/* RESET */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Inter', sans-serif;
}

/* BODY (important for layout) */
body {
    min-height: 100vh;
    background: linear-gradient(135deg, #0f4c81, #1a73e8);
    display: flex;
    justify-content: center;
    align-items: center;
}

/* CONTAINER */
.login-container {
    width: 100%;
    max-width: 400px;
    padding: 20px;
}

/* CARD */
.login-card {
    background: #ffffff;
    padding: 30px 25px;
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.15);
    text-align: center;
}

/* TITLE */
.login-card h2 {
    font-size: 24px;
    margin-bottom: 15px;
    color: #0f4c81;
}

/* ERROR */
.error-box {
    background: #ffe5e5;
    color: #c62828;
    padding: 10px;
    border-radius: 6px;
    margin-bottom: 15px;
    font-size: 14px;
}

/* INPUT */
.input-group {
    margin-bottom: 15px;
}

.input-group input {
    width: 100%;
    padding: 10px;
    border-radius: 6px;
    border: 1px solid #ccc;
    outline: none;
    transition: 0.2s;
}

.input-group input:focus {
    border-color: #1a73e8;
}

/* BUTTON */
.login-btn {
    width: 100%;
    padding: 12px;
    background: #1a73e8;
    color: #fff;
    border: none;
    border-radius: 6px;
    font-size: 15px;
    cursor: pointer;
    margin-top: 10px;
    transition: 0.2s;
}

.login-btn:hover {
    background: #1558b0;
}

/* BACK LINK */
.back-link {
    display: inline-block;
    margin-top: 15px;
    font-size: 13px;
    color: #555;
    text-decoration: none;
}

.back-link:hover {
    text-decoration: underline;
}

/* MOBILE */
@media (max-width: 480px) {
    .login-card {
        padding: 25px 20px;
    }

    .login-card h2 {
        font-size: 20px;
    }
}