/* Reset e Variáveis */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #6366f1;
    --primary-dark: #4f46e5;
    --secondary-color: #8b5cf6;
    --accent-color: #ec4899;
    --text-dark: #1f2937;
    --text-light: #6b7280;
    --bg-light: #f9fafb;
    --bg-white: #ffffff;
    --border-color: #e5e7eb;
    --error-color: #ef4444;
    --success-color: #10b981;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.auth-container {
    width: 100%;
    max-width: 450px;
}

.auth-card {
    background: var(--bg-white);
    border-radius: 16px;
    padding: 2.5rem;
    box-shadow: var(--shadow-lg);
    animation: slideUp 0.5s ease;
}

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

.auth-header {
    text-align: center;
    margin-bottom: 2rem;
}

.logo-link {
    text-decoration: none;
    color: inherit;
}

.logo-link h1 {
    font-size: 1.75rem;
    font-weight: 800;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.auth-header h2 {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 0.5rem;
}

.auth-header p {
    color: var(--text-light);
    font-size: 0.95rem;
}

.auth-form {
    margin-top: 2rem;
}

.form-group {
    margin-bottom: 0.1rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.2rem;
    font-weight: 500;
    color: var(--text-dark);
    font-size: 0.9rem;
}

.form-group input[type="text"],
.form-group input[type="email"],
.form-group input[type="tel"],
.form-group input[type="password"] {
    width: 100%;
    padding: 0.875rem;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-size: 1rem;
    transition: all 0.3s;
    font-family: inherit;
}

.form-group input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.form-group input:invalid:not(:placeholder-shown) {
    border-color: var(--error-color);
}

.password-input {
    position: relative;
}

.password-input input {
    padding-right: 3rem;
}

.toggle-password {
    position: absolute;
    right: 0.75rem;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    cursor: pointer;
    font-size: 1.2rem;
    padding: 0.25rem;
    opacity: 0.6;
    transition: opacity 0.3s;
}

.toggle-password:hover {
    opacity: 1;
}

.password-requirements {
    margin-top: 0.5rem;
    padding: 0.75rem;
    background: var(--bg-light);
    border-radius: 6px;
    font-size: 0.85rem;
}

.password-requirements small {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-light);
    font-weight: 500;
}

.password-requirements ul {
    list-style: none;
    margin: 0;
    padding: 0;
}

.password-requirements li {
    padding: 0.25rem 0;
    color: var(--text-light);
    transition: color 0.3s;
}

.password-requirements li.valid {
    color: var(--success-color);
}

.password-requirements li.valid::before {
    content: '✓ ';
    font-weight: bold;
}

.error-message {
    display: block;
    color: var(--error-color);
    font-size: 0.85rem;
    margin-top: 0.5rem;
    min-height: 1.25rem;
}

.form-group small {
    display: block;
    margin-top: 0.5rem;
    color: var(--text-light);
    font-size: 0.85rem;
}

.form-options {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    font-size: 0.9rem;
    color: var(--text-dark);
}

.checkbox-label input[type="checkbox"] {
    width: 18px;
    height: 18px;
    cursor: pointer;
    accent-color: var(--primary-color);
}

.checkbox-label a {
    color: var(--primary-color);
    text-decoration: none;
}

.checkbox-label a:hover {
    text-decoration: underline;
}

.forgot-link {
    color: var(--primary-color);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
}

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

.btn {
    display: inline-block;
    padding: 0.875rem 1.5rem;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s;
    border: none;
    cursor: pointer;
    font-size: 1rem;
    font-family: inherit;
    text-align: center;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-primary:active {
    transform: translateY(0);
}

.btn-block {
    width: 100%;
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none !important;
}

.auth-divider {
    text-align: center;
    margin: 1.5rem 0;
    position: relative;
}

.auth-divider::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    height: 1px;
    background: var(--border-color);
}

.auth-divider span {
    background: var(--bg-white);
    padding: 0 1rem;
    color: var(--text-light);
    position: relative;
}

.auth-footer {
    text-align: center;
    margin-top: 1.5rem;
    color: var(--text-light);
    font-size: 0.9rem;
}

.auth-footer a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
}

.auth-footer a:hover {
    text-decoration: underline;
}

.auth-message {
    margin-top: 1rem;
    padding: 1rem;
    border-radius: 8px;
    text-align: center;
    font-size: 0.9rem;
    display: none;
}

.auth-message.show {
    display: block;
}

.auth-message.success {
    background: #d1fae5;
    color: #065f46;
    border: 1px solid var(--success-color);
}

.auth-message.error {
    background: #fee2e2;
    color: #991b1b;
    border: 1px solid var(--error-color);
}

/* Responsive */
@media (max-width: 480px) {
    .auth-card {
        padding: 2rem 1.5rem;
    }

    .auth-header h2 {
        font-size: 1.5rem;
    }

    .form-options {
        flex-direction: column;
        align-items: flex-start;
    }
}