/* Variáveis CSS */
:root {
    --primary-color: #3b82f6;
    --primary-dark: #2563eb;
    --success-color: #10b981;
    --error-color: #ef4444;
    --warning-color: #f59e0b;
    --surface-color: #ffffff;
    --background-color: #f8fafc;
    --text-color: #1e293b;
    --text-muted: #64748b;
    --border-color: #e2e8f0;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --border-radius: 8px;
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-color);
    padding: 20px;
}

/* Container de login */
.login-container {
    width: 100%;
    max-width: 400px;
    animation: slideIn 0.6s ease-out;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(-30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Card de login */
.login-card {
    background: var(--surface-color);
    border-radius: 16px;
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    overflow: hidden;
    position: relative;
}

.login-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--primary-dark));
}

/* Header do login */
.login-header {
    text-align: center;
    padding: 40px 30px 30px;
    background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
}

.logo {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    box-shadow: var(--shadow-lg);
}

.logo i {
    font-size: 32px;
    color: white;
}

.login-header h1 {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--text-color);
    margin-bottom: 8px;
}

.login-header p {
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* Formulário */
.login-form {
    padding: 30px;
}

.form-group {
    margin-bottom: 24px;
}

.form-group label {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 600;
    color: var(--text-color);
    margin-bottom: 8px;
    font-size: 0.9rem;
}

.form-group label i {
    color: var(--primary-color);
    font-size: 0.9rem;
}

.form-group input {
    width: 100%;
    padding: 14px 16px;
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    font-size: 16px; /* Evita zoom no iOS */
    transition: all 0.3s ease;
    background: #fafafa;
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
}

.form-group input:focus {
    outline: none;
    border-color: var(--primary-color);
    background: white;
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

/* Neutraliza estilos de erro antes da validação (inicial) */
.login-form:not(.was-validated) .form-group input:invalid {
    border-color: var(--border-color) !important;
    box-shadow: none !important;
    outline: none !important;
}

/* Evita erro visual enquanto o campo estiver vazio (com placeholder) */
.login-form:not(.was-validated) .form-group input:required:invalid:placeholder-shown {
    border-color: var(--border-color) !important;
    box-shadow: none !important;
    outline: none !important;
}

/* Compatibilidade (Firefox e outros) */
.login-form:not(.was-validated) .form-group input:-moz-ui-invalid {
    box-shadow: none !important;
    outline: none !important;
}
.login-form:not(.was-validated) .form-group input:user-invalid {
    box-shadow: none !important;
    outline: none !important;
}

/* Neutralização específica por ID (garantia extra) */
.login-form:not(.was-validated) #email:invalid,
.login-form:not(.was-validated) #senha:invalid {
    border-color: var(--border-color) !important;
    box-shadow: none !important;
    outline: none !important;
}

/* Neutralização máxima por seletor do formulário */
form#loginForm:not(.was-validated) input:invalid,
form#loginForm:not(.was-validated) input:required:invalid:placeholder-shown {
    border-color: var(--border-color) !important;
    box-shadow: none !important;
    outline: none !important;
}

/* Password input */
.password-input {
    position: relative;
}

.password-input input {
    padding-right: 50px;
}

.toggle-password {
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 8px;
    border-radius: 4px;
    transition: color 0.2s ease;
}

.toggle-password:hover {
    color: var(--primary-color);
}

/* Botão de login */
.login-btn {
    width: 100%;
    padding: 16px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
    border: none;
    border-radius: var(--border-radius);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    min-height: 50px;
}

.login-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(59, 130, 246, 0.3);
}

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

/* Footer do login */
.login-footer {
    padding: 20px 30px 30px;
    background: #f8fafc;
    border-top: 1px solid var(--border-color);
}

.demo-credentials {
    text-align: center;
}

.demo-credentials h4 {
    color: var(--text-color);
    font-size: 0.9rem;
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
}

.demo-credentials h4 i {
    color: var(--primary-color);
}

.credential-item {
    background: white;
    padding: 12px;
    border-radius: 6px;
    font-family: 'Courier New', monospace;
    font-size: 0.85rem;
    border: 1px solid var(--border-color);
    color: var(--text-muted);
}

.credential-item strong {
    color: var(--text-color);
}

/* Toast notifications */
.toast {
    position: fixed;
    top: 20px;
    right: 20px;
    padding: 12px 20px;
    border-radius: var(--border-radius);
    color: white;
    font-weight: 500;
    opacity: 0;
    transform: translateX(100px);
    transition: all 0.3s ease;
    z-index: 1000;
    max-width: 300px;
    box-shadow: var(--shadow-lg);
}

.toast.show {
    opacity: 1;
    transform: translateX(0);
}

.toast-success {
    background: var(--success-color);
}

.toast-error {
    background: var(--error-color);
}

.toast-info {
    background: var(--primary-color);
}

/* Loading state */
.login-btn.loading {
    opacity: 0.7;
    cursor: not-allowed;
    pointer-events: none;
}

.login-btn.loading::after {
    content: '';
    width: 20px;
    height: 20px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top: 2px solid white;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-left: 8px;
}

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

/* Responsividade */
@media (max-width: 768px) {
    body {
        padding: 10px;
    }
    
    .login-card {
        border-radius: 12px;
    }
    
    .login-header {
        padding: 30px 20px 20px;
    }
    
    .login-header h1 {
        font-size: 1.5rem;
    }
    
    .logo {
        width: 60px;
        height: 60px;
    }
    
    .logo i {
        font-size: 28px;
    }
    
    .login-form {
        padding: 20px;
    }
    
    .login-footer {
        padding: 15px 20px 20px;
    }
}

@media (max-width: 480px) {
    .login-container {
        max-width: 100%;
    }
    
    .toast {
        left: 10px;
        right: 10px;
        max-width: none;
    }
    
    .form-group input {
        font-size: 16px; /* Importante para iOS */
    }
    
    .credential-item {
        font-size: 0.8rem;
        padding: 10px;
    }
}

/* Melhorias de acessibilidade */
/* Validação: mostrar erro somente após tentativa de envio */
.login-form.was-validated .form-group input:invalid {
    border-color: var(--error-color);
}

.login-form.was-validated .form-group input:invalid:focus {
    box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.1);
}

/* Animações suaves */
* {
    transition: color 0.2s ease, background-color 0.2s ease, border-color 0.2s ease;
}

/* Estado de focus melhorado */
button:focus-visible,
input:focus-visible {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* Botão de suporte específico para login */
.suporte-whatsapp {
    z-index: 1001 !important; /* Maior que outros elementos */
    position: fixed !important;
}