:root {
    --primary-color: #4361ee;
    --primary-light: #4895ef;
    --secondary-color: #3f37c9;
    --accent-color: #4cc9f0;
    --dark-color: #1b263b;
    --light-color: #f8f9fa;
    --success-color: #4cc9f0;
    --danger-color: #f72585;
    --warning-color: #f8961e;
    --info-color: #43aa8b;
    --border-radius: 12px;
    --box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Poppins', 'Segoe UI', sans-serif;
}

body {
    background: linear-gradient(135deg, #f5f7fa 0%, #e4e8f0 100%);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 2rem;
}

.container {
    background-color: white;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    width: 100%;
    max-width: 500px;
    padding: 2.5rem;
    animation: fadeIn 0.5s ease;
}

header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

h1 {
    color: var(--dark-color);
    font-size: 1.8rem;
    font-weight: 600;
}

.voltar {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: var(--transition);
}

.voltar:hover {
    color: var(--secondary-color);
    transform: translateX(-3px);
}

.erro {
    background-color: rgba(247, 37, 133, 0.1);
    color: var(--danger-color);
    padding: 1rem;
    border-radius: var(--border-radius);
    margin-bottom: 1.5rem;
    border-left: 4px solid var(--danger-color);
    animation: slideDown 0.3s ease;
}

.form-group {
    margin-bottom: 1.5rem;
}

label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--dark-color);
    font-weight: 500;
}

input {
    width: 100%;
    padding: 0.8rem 1rem;
    border: 1px solid #ddd;
    border-radius: var(--border-radius);
    font-size: 1rem;
    transition: var(--transition);
    background-color: #f8f9fa;
}

input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(67, 97, 238, 0.2);
    background-color: white;
}

.btn {
    width: 100%;
    padding: 1rem;
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: var(--border-radius);
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: var(--transition);
    margin-top: 1rem;
}

.btn:hover {
    background-color: var(--secondary-color);
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(67, 97, 238, 0.3);
}

.login-link {
    text-align: center;
    margin-top: 1.5rem;
    color: #666;
}

.login-link a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
}

.login-link a:hover {
    color: var(--secondary-color);
    text-decoration: underline;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes slideDown {
    from { opacity: 0; transform: translateY(-20px); }
    to { opacity: 1; transform: translateY(0); }
}

@media (max-width: 576px) {
    body {
        padding: 1rem;
    }
    
    .container {
        padding: 1.5rem;
    }
}

/* Botão Google */
.btn-google {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    padding: 12px 16px;
    border: 1px solid #dadce0;
    border-radius: 4px;
    text-decoration: none;
    font-weight: 600;
    background: #fff;
    margin: 10px 0;
    box-shadow:  rgba(67, 97, 238, 0.3);
    gap: 8px;
}

.btn-google img {
    margin-right: 8px;
}

.btn-google:hover {
    background: #f7f7f7;
}

.separador-ou {
    text-align: center;
    margin: 10px 0;
    color: #888;
    font-size: 14px;
}

.separador-ou span {
    background: #fff;
    padding: 0 8px;
}