100%;
  font: inherit;
  color: var(--color-ink);
  background: var(--color-surface);
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-md);
  padding: 0.55rem 0.75rem;
  transition: border-color var(--transition), box-shadow var(--transition);
}

input::placeholder,
textarea::placeholder {
  color: #94a3b8;
}

input:hover,
select:hover,
textarea:hover {
  border-color: #94a3b8;
}

input:focus,
select:focus,
textarea:focus {
  border-color: var(--color-accent);
}

textarea {
  resize: vertical;
  min-height: 5rem;
}

input[type="checkbox"] {
  width: 1.05rem;
  height: 1.05rem;
  accent-color: var(--color-accent);
  flex-shrink: 0;
}

.toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-bottom: 1rem;
  align-items: center;
}

.toolbar input {
  max-width: 18rem;
  flex: 1;
}

.filter-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

/* —— Buttons —— */

button,
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  font: inherit;
  font-weight: 600;
  font-size: 0.875rem;
  line-height: 1.2;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  padding: 0.5rem 0.9rem;
  cursor: pointer;
  background: var(--color-accent);
  color: #fff;
  text-decoration: none;
  transition: background var(--transition), border-color var(--transition), color var(--transition), box-shadow var(--transition);
}

button:hover,
.btn:hover {
  background: var(--color-accent-hover);
  color: #fff;
  text-decoration: none;
}

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

.btn-secondary,
button.btn-secondary,
.actions button,
.timeline-step button,
.toolbar button {
  background: var(--color-surface);
  color: var(--color-ink);
  border-color: var(--color-border-strong);
}

.btn-secondary:hover,
button.btn-secondary:hover,
.actions button:hover,
.timeline-step button:hover,
.toolbar button:hover {
  background: var(--color-canvas-tint);
  color: var(--color-ink);
  border-color: #94a3b8;
}

.btn-ghost,
.nav-logout button {
  background: transparent;
  color: #e2e8f0;
  border-color: rgb(148 163 184 / 0.45);
  width: 100%;
}

.btn-ghost:hover,
.nav-logout button:hover {
  background: rgb(255 255 255 / 0.08);
  color: #fff;
  border-color: rgb(148 163 184 / 0.7);
}

.btn-danger {
  background: var(--color-danger);
  color: #fff;
}

.btn-link,
a.btn-link {
  background: transparent;
  color: var(--color-accent);
  border: none;
  padding: 0.35rem 0.5rem;
  font-weight: 600;
}

.btn-link:hover,
a.btn-link:hover {
  background: var(--color-accent-soft);
  color: var(--color-accent-ink);
  text-decoration: none;
}

.form-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  align-items: center;
  margin-top: 1.25rem;
}

/* —— Tables —— */

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

.data {
  width: 100%;
  border-collapse: collapse;
  background: var(--color-surface);
}

.data th,
.data td {
  padding: 0.7rem 0.9rem;
  text-align: left;
  border-bottom: 1px solid var(--color-border);
  vertical-align: middle;
}

.data th {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-muted);
  background: #f8fafc;
}

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

.data tbody tr:hover td {
  background: #f8fafc;
}

.data .actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
}

.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.15rem 0.5rem;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
  background: #f1f5f9;
  color: var(--color-slate);
}

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

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

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

/* —— Feedback —— */

.error,
.alert-error {
  color: var(--color-danger);
  background: var(--color-danger-soft);
  border: 1px solid #fecaca;
  border-radius: var(--radius-md);
  padding: 0.65rem 0.85rem;
  margin: 0 0 1rem;
}

.ok,
.alert-ok {
  color: var(--color-success);
  background: var(--color-success-soft);
  border: 1px solid #bbf7d0;
  border-radius: var(--radius-md);
  padding: 0.65rem 0.85rem;
  margin: 0 0 1rem;
}

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

.loading {
  color: var(--color-muted);
  font-style: italic;
}

.mono {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.85em;
  word-break: break-all;
}

.kv {
  display: grid;
  gap: 0.55rem;
  margin: 0;
}

.kv > div {
  display: grid;
  grid-template-columns: 9rem 1fr;
  gap: 0.75rem;
  align-items: baseline;
}

.kv dt {
  margin: 0;
  color: var(--color-muted);
  font-size: 0.8rem;
  font-weight: 600;
}

.kv dd {
  margin: 0;
}

.code-block {
  margin: 0.75rem 0 0;
  padding: 0.85rem 1rem;
  overflow: auto;
  max-height: 28rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  background: #0b1220;
  color: #e2e8f0;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.78rem;
  line-height: 1.45;
  white-space: pre-wrap;
  word-break: break-word;
}

/* —— Domain widgets —— */

.preview {
  background: #0b1220;
  color: #e2e8f0;
  border: 1px solid var(--color-ink-soft);
  border-radius: var(--radius-lg);
  padding: 1rem 1.1rem;
  white-space: pre-wrap;
  font-family: ui-monospace, "Cascadia Code", "Segoe UI Mono", monospace;
  font-size: 0.8rem;
  line-height: 1.55;
  overflow-x: auto;
}

.timeline-step {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr)) auto;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
  align-items: center;
}

@media (max-width: 900px) {
  .timeline-step {
    grid-template-columns: 1fr;
  }
}

.valid.modified:not([type=checkbox]) {
  outline: 2px solid #16a34a;
  outline-offset: 1px;
}

.invalid {
  outline: 2px solid var(--color-danger);
  outline-offset: 1px;
}

.validation-message {
  color: var(--color-danger);
  font-size: 0.8rem;
}

/* —— Blazor error UI —— */

#blazor-error-ui {
  background: var(--color-warning-soft);
  color: var(--color-warning);
  bottom: 0;
  box-shadow: 0 -4px 20px rgb(15 23 42 / 0.12);
  display: none;
  left: 0;
  padding: 0.75rem 1.5rem;
  position: fixed;
  width: 100%;
  z-index: 1000;
  font-weight: 600;
}

#blazor-error-ui .dismiss {
  cursor: pointer;
  position: absolute;
  right: 0.9rem;
  top: 0.55rem;
}

#blazor-error-ui .reload {
  color: var(--color-accent-ink);
  margin-left: 0.5rem;
}

@media (max-width: 860px) {
  .admin-shell.has-sidebar {
    grid-template-columns: 1fr;
  }

  .admin-sidebar {
    position: static;
    min-height: auto;
  }

  .admin-nav {
    flex-direction: row;
    flex-wrap: wrap;
  }

  .nav-logout {
    width: 100%;
  }

  .admin-main {
    padding: 1.25rem;
  }
}