/* Reset e variáveis */
:root {
    --primary-color: #26b566; /* Cor verde do Lemma Survey */
    --primary-hover: #1f9652; /* Verde mais escuro para hover */
    --dark-text: #161c2d;
    --light-text: #6e727f;
    --light-bg: #f0f9f4; /* Fundo com tom levemente esverdeado */
    --error-color: #e53e3e;
    --success-color: #38a169;
    --shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --border-radius: 6px;
}

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

body {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--light-bg);
    padding: 1rem;
    position: relative;
}

/* Container principal */
.login-container {
    width: 100%;
    max-width: 420px;
    background-color: white;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    overflow: hidden;
}

/* Cabeçalho */
.login-header {
    padding: 2rem 2rem 1rem;
    text-align: center;
}

.login-header h1 {
    color: var(--dark-text);
    font-size: 1.75rem;
    margin-bottom: 0.75rem;
    font-weight: 600;
}

.login-header p {
    color: var(--light-text);
    font-size: 0.95rem;
    line-height: 1.5;
}

/* Logo */
.logo {
    display: block;
    margin: 0 auto 1.5rem;
    max-width: 120px;
    height: auto;
}

/* Formulário */
.login-form {
    padding: 1rem 2rem 2rem;
}

.form-group {
    margin-bottom: 1.25rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--dark-text);
    font-size: 0.9rem;
    font-weight: 500;
}

.form-group input {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1px solid #e2e8f0;
    border-radius: var(--border-radius);
    font-size: 1rem;
    color: var(--dark-text);
    transition: border 0.2s, box-shadow 0.2s;
}

.form-group input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(38, 181, 102, 0.2);
}

.form-group input::placeholder {
    color: #cbd5e0;
}

/* Esqueci a senha e Lembrar-me */
.form-options {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1.5rem;
    font-size: 0.85rem;
}

.remember-me {
    display: flex;
    align-items: center;
}

.remember-me input {
    margin-right: 0.35rem;
}

.forgot-password {
    color: var(--primary-color);
    text-decoration: none;
    transition: color 0.2s;
    cursor: pointer;
}

.forgot-password:hover {
    color: var(--primary-hover);
    text-decoration: underline;
}

/* Botão de login */
.login-button {
    display: block;
    width: 100%;
    padding: 0.85rem;
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: var(--border-radius);
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: background-color 0.2s;
}

.login-button:hover {
    background-color: var(--primary-hover);
}

/* Opção de registro */
.register-option {
    margin-top: 1.5rem;
    text-align: center;
    font-size: 0.9rem;
    color: var(--light-text);
}

.register-link {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s;
}

.register-link:hover {
    color: var(--primary-hover);
    text-decoration: underline;
}

/* Mensagens de erro e sucesso */
.alert {
    padding: 0.75rem 1rem;
    border-radius: var(--border-radius);
    margin-bottom: 1.5rem;
    font-size: 0.9rem;
}

.alert-error {
    background-color: #fff5f5;
    color: var(--error-color);
    border: 1px solid #fed7d7;
}

.alert-success {
    background-color: #f0fff4;
    color: var(--success-color);
    border: 1px solid #c6f6d5;
}

/* Modal de recuperação de senha */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s, visibility 0.3s;
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal {
    background-color: white;
    border-radius: var(--border-radius);
    width: 100%;
    max-width: 400px;
    box-shadow: var(--shadow);
    position: relative;
    transform: translateY(-20px);
    transition: transform 0.3s;
}

.modal-overlay.active .modal {
    transform: translateY(0);
}

.modal-header {
    padding: 1.5rem 1.5rem 0.5rem;
    border-bottom: 1px solid #e2e8f0;
}

.modal-header h2 {
    font-size: 1.25rem;
    color: var(--dark-text);
    font-weight: 600;
}

.modal-body {
    padding: 1.5rem;
}

.modal-footer {
    padding: 0.5rem 1.5rem 1.5rem;
    display: flex;
    justify-content: flex-end;
    gap: 0.75rem;
}

.modal-close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    color: var(--light-text);
    background: none;
    border: none;
    font-size: 1.25rem;
    cursor: pointer;
    transition: color 0.2s;
}

.modal-close:hover {
    color: var(--dark-text);
}

.btn {
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius);
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
}

.btn-primary {
    background-color: var(--primary-color);
    color: white;
    border: none;
}

.btn-primary:hover {
    background-color: var(--primary-hover);
}

.btn-secondary {
    background-color: #f7fafc;
    color: var(--dark-text);
    border: 1px solid #e2e8f0;
}

.btn-secondary:hover {
    background-color: #edf2f7;
}

.captcha-container {
    margin-top: 1rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.captcha-image {
    background-color: #f7fafc;
    border: 1px solid #e2e8f0;
    border-radius: var(--border-radius);
    padding: 0.75rem;
    text-align: center;
    font-weight: bold;
    letter-spacing: 2px;
    font-size: 1.25rem;
    user-select: none;
    color: var(--dark-text);
}

.spinner {
    display: inline-block;
    width: 1.5rem;
    height: 1.5rem;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: white;
    animation: spin 1s ease-in-out infinite;
    margin-right: 0.5rem;
    vertical-align: middle;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Responsividade para dispositivos muito pequenos */
@media (max-width: 360px) {
    .login-header {
        padding: 1.5rem 1.5rem 0.75rem;
    }

    .login-form {
        padding: 0.75rem 1.5rem 1.5rem;
    }

    .form-options {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.75rem;
    }
}