:root {
    --turquesa: #1abc9c;
    --rosa: #ff6b81;
    --rosa-claro: #ffd1d8;
    --turquesa-claro: #a7e8df;
    --degradado: linear-gradient(45deg, var(--turquesa), var(--rosa));
    --text-dark: #333;
    --text-light: #666;
    --background: #f8f9fa;
    --white: #ffffff;
    --shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
}

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

body {
    min-height: 100vh;
    background: var(--degradado);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    color: var(--text-dark);
}

.auth-container {
    width: 100%;
    max-width: 500px;
    background: var(--white);
    border-radius: 15px;
    box-shadow: var(--shadow);
    padding: 40px;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.auth-form {
    width: 100%;
}

.auth-form h1 {
    color: var(--turquesa);
    margin-bottom: 30px;
    position: relative;
    padding-bottom: 10px;
    text-align: center;
}

.auth-form h1::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: var(--degradado);
}

.input-group {
    margin-bottom: 20px;
    width: 100%;
}

.input-group label {
    display: block;
    margin-bottom: 8px;
    color: var(--text-light);
    font-weight: 500;
}

.input-group input {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid #ddd;
    border-radius: 8px;
    font-size: 1em;
    transition: var(--transition);
}

.input-group input:focus {
    border-color: var(--turquesa);
    outline: none;
    box-shadow: 0 0 0 3px var(--turquesa-claro);
}

.btn {
    background: var(--degradado);
    color: white;
    border: none;
    padding: 12px 20px;
    border-radius: 8px;
    font-size: 1em;
    cursor: pointer;
    transition: var(--transition);
    font-weight: 600;
    width: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 10px;
}

.btn:hover {
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
    transform: translateY(-2px);
}

.error-message,
.success-message {
    text-align: center;
    margin-top: 20px;
    font-weight: bold;
}

.error-message {
    color: #e74c3c;
}

.success-message {
    color: #2ecc71;
}

a {
    color: var(--rosa);
    text-decoration: underline;
    font-weight: 500;
}

a:hover {
    color: var(--turquesa);
}