:root {
    --login-primary:   #02233b;
    --login-accent:    #43a4e2;
    --login-white:     #ffffff;
    --login-font-sans: 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    --login-font-ser:  'Times New Roman', Georgia, serif;
}

.login-screen {
    position: relative;
    height: 100vh;
    width: 100vw;
    overflow: hidden;

    background-color: var(--login-primary);

    background-image:
        linear-gradient(
            to bottom,
            rgba(2, 35, 59, 0.15) 0%,
            rgba(2, 35, 59, 0.40) 45%,
            rgba(2, 35, 59, 0.88) 70%,
            rgba(2, 35, 59, 0.97) 100%
        ),
        url('../img/login-bg.jpg');
    background-size: cover;
    background-position: center top;
    background-repeat: no-repeat;

    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: 0 32px 56px;
}

#loginForm {
    width: 100%;
}

.login-form-group {
    margin-bottom: 28px;
}

.login-label {
    display: block;
    color: var(--login-white);
    font-family: var(--login-font-ser);
    font-size: 13px;
    font-weight: 400;
    letter-spacing: 3px;
    text-transform: uppercase;
    margin-bottom: 6px;
    opacity: 0.90;
}

.login-input {
    width: 100%;
    background: transparent;
    border: none;
    border-bottom: 1px solid rgba(255, 255, 255, 0.70);
    color: var(--login-white);
    font-family: var(--login-font-sans);
    font-size: 17px;
    padding: 6px 0 8px;
    outline: none;
    border-radius: 0;
    caret-color: var(--login-accent);
    transition: border-color 0.25s;
}

.login-input:focus {
    border-bottom-color: var(--login-white);
}

.login-input::placeholder {
    color: rgba(255, 255, 255, 0.38);
}

.login-input:-webkit-autofill,
.login-input:-webkit-autofill:focus {
    -webkit-box-shadow: 0 0 0 1000px transparent inset !important;
    -webkit-text-fill-color: var(--login-white) !important;
    transition: background-color 5000s ease-in-out 0s;
}

.login-actions {
    display: flex;
    gap: 14px;
    margin-top: 36px;
}

.btn-login {
    flex: 1;
    padding: 15px 0;
    border-radius: 50px;
    font-family: var(--login-font-ser);
    font-size: 15px;
    font-weight: 700;
    letter-spacing: 2px;
    text-transform: uppercase;
    cursor: pointer;
    text-align: center;
    transition: opacity 0.2s, transform 0.15s;
    -webkit-tap-highlight-color: transparent;
    border: none;
}

.btn-login:active {
    transform: scale(0.97);
    opacity: 0.85;
}

.btn-entrar {
    background-color: var(--login-white);
    color: var(--login-primary);
}

.btn-inscrever {
    background-color: transparent;
    color: var(--login-white);
    border: 1.5px solid var(--login-white);
}

#btnSubmit:disabled {
    opacity: 0.65;
    cursor: not-allowed;
}