:root {
    --bg: #0f172a;
    --card: #111827;
    --accent: #2563eb;
    --error: #dc2626;
    --text: #e5e7eb;
    --muted: #9ca3af;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: system-ui, -apple-system, sans-serif;
}

body {
    background: linear-gradient(135deg, #020617, #0f172a);
    color: var(--text);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.login-wrapper {
    width: 100%;
    max-width: 420px;
    padding: 20px;
}

.login-card {
    background: var(--card);
    border-radius: 16px;
    padding: 30px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, .5);
}

.logo {
    font-size: 28px;
    text-align: center;
    margin-bottom: 10px;
}

h1 {
    text-align: center;
    font-size: 22px;
    margin-bottom: 5px;
}

.subtitle {
    text-align: center;
    font-size: 13px;
    color: var(--muted);
    margin-bottom: 20px;
}

.form-group {
    margin-bottom: 15px;
}

label {
    font-size: 12px;
    color: var(--muted);
    display: block;
    margin-bottom: 5px;
}

input {
    width: 100%;
    padding: 10px;
    border-radius: 8px;
    border: 1px solid #1f2937;
    background: #020617;
    color: var(--text);
}

input:focus {
    outline: none;
    border-color: var(--accent);
}

button {
    width: 100%;
    padding: 12px;
    background: var(--accent);
    border: none;
    border-radius: 8px;
    color: white;
    font-weight: bold;
    cursor: pointer;
}

button:hover {
    background: #1d4ed8;
}

.error {
    background: rgba(220, 38, 38, .2);
    color: #fca5a5;
    padding: 10px;
    border-radius: 8px;
    margin-bottom: 15px;
    text-align: center;
    display: none;
}

.footer {
    text-align: center;
    margin-top: 15px;
    font-size: 11px;
    color: var(--muted);
}

@media (max-width: 480px) {
    .login-card {
        padding: 20px;
    }

    h1 {
        font-size: 18px;
    }
}