:root {
    --primary: #3498db;
    --secondary: #1abc9c;
    --accent: #9b59b6;
    --dark: #34495e;
    --medium: #7f8c8d;
    --light: #ecf0f1;
    --danger: #e74c3c;
    --warning: #f39c12;
}

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

body {
    background-color: var(--light);
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
}

.container {
    display: flex;
    width: 900px;
    max-width: 100%;
    height: 600px;
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.1);
    border-radius: 10px;
    overflow: hidden;
}

.left-panel {
    flex: 1;
    background-color: var(--primary);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    color: white;
    padding: 40px;
}

.right-panel {
    flex: 1;
    background-color: white;
    padding: 40px;
    display: flex;
    flex-direction: column;
    position: relative;
}

.logo {
    font-size: 48px;
    font-weight: bold;
    letter-spacing: 2px;
    margin-bottom: 20px;
}

.tagline {
    font-size: 18px;
    text-align: center;
    margin-bottom: 40px;
}

.feature {
    display: flex;
    align-items: center;
    margin-bottom: 20px;
}

.feature-icon {
    margin-right: 15px;
    width: 40px;
    height: 40px;
    background-color: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
}

.feature-text {
    font-size: 16px;
}

.form-container {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.form-title {
    font-size: 28px;
    color: var(--dark);
    margin-bottom: 30px;
    text-align: center;
}

.form-group {
    margin-bottom: 20px;
}

.form-label {
    display: block;
    margin-bottom: 8px;
    color: var(--dark);
    font-weight: 500;
    font-size: 14px;
}

.form-input {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 16px;
    color: var(--dark);
    transition: border 0.3s;
}

.form-input:focus {
    outline: none;
    border-color: var(--primary);
}

.form-button {
    width: 100%;
    padding: 12px 15px;
    background-color: var(--primary);
    color: white;
    border: none;
    border-radius: 5px;
    font-size: 16px;
    cursor: pointer;
    transition: background-color 0.3s;
    margin-top: 10px;
}

.form-button:hover {
    background-color: #2980b9;
}

.form-button.secondary {
    background-color: white;
    color: var(--primary);
    border: 1px solid var(--primary);
}

.form-button.secondary:hover {
    background-color: rgba(52, 152, 219, 0.1);
}

.form-button.accent {
    background-color: var(--accent);
}

.form-button.accent:hover {
    background-color: #8e44ad;
}

.form-footer {
    margin-top: 20px;
    text-align: center;
    font-size: 14px;
    color: var(--medium);
}

.form-link {
    color: var(--primary);
    text-decoration: none;
    cursor: pointer;
}

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

.back-button {
    position: absolute;
    top: 20px;
    left: 20px;
    background: none;
    border: none;
    color: var(--medium);
    cursor: pointer;
    display: flex;
    align-items: center;
    font-size: 14px;
}

.back-button:hover {
    color: var(--dark);
}

.hidden {
    display: none;
}

@media (max-width: 768px) {
    .container {
        flex-direction: column;
        height: auto;
    }
    
    .left-panel {
        padding: 30px;
    }
    
    .right-panel {
        padding: 30px;
    }
}

/* Estilos para mensagens */
.message {
    padding: 10px 15px;
    border-radius: 4px;
    margin-bottom: 20px;
    text-align: center;
    transition: opacity 0.5s ease;
}

.success {
    background-color: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.error {
    background-color: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

.warning {
    background-color: #fff3cd;
    color: #856404;
    border: 1px solid #ffeeba;
}

.info {
    background-color: #d1ecf1;
    color: #0c5460;
    border: 1px solid #bee5eb;
}

/* Estilos para .hidden que já devem existir, mas caso não existam: */
.hidden {
    display: none;
}