:root {
    --bg: #f6f8fb;
    --card: #ffffff;
    --text: #1f2937;
    --muted: #6b7280;
    --primary: #2563eb;
    --primary-hover: #1d4ed8;
    --border: #e5e7eb;
    --error: #dc2626;
    --success: #059669;
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.05), 0 1px 2px rgba(0, 0, 0, 0.03);
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue",
        Arial, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.5;
}

header {
    max-width: 900px;
    margin: 0 auto;
    padding: 32px 20px 16px;
}

.brand {
    display: flex;
    align-items: center;
    gap: 16px;
}

.brand-logo {
    width: 140px;
    height: auto;
    flex-shrink: 0;
}

.brand-text {
    min-width: 0;
}

header h1 {
    margin: 0 0 8px;
    font-size: 28px;
    line-height: 1.1;
}

.subtitle {
    margin: 0;
    color: var(--muted);
    font-size: 14px;
}

.subtitle a { color: var(--primary); }

@media (max-width: 560px) {
    .brand { gap: 12px; }
    .brand-logo { width: 88px; }
    header h1 { font-size: 22px; }
}

main {
    max-width: 900px;
    margin: 0 auto;
    padding: 0 20px 40px;
}

.card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 20px 24px;
    margin-bottom: 16px;
    box-shadow: var(--shadow);
}

.card h2 {
    margin: 0 0 16px;
    font-size: 16px;
    font-weight: 600;
}

.field {
    display: flex;
    flex-direction: column;
    margin-bottom: 12px;
    flex: 1;
}

.field label {
    font-size: 13px;
    font-weight: 500;
    margin-bottom: 6px;
    color: var(--text);
}

.field input,
.field select {
    padding: 9px 12px;
    border: 1px solid var(--border);
    border-radius: 8px;
    font-size: 14px;
    font-family: inherit;
    background: white;
    transition: border-color 0.15s, box-shadow 0.15s;
}

.field input:focus,
.field select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

.row {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.row .field {
    min-width: 200px;
}

.muted {
    color: var(--muted);
    font-size: 13px;
    margin: 8px 0 0;
}

.autocomplete {
    position: relative;
}

.suggestions {
    position: absolute;
    z-index: 20;
    top: 100%;
    left: 0;
    right: 0;
    margin: 4px 0 0;
    padding: 4px;
    list-style: none;
    background: white;
    border: 1px solid var(--border);
    border-radius: 8px;
    max-height: 240px;
    overflow-y: auto;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

.suggestions li {
    padding: 8px 10px;
    border-radius: 6px;
    cursor: pointer;
    font-size: 14px;
}

.suggestions li:hover,
.suggestions li.active {
    background: #eff6ff;
}

.suggestions li .meta {
    display: block;
    color: var(--muted);
    font-size: 12px;
    margin-top: 2px;
}

.checkbox-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 6px 12px;
}

.check {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    cursor: pointer;
    padding: 4px 0;
}

.check input { margin: 0; }

.radio-row {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.radio {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    padding: 10px 12px;
    border: 1px solid var(--border);
    border-radius: 8px;
    cursor: pointer;
    font-size: 14px;
    transition: border-color 0.15s, background 0.15s;
}

.radio:has(input:checked) {
    border-color: var(--primary);
    background: #eff6ff;
}

.radio input { margin-top: 3px; }
.radio span { display: flex; flex-direction: column; gap: 2px; }
.radio em { font-style: normal; font-size: 13px; }

select#station-select {
    font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
    font-size: 13px;
    padding: 6px;
}

select#station-select option {
    padding: 4px 6px;
}

.windrose-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 12px;
    gap: 12px;
}

.windrose-header h2 { margin: 0; }

.windrose-chart {
    width: 100%;
    height: 520px;
    min-height: 480px;
}

.windrose-controls {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px 12px;
    margin: 0 0 12px;
}

.radio.inline {
    padding: 6px 10px;
}

.actions {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    justify-content: flex-end;
    margin-top: 8px;
}

button {
    padding: 10px 18px;
    border-radius: 8px;
    border: 1px solid var(--border);
    background: white;
    font-size: 14px;
    font-weight: 500;
    font-family: inherit;
    cursor: pointer;
    transition: background 0.15s, border-color 0.15s, transform 0.05s;
}

button:hover { background: #f3f4f6; }
button:active { transform: translateY(1px); }
button:disabled { opacity: 0.6; cursor: not-allowed; }

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

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

.status {
    margin-top: 16px;
    padding: 12px 14px;
    border-radius: 8px;
    font-size: 14px;
}

.status.info { background: #eff6ff; color: #1e3a8a; border: 1px solid #bfdbfe; }
.status.error { background: #fef2f2; color: var(--error); border: 1px solid #fecaca; }
.status.success { background: #ecfdf5; color: var(--success); border: 1px solid #a7f3d0; }
.status.loading { background: #fffbeb; color: #92400e; border: 1px solid #fde68a; }

.table-wrap {
    overflow-x: auto;
    border: 1px solid var(--border);
    border-radius: 8px;
}

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

th, td {
    padding: 8px 10px;
    border-bottom: 1px solid var(--border);
    text-align: left;
    white-space: nowrap;
}

th {
    background: #f9fafb;
    font-weight: 600;
    position: sticky;
    top: 0;
}

tr:last-child td { border-bottom: none; }
tr:nth-child(even) { background: #fafbfc; }

footer {
    max-width: 900px;
    margin: 0 auto;
    padding: 16px 20px 32px;
    color: var(--muted);
    font-size: 13px;
    text-align: center;
}

footer a { color: var(--primary); }

/* The HTML `hidden` attribute must always win against our flex/grid layouts. */
[hidden] { display: none !important; }

/* Auth bar in header */
.auth-bar {
    margin-top: 12px;
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 13px;
    color: var(--muted);
    padding-top: 8px;
    border-top: 1px solid var(--border);
}

.auth-bar #auth-label {
    flex: 1;
    color: var(--text);
    font-weight: 500;
}

.link-button {
    background: none;
    border: none;
    color: var(--primary);
    cursor: pointer;
    padding: 4px 8px;
    font-size: 13px;
    border-radius: 4px;
}

.link-button:hover { background: rgba(37, 99, 235, 0.08); }

/* Login card */
.login-card { max-width: 520px; margin: 24px auto; }
.login-card .actions { margin-top: 16px; }

/* Admin panel */
.card-header-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 12px;
}

.card-header-row h2 { margin: 0; }

.token-display {
    font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
    font-size: 12px;
    background: #f3f4f6;
    padding: 2px 6px;
    border-radius: 4px;
    word-break: break-all;
    user-select: all;
}

.badge {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 600;
}
.badge.good { background: #d1fae5; color: #065f46; }
.badge.bad  { background: #fee2e2; color: #991b1b; }
.badge.muted { background: #e5e7eb; color: #4b5563; }

.status.info { background: #eff6ff; color: #1e3a8a; border: 1px solid #bfdbfe; }
.status.success { background: #ecfdf5; color: #065f46; border: 1px solid #a7f3d0; }
.status.error { background: #fef2f2; color: #991b1b; border: 1px solid #fecaca; }
.status.loading { background: #fef3c7; color: #92400e; border: 1px solid #fde68a; }

@media (max-width: 600px) {
    header { padding: 20px 16px 8px; }
    main { padding: 0 16px 24px; }
    .card { padding: 16px; }
    .actions { justify-content: stretch; }
    .actions button { flex: 1; }
}