:root {
    --bg: #f5f7fb;
    --card: #ffffff;
    --text: #111827;
    --muted: #6b7280;
    --line: #d1d5db;
    --brand: #2563eb;
    --brand-hover: #1d4ed8;
    --danger-bg: #fef2f2;
    --danger-text: #991b1b;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    min-height: 100vh;
    font-family: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
    background: var(--bg);
    color: var(--text);
}

.login-wrap {
    min-height: 100vh;
    display: grid;
    place-items: center;
    padding: 24px;
}

.card {
    width: 100%;
    max-width: 420px;
    background: var(--card);
    border: 1px solid var(--line);
    border-radius: 14px;
    padding: 24px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
}

.logo {
    width: 160px;
    height: auto;
    display: block;
    margin: 0 auto 16px;
}

h1 {
    margin: 0 0 8px;
    font-size: 24px;
    text-align: center;
}

p {
    margin: 0 0 18px;
    color: var(--muted);
    text-align: center;
}

label {
    display: block;
    margin: 0 0 8px;
    font-size: 14px;
    font-weight: 600;
}

.radio-group {
    margin: 0 0 14px;
}

.radio-option {
    display: flex;
    align-items: center;
    gap: 8px;
    margin: 0 0 6px;
    font-weight: 500;
}

.radio-option input[type="radio"] {
    width: auto;
    margin: 0;
}

input[type="email"],
input[name="code"] {
    width: 100%;
    border: 1px solid var(--line);
    border-radius: 10px;
    padding: 11px 12px;
    font-size: 16px;
}

input[type="email"]:focus,
input[name="code"]:focus {
    outline: 2px solid rgba(37, 99, 235, 0.22);
    border-color: var(--brand);
}

button {
    width: 100%;
    border: 0;
    border-radius: 10px;
    padding: 12px;
    margin-top: 14px;
    background: var(--brand);
    color: #fff;
    font-weight: 600;
    font-size: 15px;
    cursor: pointer;
}

button:hover {
    background: var(--brand-hover);
}

.alert {
    margin-bottom: 12px;
    border: 1px solid #fecaca;
    background: var(--danger-bg);
    color: var(--danger-text);
    border-radius: 10px;
    padding: 10px 12px;
    font-size: 14px;
}

.link-btn {
    display: inline-block;
    margin-top: 12px;
    text-decoration: none;
    color: var(--brand);
    font-weight: 600;
}