/*
 * KBSV Keycloak login theme (US-034, D-022 · ADR-020 Fluitsignaal).
 * White auth card centred on the brand-dark hero band. Fixed single look (pre-auth,
 * no light/dark toggle). Fonts self-hosted where supplied (resources/fonts, drop-in
 * open item) with a robust system fallback — no CDN (ADR-020, GDPR stance).
 */

:root {
  --kbsv-band: #0a1020;
  --kbsv-primary: #1d4ed8;
  --kbsv-primary-strong: #1a45c0;
  --kbsv-accent: #f97316;
  --kbsv-surface: #ffffff;
  --kbsv-ink: #0f172a;
  --kbsv-muted: #5b6b82;
  --kbsv-border: rgba(15, 23, 42, 0.14);
  --kbsv-error: #b3261e;
  --kbsv-error-bg: #fdecea;
  --kbsv-info: #1d4ed8;
  --kbsv-info-bg: #eaf0fe;
  --kbsv-display: 'Barlow Condensed', 'Arial Narrow', system-ui, sans-serif;
  --kbsv-body: 'Roboto', system-ui, -apple-system, 'Segoe UI', sans-serif;
}

* {
  box-sizing: border-box;
}

html.kbsv-html,
body.kbsv-body {
  margin: 0;
  padding: 0;
  min-height: 100vh;
}

body.kbsv-body {
  font-family: var(--kbsv-body);
  color: var(--kbsv-ink);
  -webkit-font-smoothing: antialiased;
}

/* Full-viewport brand-dark band with the Fluitsignaal hero gradient. */
.kbsv-band {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 32px 16px;
  background:
    radial-gradient(1200px 600px at 50% -10%, rgba(29, 78, 216, 0.35), transparent 60%),
    linear-gradient(160deg, #0a1020 0%, #0d1730 55%, #0a1020 100%);
}

.kbsv-shell {
  width: 100%;
  max-width: 360px;
  display: flex;
  flex-direction: column;
  align-items: center;
}

/* Logo lockup above the card. */
.kbsv-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 22px;
}
.kbsv-brand__mark {
  display: block;
}
.kbsv-brand__text {
  display: flex;
  flex-direction: column;
  line-height: 1.05;
}
.kbsv-brand__name {
  font-family: var(--kbsv-display);
  font-weight: 800;
  font-size: 1.6rem;
  letter-spacing: 0.04em;
  color: #ffffff;
  text-transform: uppercase;
}
.kbsv-brand__tag {
  font-size: 0.8rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.66);
  font-weight: 600;
}

/* White auth card. */
.kbsv-card {
  width: 100%;
  background: var(--kbsv-surface);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 16px;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.45);
  padding: 28px 26px 22px;
}
.kbsv-card__title {
  font-family: var(--kbsv-display);
  text-transform: uppercase;
  letter-spacing: 0.03em;
  font-weight: 800;
  font-size: 1.7rem;
  margin: 0 0 4px;
  color: var(--kbsv-ink);
}
.kbsv-card__lead {
  margin: 0 0 18px;
  color: var(--kbsv-muted);
  font-size: 0.92rem;
}

/* Form fields. */
.kbsv-form {
  display: flex;
  flex-direction: column;
}
.kbsv-field {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 14px;
}
.kbsv-field label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--kbsv-ink);
}
.kbsv-field input {
  height: 44px;
  padding: 0 12px;
  font-size: 0.95rem;
  font-family: inherit;
  color: var(--kbsv-ink);
  background: #fff;
  border: 1px solid var(--kbsv-border);
  border-radius: 10px;
  transition:
    border-color 0.15s,
    box-shadow 0.15s;
}
.kbsv-field input:hover {
  border-color: rgba(15, 23, 42, 0.28);
}
.kbsv-field input:focus-visible {
  outline: none;
  border-color: var(--kbsv-primary);
  box-shadow: 0 0 0 3px rgba(29, 78, 216, 0.28);
}
.kbsv-field input[aria-invalid='true'] {
  border-color: var(--kbsv-error);
}

/* Flat blue pill submit button. */
.kbsv-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 46px;
  margin-top: 6px;
  padding: 0 18px;
  font-family: var(--kbsv-display);
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  text-decoration: none;
  color: #fff;
  background: var(--kbsv-primary);
  border: none;
  border-radius: 999px;
  cursor: pointer;
  transition:
    background 0.15s,
    transform 0.05s;
}
.kbsv-btn:hover {
  background: var(--kbsv-primary-strong);
}
.kbsv-btn:active {
  transform: translateY(1px);
}
.kbsv-btn:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px rgba(29, 78, 216, 0.4);
}

/* Text link under the form (forgot-password, back-to-login). */
.kbsv-link {
  display: block;
  width: 100%;
  margin-top: 12px;
  text-align: center;
  color: var(--kbsv-primary);
  font-size: 0.85rem;
  font-weight: 600;
  text-decoration: none;
}
.kbsv-link:hover {
  text-decoration: underline;
}
.kbsv-link:focus-visible {
  outline: none;
  border-radius: 6px;
  box-shadow: 0 0 0 3px rgba(29, 78, 216, 0.4);
}

/* Alerts. Error = red; info = blue. Orange is never used for text (contrast). */
.kbsv-alert {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  padding: 10px 12px;
  border-radius: 10px;
  font-size: 0.88rem;
  margin-bottom: 16px;
  border: 1px solid transparent;
}
.kbsv-alert--error {
  background: var(--kbsv-error-bg);
  border-color: rgba(179, 38, 30, 0.35);
  color: var(--kbsv-error);
}
.kbsv-alert--info,
.kbsv-alert--warning,
.kbsv-alert--success {
  background: var(--kbsv-info-bg);
  border-color: rgba(29, 78, 216, 0.25);
  color: var(--kbsv-info);
}
.kbsv-fielderror {
  display: block;
  color: var(--kbsv-error);
  font-size: 0.82rem;
  margin: -6px 0 12px;
}

.kbsv-foot {
  margin: 18px 0 0;
  text-align: center;
  font-size: 0.78rem;
  color: var(--kbsv-muted);
}

@media (max-width: 400px) {
  .kbsv-card {
    padding: 22px 18px 18px;
  }
}