* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Arial', sans-serif;
    background: linear-gradient(135deg, var(--color-teacher-secondary) 0%, var(--color-teacher-primary) 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.container {
    background-color: var(--color-background-light);
    padding: 40px;
    border-radius: 15px;
    box-shadow: var(--shadow-md);
    width: 100%;
    max-width: 450px;
    text-align: center;
}

h1 {
    color: var(--color-text-dark-primary);
    font-size: 2.5rem;
    font-weight: bold;
    margin-bottom: 10px;
    letter-spacing: 2px;
}

h2 {
    color: var(--color-teacher-primary);
    font-size: 1.2rem;
    margin-bottom: 30px;
    font-weight: 600;
}

.message {
    padding: 15px;
    margin: 20px 0;
    border-radius: 8px;
    text-align: center;
    font-weight: 500;
    font-size: 0.9rem;
}

.message.success {
    background-color: rgba(117, 214, 213, 0.2);
    color: var(--color-text-dark-primary);
    border: 2px solid var(--color-teacher-secondary);
}

.message.error {
    background-color: rgba(18, 18, 18, 0.1);
    color: var(--color-text-dark-primary);
    border: 2px solid var(--color-text-dark-primary);
}

form {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

label {
    display: block;
    margin-top: 10px;
    margin-bottom: 5px;
    font-weight: 600;
    color: var(--color-text-dark-primary);
    text-align: left;
    font-size: 0.95rem;
}

input[type="text"],
input[type="email"],
input[type="password"],
select {
    width: 100%;
    padding: 15px;
    border: 2px solid transparent;
    border-radius: 10px;
    font-size: 16px;
    background-color: rgba(255, 255, 255, 0.8);
    color: var(--color-text-dark-primary);
    transition: all 0.3s ease;
}

input[type="text"]:focus,
input[type="email"]:focus,
input[type="password"]:focus,
select:focus {
    outline: none;
    border-color: var(--color-teacher-primary);
    background-color: var(--color-background-white);
    box-shadow: 0 0 0 3px rgba(76, 175, 174, 0.1);
}

input::placeholder {
    color: var(--color-text-dark-tertiary);
}

select {
    cursor: pointer;
}

select option {
    padding: 10px;
    background-color: var(--color-background-light);
    color: var(--color-text-dark-primary);
}

optgroup {
    font-weight: bold;
    color: var(--color-teacher-primary);
}

.senha-container {
    position: relative;
    width: 100%;
}

.senha-container input {
    width: 100%;
    padding-right: 45px;
}

.olho {
    position: absolute;
    right: 15px;
    top: 50%;
    transform: translateY(-50%);
    cursor: pointer;
    color: var(--color-text-dark-muted);
    font-size: 18px;
    transition: color 0.3s ease;
}

.olho:hover {
    color: var(--color-text-dark-primary);
}

button[type="submit"] {
    background: linear-gradient(135deg, var(--color-teacher-primary) 0%, var(--color-teacher-secondary) 100%);
    color: var(--color-text-light-primary);
    border: none;
    padding: 15px;
    border-radius: 10px;
    font-size: 16px;
    font-weight: bold;
    cursor: pointer;
    margin-top: 10px;
    transition: all 0.3s ease;
    text-transform: uppercase;
    letter-spacing: 1px;
}

button[type="submit"]:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px var(--shadow-glow-teacher);
}

button[type="submit"]:active {
    transform: translateY(0);
}

button[type="submit"]:disabled {
    background: var(--color-text-dark-secondary);
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
    opacity: 0.7;
}

.login-link,
.register-link {
    color: var(--color-teacher-primary);
    cursor: pointer;
    text-decoration: underline;
    margin-top: 20px;
    font-weight: 600;
    font-size: 0.9rem;
    transition: all 0.3s ease;
    display: block;
    text-align: center;
}

.login-link:hover,
.register-link:hover {
    color: var(--color-text-dark-primary);
    transform: scale(1.05);
}

@media (max-width: 500px) {
    .container {
        padding: 30px 20px;
        margin: 10px;
    }
    
    h1 {
        font-size: 2rem;
    }
    
    h2 {
        font-size: 1rem;
    }
    
    input[type="text"],
    input[type="email"],
    input[type="password"],
    select {
        padding: 12px;
        font-size: 14px;
    }
    
    button[type="submit"] {
        padding: 12px;
        font-size: 14px;
    }
}