* {
    box-sizing: border-box;
}

body {
    margin: 0;
    min-height: 100vh;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    background: radial-gradient(circle at top, #2a2a2a, #141414 55%);
    color: #fff;
}

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

.login-card {
    width: 100%;
    max-width: 420px;
    background: #1f1f1f;
    border: 1px solid #333;
    border-radius: 12px;
    padding: 28px;
    box-shadow: 0 24px 40px rgba(0, 0, 0, 0.35);
}

.login-card h1 {
    margin: 0 0 8px;
    font-size: 28px;
}

.login-subtitle {
    margin: 0 0 20px;
    color: #a6a6a6;
}

.login-form {
    display: grid;
    gap: 10px;
}

.login-form label {
    font-size: 13px;
    color: #bdbdbd;
}

.login-form input {
    width: 100%;
    border: 1px solid #474747;
    border-radius: 8px;
    background: #121212;
    color: #fff;
    padding: 11px 12px;
    font-size: 15px;
}

.login-form input:focus {
    outline: 2px solid #33cc00;
    outline-offset: 0;
}

#loginBtn {
    margin-top: 8px;
    border: 1px solid #33cc00;
    border-radius: 8px;
    background: #33cc00;
    color: #102400;
    font-size: 15px;
    font-weight: 700;
    padding: 10px 12px;
    cursor: pointer;
}

#loginBtn:hover {
    background: #44de11;
}

#loginBtn:disabled {
    opacity: 0.7;
    cursor: wait;
}

.login-error {
    min-height: 20px;
    margin: 6px 0 0;
    color: #ff7a7a;
    font-size: 13px;
}