:root {
    --bg: #f4f5f7;
    --surface: #ffffff;
    --text: #0f172a;
    --muted: #475569;
    --line: #e2e8f0;
    --brand: #0f766e;
    --danger: #b91c1c;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: radial-gradient(circle at top right, #e6fffa, var(--bg) 40%);
    color: var(--text);
}

.wrap {
    max-width: 980px;
    margin: 0 auto;
    padding: 20px 16px 40px;
}

.topbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
    padding: 12px 0;
    margin-bottom: 20px;
    border-bottom: 1px solid var(--line);
}

.brand {
    font-weight: 700;
    color: var(--brand);
    letter-spacing: 0.04em;
}

.meta {
    color: var(--muted);
    font-size: 14px;
}

.panel {
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: 14px;
    padding: 20px;
    box-shadow: 0 8px 26px rgba(15, 23, 42, 0.06);
}

.btn {
    border: 0;
    border-radius: 8px;
    padding: 10px 14px;
    cursor: pointer;
    color: #fff;
    background: var(--brand);
    text-decoration: none;
    display: inline-block;
}

.btn-danger {
    background: var(--danger);
}

input {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--line);
    border-radius: 8px;
    margin-top: 6px;
    margin-bottom: 12px;
}

label {
    font-size: 14px;
    color: var(--muted);
    font-weight: 600;
}

.error {
    border: 1px solid #fecaca;
    background: #fef2f2;
    color: #7f1d1d;
    border-radius: 8px;
    padding: 10px;
    margin-bottom: 12px;
}

.cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
    gap: 12px;
}

.card {
    border: 1px solid var(--line);
    border-radius: 12px;
    padding: 14px;
    background: #fff;
}

.card h3 {
    margin: 0 0 8px;
    color: var(--muted);
    font-size: 13px;
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

.card p {
    margin: 0;
    font-size: 28px;
    font-weight: 700;
}

.actions {
    display: flex;
    gap: 8px;
    align-items: center;
}

form.inline {
    margin: 0;
}