* {
    box-sizing: border-box;
}

body {
    margin: 0;
    min-height: 100vh;
    display: grid;
    place-items: center;
    padding: 24px;
    background: #f6f8fb;
    color: #172033;
    font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    letter-spacing: 0;
}

.auth-card {
    width: 100%;
    max-width: 420px;
    padding: 30px;
    background: #ffffff;
    border: 1px solid #d9e2ec;
    border-radius: 8px;
    box-shadow: 0 12px 30px rgba(15, 23, 42, 0.08);
}

.auth-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 24px;
}

.auth-mark {
    width: 36px;
    height: 36px;
    display: grid;
    place-items: center;
    border-radius: 8px;
    background: #0f766e;
    color: #ffffff;
    font-weight: 800;
}

h1 {
    margin: 0;
    font-size: 1.35rem;
}

p {
    margin: 8px 0 0;
    color: #68758a;
    line-height: 1.55;
}

label {
    display: block;
    margin-bottom: 6px;
    font-weight: 700;
}

input {
    width: 100%;
    min-height: 42px;
    padding: 10px 12px;
    border: 1px solid #d9e2ec;
    border-radius: 6px;
    font: inherit;
}

button {
    width: 100%;
    min-height: 42px;
    border: 0;
    border-radius: 6px;
    background: #0f766e;
    color: #ffffff;
    font: inherit;
    font-weight: 800;
    cursor: pointer;
}

.form-row {
    margin-top: 16px;
}

.alert {
    margin-top: 18px;
    padding: 12px;
    border-radius: 8px;
    background: #fee2e2;
    color: #991b1b;
    font-weight: 700;
}