/* ===== Reset & base ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --color-bg: #f8f9fa;
  --color-surface: #ffffff;
  --color-border: #dee2e6;
  --color-text: #212529;
  --color-text-muted: #6c757d;
  --color-primary: #0d6efd;
  --color-primary-hover: #0b5ed7;
  --color-success: #198754;
  --color-success-bg: #d1e7dd;
  --color-error: #dc3545;
  --color-error-bg: #f8d7da;
  --radius: 8px;
  --shadow: 0 1px 3px rgba(0,0,0,.1), 0 1px 2px rgba(0,0,0,.06);
  font-size: 16px;
}

body {
  background: var(--color-bg);
  color: var(--color-text);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  line-height: 1.5;
  min-height: 100vh;
}

/* ===== Layout ===== */
.app-header {
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  padding: .75rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.app-header__title { font-weight: 600; font-size: 1rem; }

.container {
  max-width: 640px;
  margin: 2rem auto;
  padding: 0 1rem;
}

.container--narrow { max-width: 420px; }

/* ===== Card ===== */
.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 2rem;
}

.card__title { font-size: 1.25rem; font-weight: 600; margin-bottom: .25rem; }
.card__subtitle { color: var(--color-text-muted); font-size: .9rem; margin-bottom: 1.5rem; }

/* ===== Form ===== */
.check-form { display: flex; flex-direction: column; gap: 1rem; }

.form-group { display: flex; flex-direction: column; gap: .375rem; }

.form-label { font-size: .875rem; font-weight: 500; }

.form-input {
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: .5rem .75rem;
  font-size: 1rem;
  transition: border-color .15s;
  width: 100%;
}

.form-input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(13,110,253,.15);
}

.form-actions { display: flex; align-items: center; gap: 1rem; }

/* ===== Buttons ===== */
.btn {
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
  font-size: .9rem;
  font-weight: 500;
  padding: .5rem 1.25rem;
  transition: background .15s;
}

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

.btn--ghost {
  background: transparent;
  border: 1px solid var(--color-border);
  color: var(--color-text);
  font-size: .8rem;
}
.btn--ghost:hover { background: var(--color-bg); }

/* ===== Spinner (HTMX indicator) ===== */
.spinner { display: none; color: var(--color-text-muted); font-size: .875rem; }
.htmx-request .spinner { display: inline; }

/* ===== Results ===== */
.result-container { margin-top: 1.5rem; }

.result {
  border-radius: var(--radius);
  padding: 1rem 1.25rem;
}

.result--success {
  background: var(--color-success-bg);
  border: 1px solid #a3cfbb;
}

.result--error {
  background: var(--color-error-bg);
  border: 1px solid #f1aeb5;
}

.result__status {
  display: flex;
  align-items: center;
  gap: .5rem;
  margin-bottom: .5rem;
}

.result__icon { font-size: 1.1rem; font-weight: 700; }
.result--success .result__icon { color: var(--color-success); }
.result--error .result__icon { color: var(--color-error); }

.result__headline { font-weight: 600; }
.result__message { font-size: .9rem; margin-bottom: .75rem; }

.result__technical { margin-top: .5rem; }
.result__technical summary {
  cursor: pointer;
  font-size: .8rem;
  color: var(--color-text-muted);
  user-select: none;
}

.result__detail-body {
  margin-top: .5rem;
  background: rgba(0,0,0,.04);
  border-radius: 4px;
  font-family: "Cascadia Code", "Fira Mono", ui-monospace, monospace;
  font-size: .8rem;
  padding: .75rem;
  white-space: pre-wrap;
  word-break: break-word;
}

/* ===== Alerts ===== */
.alert {
  border-radius: var(--radius);
  font-size: .875rem;
  margin-bottom: 1rem;
  padding: .75rem 1rem;
}

.alert--error {
  background: var(--color-error-bg);
  border: 1px solid #f1aeb5;
  color: #842029;
}

/* ===== Login page ===== */
.login-page { display: flex; align-items: center; justify-content: center; min-height: 100vh; }
.login-page .container { margin: 0; }