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

        html,
        body {
            margin: 0;
            padding: 0;
            width: 100%;
            overflow-x: hidden;
            /* impede rolagem lateral */
        }

        .container {
            max-width: 100%;
            padding: 0 10px;
            /* ou menos, se quiser mais justo */
            box-sizing: border-box;
        }


        /* 🔹 Fundo animado */
        .background-effects {
            position: absolute;
            inset: 0;
            pointer-events: none;
            z-index: 0;
        }

        .effect-circle {
            position: absolute;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.05);
            animation: float 15s infinite ease-in-out;
        }

        .effect-1 {
            width: 300px;
            height: 300px;
            top: -150px;
            left: -100px;
        }

        .effect-2 {
            width: 200px;
            height: 200px;
            bottom: -100px;
            right: -50px;
            animation-delay: -5s;
        }

        .effect-3 {
            width: 150px;
            height: 150px;
            bottom: 30%;
            left: 20%;
            animation-delay: -10s;
        }

        @keyframes float {

            0%,
            100% {
                transform: translateY(0) rotate(0);
            }

            50% {
                transform: translateY(-20px) rotate(180deg);
            }
        }

        /* 🔹 Caixa de login */
        .login-container {
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(10px);
            border-radius: 20px;
            padding: 2.5rem;
            box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
            width: 100%;
            max-width: 420px;
            text-align: center;
            position: relative;
            z-index: 1;
            border: 1px solid rgba(255, 255, 255, 0.2);
            transition: all 0.6s ease;
        }

        .login-header {
            margin-bottom: 2rem;
        }

        .logo {
            width: 80px;
            height: 80px;
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 1.5rem;
            color: white;
            font-size: 2rem;
        }

        .login-header h1 {
            margin: 0 0 0.5rem;
            font-weight: 700;
            font-size: 1.8rem;
            color: #333;
        }

        .login-header p {
            margin: 0;
            color: #666;
        }

        /* 🔹 Formulário */
        .form-group {
            margin-bottom: 1.5rem;
            position: relative;
        }

        .form-group label {
            margin-bottom: 0.5rem;
            display: inline-block;
            font-weight: 600;
            color: #555;
        }

        .input-wrapper {
            position: relative;
            display: flex;
            align-items: center;
        }

        .form-group input {
            width: 100%;
            padding: 0.75rem 1rem 0.75rem 2.5rem;
            /* espaço p/ ícone */
            border: 2px solid #e1e5e9;
            border-radius: 12px;
            font-size: 1rem;
            background-color: #f8fafc;
            transition: all 0.3s ease;
        }

        .form-group input:focus {
            outline: none;
            border-color: #667eea;
            background: #fff;
            box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
        }

        .form-group.error input {
            border-color: #e74c3c;
            background: #fdf2f2;
        }

        .icon-container {
            position: absolute;
            left: 0.75rem;
            color: #95a5a6;
        }

        .toggle-container {
            position: absolute;
            right: 0.75rem;
            cursor: pointer;
            color: #95a5a6;
        }

        /* 🔹 Erros */
        .error-message {
            color: #e74c3c;
            font-size: 0.85rem;
            margin-top: 0.4rem;
            display: none;
        }

        /* 🔹 Botões */
        .login-button,
        .biometric-login {
            width: 100%;
            padding: 0.75rem;
            border-radius: 12px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            margin-bottom: 1rem;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            transition: all 0.3s ease;
        }

        .login-button {
            background: linear-gradient(135deg, #667eea, #764ba2);
            color: #fff;
            border: none;
        }

        .login-button:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 25px -5px rgba(102, 126, 234, 0.4);
        }

        .biometric-login {
            background: #f8f9fa;
            border: 2px solid #e9ecef;
            color: #495057;
        }

        .biometric-login:hover {
            background: #e9ecef;
        }

        /* 🔹 Rodapé */
        .login-footer {
            margin-top: 1rem;
            font-size: 0.9rem;
            color: #666;
        }

        .login-footer a {
            color: #667eea;
            font-weight: 600;
            text-decoration: none;
        }

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

        /* 🔹 Status */
        .status-message {
            margin-top: 1rem;
            padding: 0.75rem;
            border-radius: 8px;
            font-weight: 600;
            display: none;
        }

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

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

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

        @media (max-width: 480px) {
            .login-container {
                margin: 1rem;
                padding: 1.5rem;
            }

            .login-header h1 {
                font-size: 1.5rem;
            }
        }