:root {
    color-scheme: light dark;
    --bg: #f5f6f8;
    --card: #ffffff;
    --text: #1c2230;
    --muted: #6b7280;
    --border: #dde1e7;
    --primary: #2f5fdb;
    --primary-dark: #244aad;
    --success-bg: #e6f7ee;
    --success-text: #157347;
    --error-bg: #fdeceb;
    --error-text: #b3261e;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    background: var(--bg);
    color: var(--text);
    font: 15px/1.5 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

.wrap {
    max-width: 640px;
    margin: 48px auto;
    padding: 32px;
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 12px;
}

h1 { margin: 0 0 4px; font-size: 1.5rem; }
.lede { margin: 0 0 24px; color: var(--muted); }

label { display: block; font-weight: 600; margin: 16px 0 6px; font-size: 0.9rem; }

input[type=text], input[type=email], select, textarea {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--border);
    border-radius: 8px;
    font: inherit;
    background: var(--card);
    color: var(--text);
}

textarea { resize: vertical; }

.row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }

button {
    margin-top: 24px;
    padding: 12px 20px;
    background: var(--primary);
    color: #fff;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
}
button:hover { background: var(--primary-dark); }

.alert { padding: 12px 16px; border-radius: 8px; margin-bottom: 16px; }
.alert ul { margin: 0; padding-left: 20px; }
.alert-success { background: var(--success-bg); color: var(--success-text); }
.alert-error { background: var(--error-bg); color: var(--error-text); }

.hp-field { position: absolute; left: -9999px; top: -9999px; }

.admin-link { margin-top: 24px; text-align: center; }
.admin-link a { color: var(--muted); font-size: 0.85rem; }