* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: 'Poppins', sans-serif;
    background:
        radial-gradient(circle at top left, rgba(0,180,216,.20), transparent 25%),
        radial-gradient(circle at bottom right, rgba(0,119,182,.18), transparent 25%),
        linear-gradient(135deg, #07141f 0%, #0b2233 100%);
    color: #ecf8ff;
    min-height: 100vh;
}

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

.login-card {
    width: 100%;
    max-width: 430px;
    background: rgba(8, 28, 41, 0.84);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: 24px;
    backdrop-filter: blur(18px);
    box-shadow: 0 25px 50px rgba(0,0,0,.35);
    padding: 30px 26px;
}

.login-brand {
    text-align: center;
    margin-bottom: 24px;
}

.login-logo {
    width: 90px;
    height: 90px;
    object-fit: contain;
    margin-bottom: 10px;
}

.login-brand h1 {
    margin: 0;
    font-size: 30px;
}

.login-brand p {
    margin: 6px 0 0;
    color: #b7d7e6;
    font-size: 14px;
}

.login-form {
    display: grid;
    gap: 16px;
}

.form-group {
    display: grid;
    gap: 8px;
}

.form-group label {
    font-size: 14px;
    color: #dff7ff;
}

.form-group input {
    width: 100%;
    border: 1px solid rgba(255,255,255,0.10);
    background: rgba(255,255,255,0.05);
    color: #fff;
    border-radius: 14px;
    padding: 14px 16px;
    outline: none;
    font-size: 14px;
}

.form-group input:focus {
    border-color: rgba(0,180,216,.5);
    box-shadow: 0 0 0 3px rgba(0,180,216,.12);
}

.form-options {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 14px;
    flex-wrap: wrap;
}

.check-row {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: #cfe9f3;
}

.login-link {
    font-size: 13px;
    color: #8ddcff;
    text-decoration: none;
}

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

.btn-login {
    border: 0;
    border-radius: 14px;
    padding: 14px 18px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    color: #fff;
    background: linear-gradient(135deg, #00b4d8, #0077b6);
    transition: transform .18s ease, opacity .18s ease;
}

.btn-login:hover {
    transform: translateY(-1px);
}

.btn-login:disabled {
    opacity: 0.75;
    cursor: not-allowed;
}

.login-msg {
    min-height: 22px;
    font-size: 14px;
    padding-top: 2px;
}

.login-msg.error {
    color: #ffb8c2;
}

.login-msg.success {
    color: #7df0b2;
}

.login-footer {
    text-align: center;
    margin-top: 18px;
    font-size: 12px;
    color: #9fc8d9;
}