/* Deheimu — neutral placeholder design (NF-04).
 *
 * Deliberately plain: one accent, a system font stack, light and dark from the same tokens. The
 * real design comes from Claude Design later and replaces the :root tokens and perhaps the font —
 * not the structure below. Colour values live here once and nowhere else (CLAUDE.md §7).
 */

:root {
  color-scheme: light dark;

  --font-sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;

  --color-bg: #f6f7f9;
  --color-surface: #ffffff;
  --color-text: #1c2430;
  --color-muted: #5b6573;
  --color-border: #d9dee5;
  --color-accent: #2f5d8a;
  --color-accent-contrast: #ffffff;
  --color-danger: #a23b3b;

  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 1rem;
  --space-4: 1.5rem;
  --space-5: 2.5rem;

  --radius: 6px;
  --tap-target: 44px;
  --content-max: 72rem;
}

@media (prefers-color-scheme: dark) {
  :root {
    --color-bg: #14181e;
    --color-surface: #1c222b;
    --color-text: #e6eaf0;
    --color-muted: #9aa5b4;
    --color-border: #2c3542;
    --color-accent: #7fb0e0;
    --color-accent-contrast: #0f1520;
    --color-danger: #e08080;
  }
}

* {
  box-sizing: border-box;
}

html {
  font-family: var(--font-sans);
  font-size: 100%;
  line-height: 1.5;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: var(--color-bg);
  color: var(--color-text);
}

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

code {
  font-family: var(--font-mono);
  font-size: 0.9em;
}

/* Masthead — product name, tenant name (F-02) and navigation of enabled modules (F-05). */
.masthead {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-2) var(--space-4);
  padding: var(--space-2) var(--space-3);
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
}

.masthead__brand {
  font-weight: 700;
  font-size: 1.125rem;
  text-decoration: none;
  color: var(--color-text);
  min-height: var(--tap-target);
  display: inline-flex;
  align-items: center;
}

.masthead__nav {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.masthead__link {
  display: inline-flex;
  align-items: center;
  min-height: var(--tap-target);
  padding: 0 var(--space-3);
  border-radius: var(--radius);
  text-decoration: none;
  color: var(--color-text);
}

.masthead__link:hover,
.masthead__link:focus-visible {
  background: var(--color-bg);
}

/* Content */
.content {
  flex: 1;
  width: 100%;
  max-width: var(--content-max);
  margin: 0 auto;
  padding: var(--space-4) var(--space-3);
}

.page-title {
  margin: 0 0 var(--space-2);
  font-size: 1.75rem;
  line-height: 1.2;
}

.lead {
  margin: 0 0 var(--space-4);
  color: var(--color-muted);
}

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

.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: var(--space-3) var(--space-4);
}

.module-list {
  margin: 0;
  padding-left: var(--space-4);
}

/* Wide content scrolls inside its own container, never the page (NF-05). */
.table-scroll {
  overflow-x: auto;
}

/* Forms (NF-05: 44px targets, no JS needed) */
.form {
  max-width: 28rem;
}

.form__row {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  margin-bottom: var(--space-3);
}

.form__row--inline {
  flex-direction: row;
  align-items: center;
  gap: var(--space-2);
}

.form__row label {
  font-weight: 600;
}

.form__row input:not([type="checkbox"]) {
  min-height: var(--tap-target);
  padding: 0 var(--space-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-surface);
  color: var(--color-text);
  font: inherit;
}

.form__row input[type="checkbox"] {
  width: 1.25rem;
  height: 1.25rem;
}

.form__error {
  margin-bottom: var(--space-3);
  padding: var(--space-2) var(--space-3);
  border: 1px solid var(--color-danger);
  border-radius: var(--radius);
  color: var(--color-danger);
}

.form__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-3);
}

.button {
  display: inline-flex;
  align-items: center;
  min-height: var(--tap-target);
  padding: 0 var(--space-3);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-surface);
  color: var(--color-text);
  font: inherit;
  cursor: pointer;
}

.button--primary {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: var(--color-accent-contrast);
}

.choice-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.masthead__user {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

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

.masthead__form {
  margin: 0;
}

button.masthead__link {
  background: none;
  border: 0;
  font: inherit;
  cursor: pointer;
}

.form__row--split {
  flex-direction: row;
  flex-wrap: wrap;
  gap: var(--space-3);
}

.form__row--split > div {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  flex: 1 1 8rem;
}

.form__row select {
  min-height: var(--tap-target);
  padding: 0 var(--space-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-surface);
  color: var(--color-text);
  font: inherit;
}

.form__notice {
  margin-bottom: var(--space-3);
  padding: var(--space-2) var(--space-3);
  border: 1px solid var(--color-accent);
  border-radius: var(--radius);
}

.button--small {
  min-height: 2.25rem;
  padding: 0 var(--space-2);
  font-size: 0.875rem;
}

.button--on {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: var(--color-accent-contrast);
}

.inline-form {
  display: inline-flex;
  gap: var(--space-1);
  align-items: center;
  margin: 0 var(--space-1) var(--space-1) 0;
}

.inline-form input[type="email"] {
  min-height: 2.25rem;
  padding: 0 var(--space-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-surface);
  color: var(--color-text);
  font: inherit;
}

.card + .card,
.form + .card,
.card + .form,
.form + .form {
  margin-top: var(--space-4);
}

.card__title {
  margin: 0 0 var(--space-2);
  font-size: 1.125rem;
}

.grid {
  display: grid;
  gap: var(--space-3);
  grid-template-columns: repeat(auto-fill, minmax(18rem, 1fr));
  margin-bottom: var(--space-4);
}

.plain-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.plain-list li + li {
  margin-top: var(--space-1);
}

/* Tables scroll inside their container; nothing shrinks below its content width (NF-05). */
.table {
  width: 100%;
  border-collapse: collapse;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
}

.table th,
.table td {
  padding: var(--space-2) var(--space-3);
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid var(--color-border);
  white-space: nowrap;
}

.table td ul {
  white-space: normal;
}

.masthead__mandant {
  font-weight: 600;
}

/* Live tiles (F-07, NF-09): state is visible, an old value is never mistaken for a current one. */
.live {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  align-items: baseline;
  margin: var(--space-2) 0;
  font-size: 0.875rem;
}

.live[data-live-state="none"] .live__status,
.live[data-live-state="stale"] .live__status {
  color: var(--color-muted);
}

.live[data-live-state="stale"] .live__values {
  text-decoration: line-through;
  color: var(--color-muted);
}

.live--reconnecting .live__time::after {
  content: " …";
}

/* Footer */
.footer {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2) var(--space-4);
  padding: var(--space-3);
  border-top: 1px solid var(--color-border);
  color: var(--color-muted);
  font-size: 0.875rem;
}

@media (min-width: 48rem) {
  .content {
    padding: var(--space-5) var(--space-4);
  }
}